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DEPARTMENT OF THE NAVY OFFICE OF THE CHIEF OF NA VAL OPERATIONS
2000 NA VY PENTAGON WASHINGTON, DC 20350-2000
Chief of Naval Operations POM-16 Ship Maintenance Working Group
N43 28 Aug 2014
REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
Ref: ,(a) OPNAVINST 4700. 7L (b) OPNAVINST 3120.33C (c) OPNAVINST 4780.6E
Encl:
(d) NAVSEA ltr Ser SEA 07/0144 of 13 Sep 2012 (NOTAL) (e) NAVSEA ltr Ser SEA 07/0145 of 13 Sep 2012 (NOTAL) (f) NAVSEA ltr Ser SEA 21/126 of 8 Aug 12 (NOTAL) (g) NAVSEA ltr Ser SEA 21/227 of 8 Dec 2010 (NOTAL) (h) NAVSEA ltr Ser SEA 21/247 of 30 Dec 2010 (NOTAL) (i) NAVSEA ltr Ser 10-017 of 06 Dec 2010 (NOTAL) (j) NAVSEA ltr Ser 11-061 of 25 Apr 2011 (NOTAL) (k) NAVSEA ltr Ser 11-038 of 20 Jan 2012 (NOTAL) (1) PEO LITTORAL COMBAT SHIPS ltr Ser PMS 505/0053 of 27
November 2012 (NOTAL) (m) NAVSEA ltr Ser SEA 07/0232 of 02 Dec 13 (NOTAL) (n) NAVSEA ltr Ser SEA 21/124 of 20 Jul 11 (NOTAL) (o) NAVSEA ltr Ser 12-252 of 31 Oct 12 (NOTAL) (p) NAVSEA ltr Ser SEA 21/086 of 17 Apr 13 (NOTAL) (q) NAVSEA ltr Ser SEA 21/039 of 25 Feb 13 (NOTAL)
(1) Representative Intervals, Durations, Maintenance Cycles, and Repair Mandays for Depot Level Maintenance Availabilities
(2) Fleet Codes, Availability Types, Maintenance Strategies, Class No~es, List of Regional Maintenance Center (RMC) Ship Class I-Level Requirements, and Material Unit Costs (MUC)
(3) List of Maintenance Terms and Definitions
1. Current Program Objectives Memorandum 16 (POM-16) availability intervals, durations, material unit cost (MUC) and repair mandays for U.S. Navy Ships except for those operated and maintained by the Military Sealif~ Command.
a. Provide a detailed description of availability types and current maintenance terms.
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
2. Background. Reference (a) established the policies and responsibilities for planning, programming, budgeting, scheduling, performing, and evaluating maintenance of ships. References (b) and (c), established operating intervals and operating cycles. Reference (d) established the Attack submarine, nuclear (SSN) 688 class tailored docking selected restricted availability (DSRA) maintenance notional. Reference (e) established the SSN-688 class tailored engineered overhaul (EOH) availability maintenance notional. Reference (f) recommended changes to the guided missile destroyer (DDG-51) class depot availability plan. Reference (g) recommended changes to the amphibious assault ship (multipurpose) (LHD-1) class depot availability notionals. Reference (h) recommended changes to guided missile cruiser (CG-47) class depot availability plan. Reference (i) recommended changes to the dock landing ship (LSD-41/49) class depot availability plan. Reference (j) recommended changes to the amphibious command ship (LCC-19) class depot availability plan. Reference (k) recommended changes to DDG-1000 class notional depot level maintenance requirements. Reference (1) recommended updated littoral combat ship (LCS-1 & 2) class notional depot maintenance requirements. Reference (m) updated the ship, submersible, ballistic, nuclear submarine(SSBN-726) class engineered refueling overhaul (ERO) availability notional. Reference (n) established the amphibious transport dock (LPD-17) class notional depot maintenance requirements. Reference (o) established the DDG-51 class availability notionals for vessels homeported in Rota, Spain. Reference (p~ established the patrol· craft (PC-1) class notional depot maintenance requirements. Reference (q) established the mine counter measure (MCM-1) class notional depot maintenance requirements.
a. Changes in this notice include major modifications for the following classes:
(1) CG-47
(2) CVN-68/78
-(3) DDG-51
( 4) LCS-: 1
2
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
( 5) PC-1
(6) MCM-1
3. Policy. Requirements for the accomplishment of carrier, surface ship and submarine maintenance for the enhancement of mission readiness are contained in references (a) through (q) .
4. Definitions and Procedures. Interval is defined as the period from the completion of the prior scheduled depot availability to the start of the next scheduled depot availability.
a. Duration is defined as the period from the start of the availability to its completion.
b. Cycle is defined as the period from the end of one availability to the end of the following availability.
c. Repair Mandays are those type commander (TYCOM) depot maintenance mandays typically accomplished by the executing activity to satisfactorily complete the type of availability indicated. Repair mandays include fleet alteration mandays normally accomplished during the availability.
(1) Notional repair mandays are derived from the maintenance requirements contained and managed in the applicable class maintenance plans (CMP) . Technical foundation papers (TFP) detail the analysis conducted to develop the notional repair mandays, associated durations, intervals, and material usage charge factors needed to execute CMP requirements .
. (2) Enclosure (2) provides durations, intervals and
mandays developed in POM-16 to present the best estimates for long range planning and programming. These estimates are adjusted for near year availabilities based on each ship's specific material condition, approved alterations, and depot loading.
(3) Availabilities shall ~ot be scheduled in the year prior to decommissioning unless required to support planned operations. Availability scope shall be based on a technical
3
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
evaluation of the ship's condition and be limited to the mandatory maintenance needed to support planned operations.
(4) Deviation from the notional surface ship and aircraft carrier depot availability interval to accommodate changes in a ship's employment schedule or to facilitate depot work loading is authorized as follows:
Time from completion of prior depot Allowable Deviation availability to end of next depot
availability 0-36 months ± 3 months 37-56 months ± 4 months 57 months and greater ± 5 months
d. Requests for deviations for submarine depot availability intervals shall be submitted per reference (b) .
e. Per reference (a) all depot availability schedule changes shall be coordinated among cognizant TYCOMs, U.S. Fleet Forces Command (USFLTFORCOM), Commander, Naval Sea Systems Command (COMNAVSEASYSCOM) (Logistics Directorate (SEA-04)), applicable NAVSEASYSCOM project manager ships (PMS) offices, applicable program executive office (PEO), applicable planning activity, Director of Naval Nuclear Propulsion Program (SEA-08) for nuclear-powered ships or ships with nuclear support facilities, Office of the Chief of Naval Operations(OPNAV) resource sponsors and OPNAV Fleet Readin~ss Division (OPNAV ( N4 3) ) .
f. ·Proposed TFPs to support new ship classes and revisions to approved notional durations,·~ntervals, MUC factors, and mandays shall be submitted to COMNAVSEASYSCOM Logistics Directorate(SEA-04); Ship Design, Integration and Engineering Directorate (SEA-05); Undersea Warfare Directorate (SEA-07); Surface Warfare Directorate (SEA-21); applicable PEO; and SEA-08 (for nuclear-powered ships or ships with nuclear support facilities) . COMNAVSEASYSCOM shall coordinate reviews of the recommend~d revisions and provide recommendations to OPNAV (N43) and applicable resource sponsors with rationale for approval or disapproval via the applicable force commander and USFLTFORCOM.
4
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
g. Fleet alterations are programmed and budgeted as part of the TYCOM depot maintenance requirement. Fleet-funded modernization does not normally increase or add hew capabilities. Fleet alterations should address safety of personnel and or equipment, reduce total ownership cost, or replace obsolete equipment and not exceed 8 percent of the annual direct labor costs. OPNAV (N43) will publish annual fleet alteration budget guidance. In order to ensure ship depot maintenance funding is primarily used to support maintenance requirements that sustain platform service life, detailed justification that considers both the projected return on investment and the impact of fleet maintenance that will not be accomplished, is required prior to OPNAV (N43) approval of fleet alterations.
h. Enclosure (1) lists availability types, maintenance strategies, availability cycles, durations and notional mandays. Enclosure (2) lists availability type descriptions, class notes, list of regional maintenance center (RMC) ship class Ilevel requirements, and material unit costs. Enclosure (3) is a list of maintenance terms and definitions.
5. Action. TYCOMs, USFLTFORCOM, COMNAVSEASYSCOM, Warfare Enterprises, and OPNAV resource sponsors are to implement this guidance in conjunction with the detailed policy provided in references (a) through (q) .
Director, Fleet Readiness
Distribution: Electronic via e-mail to Ship Maintenance Working Group and posting to the Ship Maintenance Quickplace website
5
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE INTERVALS, DURATIONS, MAINTENANCE CYCLES,. AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
&<15 . · . · . ... ·• . .. ; .. · .
CG-47 I
PROG SRAl-1 4.0 19.2 PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 DSRAll CL SRAl-2 4.0 19.2 0 32.0 36.0 68.0 72.0 102.7 108.0
FRP 36/9 DSRAl . 5.3 32.5 NOTES 5 I SRA2-1 r 4.0 20.0 -----1 SRA2-ll -----1 SRA2-2I -----1 DMPI -----1
& 15 DMP SRA2-2 4.0 20.0 140.0 144.0 176.0 180.0 204.0 216.0 248.0 CYCLE DMP 12.0 76.5
SRA3-1 4.0 30.1 SRA3-ll -----1 SRA3-2I -----1 DSRA3I -----1 SRA4-ll SRA3-2 4.0 30.1 252.0 284.0 288.0 318.7 324.0 356.0 360.0 DSRA3 5.3 \ 55.8
SRA4-1 4.0 27.8 -----1 SRA4-2I -----1 DSRA41 -----1 SRA5-ll -----1 SRA4-2 4.0 27.8 392.0 396.0 426.7 432.0 464.0 468.0 DSRA4 5.3 55.4
SRA5-1 4.0 17.4 INAC CM 4.2
Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
CG-47 CL
(FDNF) NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG SRAl-1 3.0 N/A I
PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 SRAl-31 SRAl-2 3.0 \ N/A 0 21. 0 24.0 45.0 48.0 69.0 72.0 SRAl-3 3. 0 N/A
FRP 24/6 SRAl-4 3.0 N/A I
-----1 SRAl-41 -----1 DSRAll -----1 SRA2-ll -----1 DSRAl 4.0 N/A 93.0 96.0 116. 0 120.0 141.0 144.0 165.0
SRA2-1 3.0 21. 3 SRA2-2 3.0 21. 3 SRA2-2I -----1 DMPI -----1 SRA3-ll --- - - - I SRA3-2I
DMP CO NUS 168.0 213. 0 216.0 237.0 240 SRA3-1 3.0 31.4 SRA3-2 3. 0 31. 4 -----1 DSRA21 -----1 SRA4-ll -----1 SRA4-2I -----1 DSRA2 4.0 56.9 260.0 264.0 285.0 288.0 309.0 312.0 332.0
SRA4-1 3. 0 29.3 SRA4-2 3.0 29.3 DSRA3I -----1 SRA5-ll -----1 SRA5-2I -----1 DSRA41 DSRA3 4.0 57.2 336.0 357.0 360.0 381. 0 384.0 404.0 408.0
SRA5-1 3. 0 28.3 SRA5-2 3.0 28.3 -----1 INAC DSRA4 4.0 57.2
CM 5.6
2 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
3
PIA31 216.0
-----1 246.0
Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
DDG-51 CL.
FLT I & II
NOTE 15 I
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG SRAl-1 3.5 10.9 PSAI -----1 SRA1-1J -----1 SRA1-2J -----1 DSRAlJ SRAl-2 3.5 10.9 0 32.5 36.0 68.5 72.0 103.2 108.0
FRP-36/9 DSRAl 4. 8 59.0 SRA2-1 3.5 16.6 -----1 SRA2-1J -----1 SRA2-2I -----1 ED SRA -----1
ED SRA SRA2-2 3.5 16.6 140.5 144.0 176.5 180.0 210.0 216.0 239.8 /ESRA EDSRA 6.0 79.1 CYCLE ESRA 12. 2 15.6 ESRAJ -----1 SRA3-2I -----1 DSRA3I -----1 SRA4-1J
SRA3-2 3.5 15.6 252.0 284.5 288.0 319.2 324.0 356.5 360.0 DSRA3 4 .8 57.7
SRA4-1 3.5 13.9 -----1 SRA4-2J -----1 INAC SRA4-2 3.5 13.9 392.5 396.0 r
CM
SRA1P'l. 3 .• 5 SRA1-i~ ... . 3 • 5 DSRA:U: 4. 8
SRA2 +;'~- 3 • s SRA2""2 3 •. 5
DMP. 12.9 SRA3.""1. 3 .5 SRA3'"'.2 3 .5 DSRA3 4.8 SRA4 ... 1. 3 -~ 5 SRA4h2 3.5
CM
4 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
DDG-51 I CL
FLT IIA I
NOTE 15 I
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG SRAl-1 3.5 10.4 PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 DSRAll SRAl-2 3.5 10.4 0 32.5 36.0 68.5 72.0 103.2 108.0
FRP-36/9 DSRAl 4.8 50.5 SRA2-1 3.5 17.1 -----1 SRA2-ll -----1 SRA2-2I -----1 DMP -----1
DMP SRA2-2 3.5 17.1 140.5 144.0 176.5 180.0 203.1 216.0 256.5 CYCLE DMP 12.9 70.7
SRA3-1 3.5 15.8 SRA3-ll -----1 SRA3-2I -----1 DSRA3I -----1 SRA4-ll SRA3-2 3.5 15.8 260.0 292.5 296.0 327.2 332.0 364.5 368.0 DSRA3 4.8 49.0
SRA4-1 r 3.5 14.6 -----1 SRA4-2I -----1 DSRA4 -----1 SRA5-1 -----1 SRA4-2 3.5 14.6 400.5 404.0 427.2 432.0 464.5 468.0 DSRA4 4.8 50.2
SRA5-1 3.5 11. 8 I INAC CM 2.0
5 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
DDG-51 CL
(FDNF
Spain) NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG SRA CM
3.2 10.7 1. 8
6
DSRAI 0
-----1 21. 8
SRA! 24.0
-----1 45.8
SRA! 48.0 68.8
SRA! 72.0
Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
FFG-7 I NOTE 15
LM VER
I NOTES 1
& 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG I
DSRA
I
3.5
I
18.9 DSRAI -----1 SRAI -----1 SRAI -----1 SRAI SRA 3.0 9.7 0 21. 0 24.0 45.0 48.0 69.0 72.0 CM 2.3
-----1 DSRAI 92.5 96. 0
I
SRAl-2 3.2 10.1 0 30.8 34.0 64.8 68.0 '97.4 102.0 DSRAl 4.6 19.3
SRA2-1 3.2 12.4 -----1 SRA2-1 -----1 SRA2-2 -----1 DSRA2 -----1 SRA2-2 3.2 12.5 132.8 136.0 166.8 170.0 199.4 204.0 234.8 DSRA2 4.6 18.4
SRA3-1 3.2 13.7 SRA3-l -----1 SRA3-2 -----1 INAC SRA3-2 3.2 11.4 238.0 268.8 272.0 CM-DM 3.5 CM-PM 6.4
FM Lite . 8 FM Deep 1.1
FM CC 1. 8
7 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LHA-1 CL I NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
Phased I DPMA I 9.0
I
127.8 DPMAI -----1 PMAI -----1 PMAI -----1 PMAI Ma int PMA , 4.5 48.3 0 22.5 27.0 49.5 54.0 76.5 81. 0
CM 16.1
-----1 PMAI -----1 DPMAI 103.5 108.0 126.0 135.0
8 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
9 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LHD-1 CL (FDNF)
NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG DPMAl CO NUS I
DPMAll -----1 SRA2-ll -----1 SRA2-2I -----1 SRA2-3I SRA2-l 2.5 52.4 0 21.5 24.0 45.5 48.0 69.5 72.0 SRA2-2 2.5 62.0 SRA2-3 2.5 58.7 -----1 SRA2-4I -----1 DPMA21 -----1 SRA3-ll -----1 SRA2-4 2.5 54.0 93.5 96.0 120.0 141.0 144.0 165.0 DPMA2 CONUS SRA3-l 3.0 58.9 SRA3-2I -----1 SRA3-3I -----1 SRA3-4I -----1 DPMA3I SRA3-2 3.0 76.7 168.0 189.0 192.0 213.0 216.0 240.0 SRA3-3 3.0 64.5 SRA3-4 3.0 64.2 -----1 SRA4-ll -----1 SRA4-2I -----1 SRA4-3I -----1 DPMA3 CO NUS 261. 2 264.0 285.2 288.0 309.2 312.0 333.2
r SRA4-l 2.8 63.l SRA4-2 2.8 60.6 SRA4-4I -----1 DPMA41 -----1 SRA5-ll -----1 SRAS-21 SRA4-3 2.8 57.0 336.0 360.0 381. 2 384.0 405.2 408.0 SRA4-4 2.8 60.l DPMA4 CO NUS
I -----1 SRA5-3I -----1 SRA5-4I -----1 INAC
\ SRA5-l 2.8 55.1 429.2 432.0 453.2 456.0 SRA5-2 2.8 65.7 SRA5-3 2.8 72.6 SRA5-4 2.8 58.2
CM 16.3
10 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
11 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LHA-6 &
LHD-8 CL (FDNF)
NOTE 15
LPD-4 CL (FDNF)
NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG DPMAl CO NUS I
DPMAll -----1 SRA2-ll -----1 SRA2-2I -----1 SRA2-3I SRA2-1 2.5 54.0 0 21. 5 24.0 45.5 48.0 69.5 72.0 SRA2-2 2.5 57.1 SRA2-3 2.5 49.9
I -----1 SRA2-4I -----1 DPMA21 -----1 SRA3-ll -----1
SRA2-4 2.5 46.7 93.5 96.0 120.0 141.5 144.0 165.5 DPMA2 CO NUS
SRA3-1 2.5 51. 8 I SRA3-2 I -----1 SRA3-3I -----1 SRA3-4I -----1 DPMA3I SRA3-2 2.5 61.2 168.0 189.5 192.0 213.5 216.0 240.0 SRA3-3 2.5 60.7 SRA3-4 2.5 56.7
I -----1 SRA4-ll -----1 SRA4-2 I -----1 SRA4-3I -----1
DPMA3 CO NUS 261.5 264.0 285.5 288.0 309.5 312.0 333.5 SRA4·-1' 2.5 56.5 SRA4-2 2.5 56.5 I SRA4-4 I -----1 DPMA41 -----1 SRA5-ll -----1 SRA5-2I SRA4-3 2.5 49.1 336.0 360.0 381.5 384.0 405.5 408.0 SRA4-4 2.5 46 .,1 DPMA4 CO NUS
I -----1 SRA5-3I -----1 SRA5-4I
SRA5-1 2.5 \ 47.4 429.5 432.0 453.5 456.0 SRA5-2 2.5 61. 6 SRA5-3 2.5 52.0
2.5 I 16.LJ -- -----· -
PJ?MA.J - -- ... '.'"] Pf.1'.AI 0 24 ~i(j 27. 0
;----1 DPl\1AI 110~0
PROG DSRA 4.0 52.0 I
DSRAI -----1 SRAI -----1 SRAI -----1 SRAI SRA 3.0 29.0 0 21. 0 24.0 45.0 48.0 69.0 72.0 CM 9.5
-----1 DSRAI 92.0 96.0
12 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
13 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LPD-17 CL·
(FDNF) NOTE 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
PROG SRAl-1 3.2 25.2 I
PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 SRAl-31 SRAl-2 3.2 25.9 0 20.8 24.0 44.8 48.0 68.8 72.0 SRAl-3 3.2 27 .3 SRAl-4 3.2 27.9 -----1 SRAl-41 -----1 DSRAl -----1 SRA2-1 -----1 DSRAl CO NUS 92.8 96.0 0 20.8 24.0 44.8
SRA2-1 3.2 38.0 SRA2-1 3.2 39.0 SRA2-2 -----1 SRA2-3 -----1 SRA2-4 -----1 DSRA2 SRA2-3 3.2 36.2 48.0 68.8 72.0 92.8 96.0 0 SRA2-4 3.2 35.2 DSRA2 CO NUS -----1 SRA3-1 -----1 SRA3-2 -----1 SRA3-3 -----1
SRA3-1 3.2 40.9 20.8 24.0 44.8 48.0 68.8 72.0 92.8 SRA3-2' 3.2 41.1 SRA3-3 3.2 43.9 SRA3-4 -----1 DSRA3 -----1 DSRA4-1 ---~-I SRA4-2 SRA3-4 3.2 42.8 96.0 0 20.8 24.0 44.8 48.0 DSRA3 CO NUS
SRA4-1 3.2 28.5 -----1 SRA4-3 -----1 SRA4-4 -----1 DSRA4 SRA4-2 3.2 \ 29.7 68.8 72.0 92.8 96.0 0 SRA4-3 3.2 33.5 SRA4-4 3.2 33.3 DSRA4 CO NUS
CM 6.8
14 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
15 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LSD PROG SRAl-1 3.5 28.2 I
PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 SRAl-31 41/49 CL SRAl-2 3.5 28.2 0 20.5 24.0 44.5 48.0 68.5 72.0
(FDNF) SRAl-3 3.5 28.2 NOTE 15 DSRAl-1 4.6 52.6
I -----1 DSRAl-1 -----1 SRA2-ll -----1 SRA2-2I -----1
SRA2-1 3.5 35.9 91.4 96.0 116.5 120.0 140.5 144.0 164.5 SRA2-2 3.5 35.9 SRA2-3 3.5 35.9 SRA2-3I -----1 DSRAl-2 -----1 SRA3-ll -----1 SRA3-2I
DSRAl-2 4.6 52.6 168.0 187.4 192.0 212.5 216.0 236.5 240.0 SRA3-l 3.5 31. 9 SRA3-2 3.5 31. 9 -----1 EDPMAI -----1 SRA3-ll -----1 SRA3-2I -----1 EDPMA CO NUS 252.0 264.0 284.5 288.0 308.5 312.0 332.5
SRA3-l 3.5 33.2 SRA3-2 3.5 33.2 I SRA3-3 I -----1 DSRA21 -----1 SRA4-ll -----1 SRA4-2I SRA3-3 ' 3.5 33.2 336.0 355.4 360.0 380.5 384.0 404.5 408.0 DSRA2·' 4.6 85.7
SRA4-1 3.5 33.2 -----1 SRA4-3I -----1 DSRA3I -----1 SRA5-ll -----1 SRA4-2 3.5 33.2 428.5 432.0 451.4 456.0 476.5 480.0 500.5 SRA4-3 3.5 33.2 DSRA3 4.6 80.6 SRA5-2I
SRA5-1 3.5 \ 25.2 504.0 SRA5-2 3.5 25.2
CM 8.0
16 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
MCM-1 CL Phased SRAl-1 3.2 4.2 I
PSAI -----1 SRAl-11 -----1 SRAl-21 -----1 DSRAll (FDNF) Ma int SRAl-2 3.2 4.3 0 20.8 24.0 44.8 48.0 68.4 72.0
NOTE 15 DSRAl 4.6 13 .4 SRA2-1 3.2 8.3 -----1 SRA2-1 -----1 SRA2-2I -----1 DSRA21 -----1 SRA2-2 3.2 \ 8.4 92.8 96.0 118. 8 120.0 140.4 144.0 164.8 DSRA2 4.6 15.2 SRA3-l 3.2 6.3 SRA3-ll -----1 SRA3-2 -----1 DSRA3I -----1 SRA4-ll SRA3-2 3.2 5.7 168.0 188.8 192.0 212.4 216.0 236.8 240.0 DSRA3 4.6 17.1
SRA4-1 3.2 9.1 -----1 SRA4-2I -----1 DSRA41 -----1 SRA5-ll -----1 SRA4-2 3.2 5.7 260.8 264.0 284.4 288.0 308.8 312.0 332.8 DSRA4 4.6 15.5
SRA5-1 3.2 8.2 SRA5-2I SRA5-2 3.2 4.6 336.0
CM 3.7
17 · Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
PC-1 CL I NOTE 15
SSGN-726 CL NOTES
3,4,7 & 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
Phased Ma int
Phased Ma int
I DSRAl DSRA2 DSRA3 DSRA4 DSRA5 DSRA6 DSRA7 ., DSRA8 DSRA9
CM
ERP
4.0 8.6 4.0 9.0 4.0 8.6 4.0 13.5 4.0 9.3 4.0 9.1 4.0 9.0 4.0 9.9 4.0 8.7
5.2 36.0
I PSAI -----1
0 32.0
-----1 DSRA4 140.0 144.0
DSRA71 -----1 252.0 284.0
CONVI 120.0
18
DSRAll 36.0
-----1 176.0
DSRA8 288.0
ERPI 125.2
-----1 68.0
DSRA5I 180.0
-----1 320.0
-----1 240.0
DSRA21 72.0
-----1 212.0
DSRA9I 324.0
INAC
-----1 DSRA3I 104.0 108.0
DSRA6I -----1 216.0 248.0
-----1 INAC
Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
SSN-22 I NOTES 3,
4 & 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
Phased
I DMP UNIQUE
I DMPI -----1 DPMAll -----1 DPMA21 -----1 DPMA3I
Ma int DPMAl 3.0 55.9 0 23.3 26. 3 47.3 50.3 71. 3 74.3 DPMA2 r 3. 0 50.1 DPMA3 3.0 59.1 -----1 DSRAll -----1 DPMA41 -----1 DPMA5I -----1 DSRAl 6.0 83.8 95.3 101.3- 122.3 125.3 146.3 149.3 170.3 DPMA4 3.0 64.4 DPMA5 3.0 64.1 DPMA6I -----1 DSRA21
3.0 \ 51. 8 173.3 194.3 200.3
19 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
SSN-688 CL
688-718 NOTES 3, 4' 8' 11
& 15 SSN.~'·E)S.B
c~ :'T. '-'76'.2 s .. >,a, ,10; & 15
SSN-688 CL
763-773 NOTES 3,
4, 8' 10, 11 &
15 SSN~774
CL
4 & SSN-774
CL 776-781
NOTES 3, 4 & 15
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
EOC
EOC
EOC
DSRAl-3 DSRA3
DMP DSRA2
EOH DSRA3
EDSRAl DMP
EDSRA2 EDSRA3
5.8 5.8
13.0 5.8
19.7 5. 8 \
15.0 15.0 15.0 15.0
47.7 56.7
145.0 56.7
244.0 56.7
2p~:;':O 22.0~0
215~0
1-89.0
203.0 220.0 215.0 189.0
20
EROI 0
DMPI 0
-----1 120.0
-----1 333.0
-----1 DSRAl-3 -----1 DSRA2-3 -----1 INAC 44.8 50.6 96.1 101.9 120.0
70.2
INAC
72.0
EDSRA3j 348.0
DSRA2j 76.0
-----1 396.0
120.0
-----1 159.0
INAC
EOHI 0
DMPI 174.0
70.2 DSRA3J
76.0
EPSRA2,J 237LO
- - - - - I EDSRA2 I 246.0 261.0
Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
REPRESENTATIVE ~NTERVALS, DURATIONS, MAINTENANCE CYCLES, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES
21 Enclosure (1)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
FLEET CODES, AVAILABILITY TYPES, MAINTENANCE STRATEGIES, CLASS NOTES, LIST OF RMC SHIP CLASS I-LEVEL REQUIREMENTS, AND MATERIAL
'UNIT COSTS
FDNF FORWARD DEPLOYED NAVAL FORCES AVAILABILITY TYPES
CM CONTINUOUS MAINTENANCE ESRA EXTENDED SELECTED RESTRICTED AVAILABILITY
CIA CARRIER INCREMENTAL
INAC INACTIVATION
AVAILABILITY AVAILABILITY DOCKING EXTENDED
MMP MAJOR MAINTENANCE PERIOD
DEMA MAINTENANCE AVAILABILITY (SSGN ONLY)
DMP DEPOT MODERNIZATION
PEMA PIER SIDE EXTENDED
PERIOD MAINTENANCE AVAILABILITY DOCKING PLANNED
PIA PLANNED INCREMENTAL
DPIA INCREMENTAL AVAILABILITY AVAILABILITY
DPMA DOCKING PHASED
PMA PHASED MAINTENANCE
MAINTENANCE AVAILABILITY AVAILABILITY
DSCO DOCKING SERVICE CRAFT
PSA POST SHAKEDOWN
OVERHAUL AVAILABILITY
DSRA DOCKING SELECTED
RCOH REFUELING COMPLEX
RESTRICTED AVAILABILITY OVERHAUL
EDPMA EXTENDED DOCKING PHASED
ROH REGULAR OVERHAUL MAINTENANCE AVAILABILITY EXTENDED DOCKING
ED SRA SELECTED RESTRICTED sea SERVICE CRAFT OVERHAUL AVAILABILITY
EOH ENGINEERED OVERHAUL SRA SELECTED RESTRICTED AVAILABILITY SELECTED RESTRICTED
ERO ENGINEERED REFUELING
. SRA(d) AVAILABILITY w/ SHORT
OVERHAUL DOCKING INSPECTION ~
PERIOD (LCS ONLY) ERP EXTENDED REFIT PERIOD
MAINTENANCE STRATEGIES EOC ENGINEERED OPERATING CYCLE IMP INCREMENTAL MAINTENANCE PLAN PM PHASED MAINTENANCE
.PROG PROGRESSIVE MAINTENANCE ROH REGULAR OVERHAUL
Enclosure (2)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND_REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
NOTES:
1. LCS-1 & 2 Classes are expected to require an' abbreviated docking period during scheduled selected restricted availabilities (SRA) delineated as an SRA(d). Traditional continuous maintenance (CM) is further broken down for the classes into preventive maintenance (PM), depot maintenance (DM) and facilities maintenance (FM) as characterized by Lite, Deep and Corrosion Control methodology.
2. RCOH notionally occur at the third required docking period for CVN-68 Class. The post-RCOH management plan has been changed to increase operational availability by eliminating the 4-month SRA and post shakedown availability (PSA). Work originally executed in the SRA and PSA is incorporated into the RCOH availability work package or into a post RCOH CIA.
3. Refer to reference (b) for SSN, SSBN and ship, submersible, guided missile, nuclear (SSGN) operating cycles, maintenance strategies, and extension requirements.
4. Notional mandays and duration of submarine INAC and combined inactivation, reactor compartment disposal and hull recycling availabilities vary by hull and are determined by COMNAVSEASYSCOM In-Service Submarines Program Office (PMS 392). A submarine pre-inactivation restricted availability is a hullspecific availability used to establish a final, modified operational cycle (OPCYCLE) prior to inactivation. An interim dry-docking is a hull specific availability used to establish a modified OPCYCLE prior to overhaul. Based on the length of the abbreviated operation cycle a hull unique manday notional will be assigned.
5. The CG-47 Class DMP, ESRAs and EDSRAs are scheduled to support CG modernization availabilities.
6. For the CVN-68 Class 32 month operating cycle, each carrier OPCYCLE contains two CIAs of nominal 30 day length. Prior to each Planned Incremental Availability One (PIAl) and Docking Planned Incremental Availability Two (DPIA2), an OPCYCLE will contain two CIAls. Prior to each PIA2 and the first DPIA3, an OPCYCLE will contain two CIA2s. Prior to PIA3 and the second and third DPIA3, RCOH and INACT, the OPCYCLE will contain two
2 Enclosure (2)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
CIA3s. For the 36 month OPCYCLE one 45 day CIA is scheduled after each PIA.
7. SSGN MMPs are I-Level work and considered as CNO availabilities for scheduling purposes only. MMPs are specifically listed in the fleet availability scheduling team workload and naval shipyard capability plans. This integration will ensure they are properly entered into shipyard workload so that scheduling and execution support are entered into their employment cycles.
8. SSN-688 class operational interval is 72 months. Submarine DSRA avails vary by hull. Hull-specific CM availability (docking or non-docking) may be required to establish the 72 month operational interval.
9. Medium auxiliary repair dry-dock (non-self propelled) (ARDM) operational maintenance cycle requires a pier side SCO which includes an underwater hull survey be conducted every 5 years between a 10-year DSCO after the dry dock becomes 20 years old.
10. SSN-688 EOH durations of 19.7 months include a dual media discharge (DMD). SSN-688 Class EOHs without DMD are 238.lK mandays and 19.5 month duration.
11. SSN-688 Class on-yard DSRA durations of 5.8 months include a DMD. SSN-688 on-yard DSRA without DMD are programmed at 51.4K mandays and 5.6 month duration. SSN-688 off-yard DSRAs with DMD are programmed at 54.6K MDs and 5.8 month duration, and without DMD they are programmed at 49.3K mandays and 5.6 month duration.
12. LCC-19 Class extended service life period (2010~2017) is required for the ship to obtain a service life out to 2039. During this period, annual availability is tailored in size and duration to complete the scheduled maintenance.
a. FY-16 - EDSRA 44.2K mandays at 26 weeks duration
b. FY-17 - ESRA 14.2K mandays at 12 weeks duration
13. CVN-68 Class baseline maintenance nationals vary by location due to differing service and environmental compliance costs. Nationals shown on the chart in enclosure (2) are
3 Enclosure (2)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
specific to the Norfolk region. POM-16 Ship Sheets will reflect geographic differences from the Norfolk region. CVN-78 Class baseline maintenance nationals and the 12-year dbcking interval result in about 20 percent reduction in CNO availability maintenance requirments when compared to the CVN-68 class over the in-service life of the ship. The requirements will continue to be refined as the CVN-78 class maintenance profile matures.
14. With the exception of the FDNF CVN the CVN-68 Class will complete transition to the 36 month cycle by the close of their FY-15 availabilities or before with the following exceptions.
USS DWIGHT D EISENHOWER (CVN-69) FY-16 PIA3 USS THEODORE ROOSEVELT (CVN-71) FY-16 PIA2 USS ABRAHAM LINCOLN (CVN-72) FY-17 CIA
15. NAVSEASYSCOM 8010 Manual established increased fire prevention and safety requirements for all CNO availabilities. Current recommended manday increases in the table below have been added to the individual POM-16 ship sheets and will be incorporated into class technical foundation papers as they are updated. Additionally a one percent increase in RMC and CM nationals was added to compensate for 8010 Manual requirements.
CIA 110
NAE CVN 68/78 PIA 975
DPIA 1950 SRA 775
SWE ALL ALL 234
SSBN ERO 2500 ERP 900
SSGN ERP 900 EDS RA 2200
USE SSN 21 DSRA 800
DPMA 800
SSN 688 DSRA 800 EOH 2500
SSN 774 EDS RA
DMP 2200 2250
MTS PEMA 100 DEMA 1535
4 Enclosure (2)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
2016 NAE $161. 61 N/A $161. 61 N/A
2016 USE $126. 81 * N/A N/A $227.92
2016 SWE $124. 05 $221. 72 $223.29 N/A
*Varies by submarine availability type.
AFDL 6 275 13 301 0 589 AFDM 7 0 28 1,102 0 1,130
ARDM 1,070 0 742 0 1,812 CG 47 3,512 1,360 1,382 1,056 7,312
CVN 68/78 1,833 1,465 2,644 0 5,942 DDG 51 1,986 873 856 1,023 4,738
DDG 1000 3,949 1,330 2,304 1,023 8,606 FFG 7 3,208 1,339 319 455 5,321
LCC 19 2,269 782 1,905 674 5,653 LCS 1 1,608 517 1,674 405 4,220 LCS 2 1,608 517 1,759 405 4,305 LHA 1 3,514 1,168 2,204 1,040 7,926 LHA 6 3,514 1,168 2,204 1,040 7,926 LHD 1 2,292 1,174 2,537 1,040 7,043 LHD 8 2,292 1,174 2,537 1,040 7,043 LPD 4 2,139 584 819 646 4,188
LPD 17 3,055 698 1,150 646 5,549 LSD 41 3,055 933 1,604 685 6,277 LSD 49 2,139 759 1,604 685 5,187 MCM 1 917 441 760 317 2,435
MCM 1 (N) 1,222 441 760 317 2,740 PC 1 764 200 ~416 236 1,616
SSBN 726 27,065 81 0 0 27,146 SSGN 726 27,065 58 0 0 27,123
SSN 21 24,432 3,000 816 0 28,248 SSN 688 7,814 1,261 34 0 9,109 SSN 774 7,814 630 74· 0 8,518
5 Enclosure (2)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
LIST OF MAINTENANCE TERMS AND DEFINITIONS
1. Carrier Incremental Availability (CIA). An availability for continuous accomplishment of depot maintenance and selected modernization on CVN-68 class aircraft carriers.
2. Continuous Maintenance (CM). Scheduled depot level maintenance conducted outside of CNO availabilities. CM for surface ships includes average unfunded technical requirements by ship class spread over a 4-year period.
3. Depot Modernization Period (DMP). A major availability scheduled primarily for the installation of high priority warfare improvement alterations.
4. Docking Extended Maintenance Availability (DEMA). Depot availability for moored training ships (MTS) for the accomplishment of maintenance and modernization that requires docking.
5. Docking Phased Maintenance Availability (DPMA). A PMA expanded to include maintenance and modernization that require dry-docking.
6. Docking Planned Incremental Availability (DPIA). A laborintensive dry-docking availability, with a duration of 16 months or less, for aircraft carriers in an IMP. Maintenance and modernization are accomplished. Aircraft carriers assigned to IMPs are maintained through CIAs, PIAs, and DPIAs in lieu of overhauls.
7. DocRing Service Craft Overhaul (DSCO). A major industrial docking availability for the accomplishment of maintenance and modernization on service craft.
8. Docking Selected Restricted Availabilities (DSRA). An SRA expanded to include maintenance and modernization that require dry-docking.
9. Engineered Operating Cycle (EOC). This maintenance philosophy keeps ships in an acceptable material condition while sustaining or inc~easing the A0 of the ship, and is earmarked by a structured engineered approach for ship maintenance while
Enclosure (3)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
minimizing the time spent in depot-level availabilities. Major elements of the maintenance strategy include:
a. Periodic inspections of selected systems and equipment to identify and document necessary repair requirements and material condition trends.
b. Periodic maintenance tasks to be accomplished at specifi~d times during the ship's life cycle.
c. Scheduled intra-cycle depot level intermediate maintenance availabilities, DSRAs, SRAs, and ROHs to accomplish the maintenance and modernizations required to sustain or improve the material condition of the ship.
d. Extensive modernization to maintain and upgrade the ship class war fighting capability.
10. Engineered Periodicities. The recommended periodicity for accomplishment of a maintenance action based upon an engineering analysis of all relevant technical maintenance history information including material condition and performance feedback data.
11. Extended Docking Phased Maintenance Availability (EDPMA). A DPMA expanded to include maintenance and modernization that cannot be accomplished in a DPMA.
12. Extended Docking Selected Restricted Availability (EDSRA). A DSRA expanded to include maintenance and modernization that cannot be accomplished in a DSRA.
13. Extended Refit Period (ERP).~ A labor-intensive period typically lasting 4 to 5.2 months, during which SSBNs and SSGNs accomplish maintenance and modernization which cannot be completed during a normal refit period.
14. Extended Selected Restricted Availability (ESRA). An SRA expanded to include maintenance and modernization that cannot be accomplisped in an SRA.
2 Enclosure (3)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
15. Inactivation Availability (INAC). An availability assigned to prepare a ship for inactivation or disposal. The scope of work depends on the planned disposition of the ship.
16. Incremental Maintenance Plan (IMP). A maintenance philosophy which ensures aircraft carriers are kept in an acceptable material condition through a series of incremental depot maintenance actions. Types of availabilities under this mainten~nce philosophy include CIAs, PIAs, and DPIAs.
17. Interim Dry-Docking (IDD). A hull specific availability used to extend the operating cycle prior to the next major maintenance availability.
18. Major Maintenance Period (MMP). A non-CNO availability for SSGNs for the accomplishment of maintenance and modernization.
19. Maintenance Resource System (MRS). Surface ship historical data for completed CNO availabilities, deferred maintenance and CM.
20. Overhaul (OH). A major availability normally exceeding 6-months duration for the accomplishment of maintenance and modernization. Types of overhauls include:
a. Regular, Complex, or Engineered Overhaul Availability (ROH, COH, EOH) and DMP. These describe or identify planning and execution differences among overhaul availabilities of different ship classes.
b. Refueling Complex or Engineered Refueling Overhaul Availability (RCOH or ERO) . These describe or identify fundamental planning and execut~on differences among overhaul availabilities of different nuclear powered ship classes during which the reactor is also refueled.
21. Pierside Extended Maintenance Availability (PEMA). An onsite depot availability for MTSs for the accomplishment of maintenance and modernization.
22. Pre-Inactivation Restricted Availability (PIRA). A hull specific availability assigned to.establish a final, abbreviated OPCYCLE prior to inactivation.
3 Enclosure (3)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
23. Phased Maintenance (Phased Maint). This maintenance philosophy uses depot level maintenance through a series of short, frequent availabilities in lieu of ROHs. , The goals of PM are to maximize ship availability, improve operational readiness, and upgrade material condition. Major elements of this maintenance strategy include:
a. Execution of availabilities in the ship's homeport. Ships a;r-e scheduled for PMAs of 2 to 6 months at regular intervals which include both repairs and modernization.
b. Adherence to condition-based repair in which repair and replacement is determined by the actual material condition of systems and equipment. Only those repairs necessary to sustain proper functioning of equipment are identified and authorized for accomplishment.
c. Involvement of port engineers in the planning, budgeting, authorizing, and execution of all maintenance actions and remain with the same ships through their cycle.
d. Preservation of repair decision approval authority in the ship's commanding officers, port engineers, and Supervisor of Ship Building, Conversion & Repair.
e. Use of multi-ship/multi-year contracts to ensure production contractor participation in the advance planning process as it is difficult to fully define all work in the condition based maintenance environment. ·""
24. Phased Maintenance Availability (PMA). A short laborintensive availability for ship~ in a PM program for the accomplishment of maintenance and modernization. Ships assigned to PM programs are maintained through PMAs in lieu of overhauls.
25. Planned Incremental Availability (PIA). A labor-intensive availability with a duration of 6 months or less for aircraft carriers in an IMP. Maintenance and modernization are accomplished. Aircraft carriers assigned to IMPs are maintained through CIAs, PIAs, and DPIAs in lieu of overhauls.
26. Post Shakedown Availability (PSA). An availability assigned to newly built, activated or converted ships upon
4 Enclosure (3)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
completion of post-delivery shakedown. PSAs will be scheduled so they are completed no later than the end of the Shipbuilding and Conversion, Navy (SCN) obligation work limiting date, which is the date on which SCN funding and work authority terminates. Work performed shall normally include correction of defects noted during shakedown, correction of deficiencies remaining from the acceptance trials, and performance of class modifications remaining from the new construction activation or conversion period.
27. Progressive Maintenance (PROG). This maintenance philosophy is designed to support ships with reduced manning, limited organizational level maintenance, and operational tempos that limit availability periods. It is also designed to sustain a high level of readiness and increase the ship's availability for required operations. Ships with reduced manning are designed for major component removal and replacement. To compensate for the reduced manning and other shipboard maintenance, off-ship component refurbishment is done by intermediate and depot level activities. This concept requires maintenance and logistic support systems significantly different from those required for conventionally manned surface ships. Major elements of the maintenance strategy include:
a. Engineered maintenance planning.
b. Progressive overhaul.
c. Upgrading of maintenance tasks from ship's force to the intermediate maintenance activity.
d. ·Modular replacement.
e. Dedicated material support and increased stock-level procurement.
28. Service Craft Overhaul (SCO). A major industrial availability for the accomplishment of maintenance and modernization on service craft.
29. Selected Restricted Availability (SRA). A labor-intensive industrial period.assigned to ships in PROG or EOC maintenance programs for the accomplishment of maintenance and selected
5 Enclosure (3)
Subj: REPRESENTATIVE INTERVALS, DURATIONS, AND REPAIR MANDAYS FOR DEPOT LEVEL MAINTENANCE AVAILABILITIES OF U.S. NAVY SHIPS
modernization. Ships assigned to PROG programs are maintained through SRAs in lieu of overhauls.
30. Selected Restricted Availability docking (SRA(d)). A labor-intensive industrial period assigned to LCS-1 & 2 class for the accomplishment of maintenance and selected modernization which includes an approx. 12-14 day docking period intended for the inspection of water jets, seals and underwater running gear. LCS cla,ss is maintained through SRA (d) s in lieu of overhauls.
31. Ship Class Maintenance Requirement. A class maintenance requirement with calculations based on ship age and individual ship maintenance actions input into each ship's maintenance and material management system. Inputs are trended based on multiple year data to derive future estimated requirements in maintenance man-hours of labor per ship class. Output aids in determining required manning at regional maintenance (I-level) facilities.
32. Ship Sheets. Document the maintenance requirement by ship and availability over the Future Years Defense Program. Ship sheets are developed using the TFP nationals as a baseline and are adjusted based on deferred lifecycle requirements. Ship sheets are developed by the life cycle planning activities Surface Maintenance Engineering Planning Program (SURFMEPP), the Carrier Planning Activity (CPA) and the Submarine Maintenance Engineering Planning and Procurement Activity (SUBMEPP) and are reviewed by the cognizant technical authorities and provided to OPNAV (N43) .
33. Technical Foundation Paper (TFP). Class specific baseline life cycle maintenance requirem~nts developed using historical maintenance analysis, current class maintenance studies, operational results and projected preservation trends. Inputs are periodically reviewed by life cycle planning organizations (SURFMEPP, CPA and SUBMEPP) and are reviewed by the cognizant technical authorities and provided to OPNAV (N43).
6 Enclosure (3)