Christopher Smith Director, Condition Based Maintenance...Into CBM Data Warehouse 4 VSAT Scheduled Maintenance Preventive Maintenance Process and Display DSC/HMU Data BN Production

Christopher SmithDirector, Condition Based Maintenance

• Remaining Useful Life Calculation• Inspection Targeting• Mission-Based Forecasting

• CI / HI Development• Flight Line Diagnostics• Institutionalized Training

• Digital Source Collector Installation• Health Monitoring Unit (HMU) Installation• Knowledge Development

AMCOM CBM+

CBM Program Objectives:

• Decrease Maintenance Burden on the Soldier

• Increase Platform Availability and Readiness

• Enhance Safety

• Reduce Operations & Support (O&S) Costs

Main Rotor HubMain Rotor ShaftBifilarsSwashplate ASSYSwashplate GuideSwashplate Bearing**PC Links

M/R SpindleSpherical BearingM/R Spindle Tie RodControl HornM/R Shaft ExtenderM/R Damper

T/R BladeT/R Pitch Change HornPC Links

Main Transmission ModuleAccessory ModuleGenerators (2)Hydraulic Pumps (2)Planetary Carrier

Engine (No. 1 & 2)Driveshafts (2)**Input Modules (2)

Tail Rotor GB**Retention Plates (2)Gearshaft

Viscous Bearings (4)**

M/R BladeM/R Blade Tip CapM/R Blade Expandable PinM/R Blade Cuff

Oil Cooler Axial FanOil Cooler Fan Bearing**APU

T/R Pitch Change ShaftT/R Pitch Change Bearing

Intermediate GB**

T/R Driveshafts (7)**

VibrationAbsorbers (2)Key CBM Enablers

• Digital Source Collectors• Health Monitoring Units• Flight Line Diagnostics• Data Fusion/Analysis

PREVENTIVE INDICATORS DIAGNOSTICS PROGNOSTICS ON-CONDITION

The purpose of Army Maintenance is to generate Combat Power. AR 750-1

Presenter

Presentation Notes

Army Aviation is undergoing an unprecedented transformation through Condition Based Maintenance Plus (CBM+), a predictive, proactive and reliability-centered maintenance program. CBM+ uses embedded monitoring devices and sensors that perform like an EKG to provide maintainers and flight crews information on aircraft systems’ "health". This knowledge gives commanders and Soldiers the ability to more effectively support mission requirements via proactive, planned maintenance. CBM Program Objectives: Decrease the Maintenance Burden on the Soldier: CBM will move aviation maintenance out of the industrial age and into the information age. The same enhanced decision making ability that information technology brings to our everyday lives will enable our aviation maintainers to assess the near-real time health of their aircraft and make informed decisions about their maintenance planning. Increase Platform Availability and Readiness: For a given amount of resources (aircraft, manpower, major repair parts) CBM gives more available aircraft with greater probability of mission completion (mission reliability). Combined, these equate to greater readiness for the same level of investment. Enhance Safety: It goes without saying that if you can see impending failure in a part that is critical to flight safety, that this knowledge will prevent accidents. The focus here is to save lives, but if we save the cost of the aircraft or a major repair, that is good too. Reduce Operations & Support (O&S) Costs: Today, we manage flight critical parts by assuming they will fail. We assign a probability to those failures, based on usage, and remove those parts before we reach that probability threshold. This causes us to throw away useful component life because we would rather be conservative and safe. We want to reclaim that component life without jeopardizing safety. With CBM, we are able to watch components degrade over time. We can detect and classify near-real time component degradation and see if the failures we assumed would happen are actually happening. In the few cases we have been able to work so far, we have found that our assumptions were very conservative. This has enables us to keep a few parts on aircraft longer. If you do not have to replace it as often, you do not have to buy as many.

Enabling the Weapon System

For Every 20 CBM-Equipped Aircraft, Equivalent to 1 More Available for Missions

DSC Fielding Through 7 SEP 11

CBM Generating Combat Power •4-12% NMC Reduction•12-22% Class IX Cost Reduction

•5-8% Increase in Readiness

•1-4% Reduction in Maintenance Test Flight

•1 Less Mission Abort Per 100 Flt Hrs

•Avoided 4 Class A (Major) Mishaps

Presenter

Presentation Notes

PIPP: End of FY10 492 total aircraft will be CBM equipped. AH-64D: 120 aircraft UH-60A/L: 243 aircraft CH-47D: 68 aircraft OH-58D: 61 aircraft Note: 66% CBM Equipped of AH-64D is based on total number of AH-64 A & D. There are 537 AH-64D which equals 75% CBM equipped and EOY FY10 will be 98% CBM equipped. OIF AH-64D, 88 A/C, 88 equipped = 100% 1-227th CH47D, 40 A/C, 24 equipped = 60% UH-60A, 92 A/C, 54 equipped = 58% UH-60L, 106 A/C, 46 equipped = 43% OH-58D, 60 A/C, 9 equipped = 15% OEF AH-64D, 74 A/C, 74 equipped = 100% 1-3 ATK (24); 1-82nd (26); 3-101st (24) CH-47D, 14 A/C, 8 equipped = 57% UH-60A, 29 A/C, 23 equipped = 79% UH-60L, 60 A/C, 42 equipped = 70% UH-60M, 30 A/C, 30 equipped = 100% OH-58D, 60 A/C, 2 equipped = 0%

Enabling the MaintainerPlatform Data Diagnostics &

Decision SupportCorrective

Maintenance Action

User’s Must Transmit Data in Order for CBM

to be Effective

CBM Operational EnvironmentIn Theater

VSAT

CAISI Wired/Wireless

BN ULLS-A Servers

RemovableMedia/Wired

CAISI – Combat Support Systems Automated Information System Interface DSC – Digital Source CollectorIVHMS– Integrated Vehicle Health Maintenance SystemJTDI – Joint Technical Data IntegrationULLS-A – Unit Level Logistics System – AviationVSAT – Very Small Aperture Terminal

Top-Tier Server at Redstone Arsenal

At National

Analysisand

Decision Support

IMMC

PM and OEMFile Server

CBM Data Warehouse






BN IVHMSServer


CI DevelopmentFailure AnalysisFlight RegimesPart Re-engineeringAirworthinessRelease (AWR)

Presenter

Presentation Notes

Net Centric Maintenance Process

Digital Source Collectors (DSC)1. Suite of Sensors and LRU (MSPU, ECA, IV-HMS)2. Monitor Component Health (“EKG” of Systems Health)

JTDITop Tier Server

1

At Platform Work Stations1. Transfer DSC Data & Processed Information

to ULLS-A(E)2. Immediate Action Information

2

Engineering AnalysisComponent Health and Remaining Life

5

Data LoadedInto CBM Data Warehouse

4

VSAT

Scheduled Maintenance

Preventive Maintenance

Process and Display DSC/HMU Data

BN Production Control 1. Plans Maintenance Activities 2. Collates Unit Data 3. Portal Into STAMIS

3

Prognostics

Flight Regimes CI Development

Failure AnalysisData Warehouse

LIW

•IETM Updates•QDR Requests

•Aircraft Watch List• Threshold Updates

•Safety of Flight MSG•Maintenance Changes

•Aircraft Health Status

ActionableMaintenance & Supply

InformationReturned to Unit

6

A Net Centric Maintenance Environment Supports the Collection, Transmission, and Storage of Important Health Data to Improve Maintenance

Presenter

Presentation Notes

CBM is a maintenance transformation initiative spanning from the weapon system at the tactical/operational level to the National Enterprise. The CBM Operational view portrays an end-to-end process and the key components essential to executing data movement from on-board the platform Digital Source Collectors (DSC) to the aircraft notebook, up to the battalion server and to the Aviation and Missile Data Warehouse. AMCOM in partnership with the Joint Technical Data Integration (JTDI) Program, a Naval Air Systems Command (NAVAIR) program, is the technical enabler for data movement across the Enterprise, and is also expanding across the Navy and Air Force in support of their CBM initiatives. Among our challenges within the end-to-end process includes dependency on programs and missions that we don’t control or own to include satellite availability (unit authorized, and if so, operational?); bandwidth availability (limited access with multiple users); adequately skilled personnel equipped and trained to perform procedures involving multiple logistics and communication protocols; and prioritization to perform these functions at the unit level. The AMCOM G3 CBM Office is actively working all of these challenges in partnership with key Army organizations to include DA G3/4, TRADOC, AMRDEC, and various combat and materiel developers to enhance technology and training targeted at these issues. AMCOM’s objective is to standardized and institutionalize this end-to-end process as we align to and interface with the Materiel and Logistics Enterprise.

Failure Mode 1(ex. Spalling)

Failure Mode 2(ex. Corrosion)

Failure Mode 3(ex. Crack)

Failure Mode 4

Failure Mode 5...

Failure Mode N

Sensors Algorithms Actions

Vibration Do Nothing

Temp Inspect

Oil Debris Repair

Pressure Replace

CBM Data AnalysisRCM Data Analysis

1 per Million Flight Hours

RIMFIRE Depot Teardown Data

Form 2410

Failure Mode = Spalling

FieldInspection

Vibr

atio

nTime

ReplaceRelevant

NotRelevant

ConditionIndicators

&Health

IndicatorsFMECAFailure Modes,

Effects and Criticality Analysis

QDR(SF-368)

Data Analysis MethodDiagnostics for the Connected Maintainer: Begins with Analyzed & Correlated Data

Presenter

Presentation Notes

The Analysis process turns the collected, transmitted and stored data into actionable knowledge for the field level maintainer. The data in and of itself is not necessarily meaningful until it can be turned into this actionable knowledge. The Analysis process is split into two areas: Reliability Centered Maintenance Analysis determines which failure modes, by component, are the highest cost and maintenance drivers. This analysis operates on disparate sources of information, such as the original FMECAs from the OEMs, 2410 data, field inspections and depot teardowns. Failure modes judged to occur more frequently than 1 per million flight hours are relevant to airworthiness and must be mitigated through maintenance processes. Condition Based Maintenance Analysis is the process by which those failure modes are sensorized, quantized into health indicators and finally linked to a maintenance action. This process is inherently iterative; as failure modes are discovered on monitored aircraft algorithms and serviceability thresholds are adjusted through DSC software upgrades.

PM CBM Working GroupsDirect Connection: Maintainer/PM

CBM Working Groups Provides Feedback to the Unit

MSPU

Watch List

Tear Down Analysis

CI Refinement

PM, AED, ED, IMMC, OEM

IVHMU

Maintenance Recommendation

AED

PM

Remove / Replace

Continue Operation

Order Component

Remove at Scheduled

Maintenance

TeleComwith WG

DSC DataTransmit

Unit

Presenter

Presentation Notes

New infrastructure in place for a collaborative analysis process to assist units by providing additional engineering analysis for maintenance recommendations Components on the watch list, recommendations are provided by PM Working Group to either replace now or

Implementing Tactics, Techniques & Procedures

Challenge to Implementing Net-

Centric Maintenance:TRAINING

Where Are We Going

We are working to:• Take Advantage of the CBM Momentum to

Derive Solutions to Benefit the Soldier• Facilitate Data Exchange from the Field

After Each Mission Day• Communicate with Field Maintainers• Relate Benefits to Metrics and ROI• Institutionalize RCM

Challenges

You Can Help By:• Sending Data on a Regular Basis• Calling Into PM/CBM Working Groups• Soliciting your LAR Support to Assist with

CBM Issues, Questions, or Concerns• Point of Contact at IMMC CBM Office:

James D. [email protected]

Questions

Backup

Program Objectives:

• Decrease Maintenance Burden on the Soldier

• Increase Platform Availability and Readiness

• Enhance Safety

• Reduce Operations & Support (O&S) Costs

The purpose of Army Maintenance is to Generate Combat Power (AR 750-1) CBM Generates Combat Power •4-12% NMC Reduction•12-22% Class IX Cost Reduction•5-8% Increase in Readiness

Preventive – Indicators – Diagnostics – Prognostics – On-Condition

CBM is Transforming MaintenanceTime/Process-Based – Reliability Centered Maintenance – Product Lifecycle Management – Total Life Cycle Systems Management

Key CBM Enablers• Digital Source Collectors• Flight Line Diagnostics• Data Fusion/Analysis

Over 62% of the Aviation fleet (2121 of 3434 aircraft) CBM equipped.

AMCOM CBM+

Presenter

Presentation Notes

Army Aviation is undergoing an unprecedented transformation through Condition Based Maintenance Plus (CBM+), a predictive, proactive and reliability-centered maintenance program. CBM+ uses embedded monitoring devices and sensors that perform like an EKG to provide maintainers and flight crews information on aircraft systems’ "health". This knowledge gives commanders and Soldiers the ability to more effectively support mission requirements via proactive, planned maintenance. CBM Program Objectives: Decrease the Maintenance Burden on the Soldier: CBM will move aviation maintenance out of the industrial age and into the information age. The same enhanced decision making ability that information technology brings to our everyday lives will enable our aviation maintainers to assess the near-real time health of their aircraft and make informed decisions about their maintenance planning. Increase Platform Availability and Readiness: For a given amount of resources (aircraft, manpower, major repair parts) CBM gives more available aircraft with greater probability of mission completion (mission reliability). Combined, these equate to greater readiness for the same level of investment. Enhance Safety: It goes without saying that if you can see impending failure in a part that is critical to flight safety, that this knowledge will prevent accidents. The focus here is to save lives, but if we save the cost of the aircraft or a major repair, that is good too. Reduce Operations & Support (O&S) Costs: Today, we manage flight critical parts by assuming they will fail. We assign a probability to those failures, based on usage, and remove those parts before we reach that probability threshold. This causes us to throw away useful component life because we would rather be conservative and safe. We want to reclaim that component life without jeopardizing safety. With CBM, we are able to watch components degrade over time. We can detect and classify near-real time component degradation and see if the failures we assumed would happen are actually happening. In the few cases we have been able to work so far, we have found that our assumptions were very conservative. This has enables us to keep a few parts on aircraft longer. If you do not have to replace it as often, you do not have to buy as many.

CBM+ Overview

Program Objectives

• Decrease Maintenance Burden on the Soldier• Increase Platform Availability and Readiness• Enhance Safety

• Reduce Operations & Support Costs

Success Stories

• 4 aircraft Class A Accidents Avoided ~ $49M• 57 UH60/AH64 engines not replaced ~$27M• 6-9% decrease in aircraft maint non-avail• Reduced Operations & Support Costs

• Abrams TIGER Project –1400 hours between Depot repairs, fewer new parts, less disassembly/assembly, reduced Depot time

Transmission Pipeline Satellite Fed Ex Mail NIPR

Five CBM Domains

Collection1

Transmission2

ExtractTransform

Load

Analysis4

SupplyEngineering

Other

Action/Decision5

Maintenance TTP Inspection Remediation Part Re-engineering Airworthiness Release (AWR) Supply Optimization

Overarching Architecture Compliance

Warehousing3OEM

CBM DWH T&E

PM Flt Mgt SysIMMC

LOGSA Academia

Improved diagnostics Maintenance actions based

on component health Reduced MMH Planned maintenance

– Unscheduled vs. Scheduled

Flight Line Decisions

OIF/OEFCONUSOCONUS

OEMLCMC

DSC Data– UH-60– AH-64– CH-47– OH-58

ULLS-A (E) Component

Historical data (2410)

Dire

ct F

undi

ng a

nd S

&T L

ever

age

What Does it Do?Digital Source

CollectorDiagnostics

Decision SupportCorrective

Maintenance Action

User’s Must Transmit Data in Order for CBM

to be Effective

The Six CBM Functions1. Rotor SmoothingContinual assessment/correction of rotor induced vibrations to ensure a smoother flying aircraft, limiting component damage and aircrew fatigue.

Reduces maintenance burden by reducing the frequency of maintenance test flights, increasing mission readiness.

2. Drive Train HealthProvides increased awareness of drive train health, increasing flight safety and aircrew confidence.

Enables more accurate maintenance management and enhancing logistics planning to always be ready for the mission.

5. Exceedance MonitoringPost-flight data analysis of parametric data (vibration, torque, speed, temperature, and pressure).

Provides more accurate assessment of actual exceedance values, reducing human error.

3. Engine HealthPre-Flight Power Assurance check utilizing engine data already recorded on the aircraft.

Increased accuracy and repeatability for mission planning, reduction in routine engine performance checks, and data trending to optimize scheduled engine maintenance.

6. Logbook InterfaceAutomated population of computerized forms and records, downloading CBM data to flightline analysis software.

4. Structural HealthFatigue Life Management / Damage Fraction for component re-lifing based on actual usage and remediation to extend TM/DMWR damage limits.

Presenter

Presentation Notes

CBM+ is changing maintenance practices – simplified maintenance equals more effective manhours. Rotor Smoothing: Reducing vibration due to rotor system imbalance. This capability alone will pay for system installation on AH-64 and CH-47 aircraft in 5-8 years. Exceedance Monitoring and Engine Health: Because maintainers have the ability for post-flight data analysis they have avoided approximately $24 million dollars in unnecessary T700 engine overhauls. Drive Train Health: We have been able to extend some TBOs and inspections and even give 25-50 flight hour prognostic warning of impending AH-64 nose gearbox chip lights. Structural Health: CBM Growth path to apply ‘damage fractions’ to components as a result of degree of use, vice across-the-board decrements. Logbook Interface: The ability to automatically populate the computerized forms and records system, and download CBM data to flightline analysis software. Mission abort rates in CBM+ equipped units are dropping to close to zero – units in combat are flying thousands of missions with no maintenance aborts. In the special operations aviation community alone, the benefit of simplified rotor track and balance has saved enough flight time to equal another operational aircraft.

DSC Installation

1 – End of Year FY11 Fleet Density2 – 75% (2734 DSC aircraft) of total fleet based on end of year FY12 fleet inventory (3624)* AH-64A will be equipped when modified to AH-64D Block III configuration.** CH-47F DSC installation will begin 2013

Aircraft Type

Total # of Aircraft DSC Equipped Percent

CompletePercent

Complete EOY FY11

Percent Complete EOY FY12

AH-64 A* 104 0580 80% 81% 84%

AH-64 D 621 580

CH-47 D479

132190 40% 41% 55%CH-47 F** 0

MH-47 G 58

UH-60 A

2016

551

1451 72% 72% 77%UH-60 L 525UH-60 M 350MH-60 L 15MH-60M 10

MH-6 51 15 29% 29% 59%OH-58 D 326 207 63% 64% 80%

TOTAL 3546 1 2443EOY FY11/2459 65% 69% 75% 2

DSC Fielding Through 7 SEP 11

Presenter

Presentation Notes

Total # Aircraft = Last Update on Fleet Inventory PIPP: End of FY11 ~ 459 total aircraft will be CBM equipped. AH-64D: 29 of 72 installs, EOY FY11 total 602/621 64D (97%) AH-64 A/D:EOY FY11 total 602/725 (83%) C/MH-47D/G:25 of 26 installs, EOY FY11 total 132/319 47D (41%), 58/59 47G (98%), 190/378 (50%) H-47D/F/G:189/479 (39%), EOY FY11 total 190/479 (40%) UH-60A/L:171 of 300 installs, EOY FY11 total 1485 60A/L equipped CH-47D: -- 26 installs, total 132 47D / 58 47G equipped (40%) OH-58D: -- 61 installs, total 165 58D equipped PIPP: End of FY12 --- ~ 389 total aircraft will be CBM equipped. AH-64D: --- 0 installs UH-60A/L: --- 111 installs, total 1633 60A/L equipped CH-47D: -- 96 installs, total 228 47D / 58 47G equipped (60%) OH-58D: -- 165 installs, total 336 58D equipped Start of FY10, 2051 total equipped, FY11 PIPP 563 equipped = 2614 total equipped 76% of fleet, FY12 PIPP 350 (PLAN) equipped =2964 total equipped 86% of fleet.

DCO Connect Utility• DCO Connect is a lightweight, two-way, audio-visual tool• Enables communication with Engineering Technical Support.• ETS personnel are able to provide maintenance assistance,

helping to return the system to an operational status.

Screen shot using chat, videoand white board

Screen shot using chat, and desktop sharing

Presenter

Presentation Notes

Add Tech cam session video file for about 20 – 30 seconds

Army Aviation System Impact

• 573 (92% of AH-64D Fleet) DSC Equipped• 93 Monitored Components• 58 Maintenance Tasks Eliminated• 9.1% Fewer Mission Aborts / 100 Flight Hours

• 189 (40% of C/MH-47D/G Fleet) DSC Equipped

• 163 Monitored Components• 4.0% Reduction in Flight Hours Dedicated to

MTF

• 174 (52% of OH-58D Fleet) DSC Equipped• 14 Monitored Components• Significant MMH Reduction in RTB and

Engine Vibration

• 1314 (68% of M/UH-60A/L/M Fleet) DSC Equipped

• 108 Monitored Components• 9.2% Reduction in NMC-M• 59 Maintenance Task Changes Increasing

Aircraft Availability

For Every 20 CBM-Equipped Aircraft, Equivalent to 1 More Available for Missions

Decrease in Maintenance Cost & Soldier Burden

• Maintenance Test Flight Reduction 1-4%

• Over 127 Maintenance Procedures Improved or Eliminated

Gains in Readiness and Combat Power

• Experienced 3.8%-12.4% NMCM Reduction

• 1 Less Mission Abort Per 100 Flt Hrs

• 5-8% Increase in Readiness

Enhanced Safety• Avoided 4 Class A (Major)

Mishaps

• Predicted To Avoid 11-12 Additional Class A Mishaps Over Next 10 Years

“Captive Carry hours impact HELLFIRE performance and drive repair and RESET activit ies by replacing Guidance Systems only when usage indicates.

Pareto Plot of Defects - HFIIFY07 445 U.S. ARMY HELLFIRE RESET

245 AUR (HFII) Repair Pareto

40

19 1715

12 117 7

5 3 31 1 1 1 1 1

05

1015

202530354045

Gui

danc

eSe

ctio

n

Dom

e

Ref

urbi

sh

Har

ness

/Cab

leC

over

Aft

Plat

e

Fin

Con

tain

erM

arki

ngs

Inte

rmed

iate

Shoe Con

trol

Sect

ion

War

head

CIA

CC

A

Rea

r Sho

e

Dam

aged

Con

tain

er

Roc

ket M

otor

Bat

tle D

amag

e(B

ER)

Wat

er D

amag

e(B

ER) W

ing

Based on repair data from 86 HELLFIRE II RESET missiles (145

failure modes)

High Usage Rate

$14.9M Cost savings over 3 years= Potential to Eliminate Many $M in Unnecessary Guidance System Replacements

Army Missile System ImpactArmy Missile Systems

(AGM-114 Hellfire)

Propulsion•Continuous power assurance•PHM for rotating components•Power management

Drive and Mechanical Systems•Gear fault detection •Wear detection prognostics •Non-metallic debris monitoring •Corrosion detection

Electrical/Electronic Systems•Wiring prognostics/chafing•Electrical component prognostics•Electronic power supply prognostics

Structures•Corrosion detection•Damage detection Rotors & Hub Components

•Hub component diagnostics •Blade damage detection •Usage monitoring-direct load measurement•Acoustic rotor blade delamination robot

Flight Controls and Hydraulics•Mechanical controls prognostics •Pump and Actuator prognostics•Hose chafing detection

System Integration

Purpose: Develop and demonstrate diagnostic, prognostic, and system health assessment technologies to enable transition to Condition Based Maintenance

Technology ImprovementsAMRDEC S&T is Working Technologies Across Entire Fleet

Presenter

Presentation Notes

S&T efforts are well synchronized within the Government and industry. There are numerous activities ongoing throughout the Government and industry—we are leveraging these efforts. S&T Plan addresses senior leadership guidance to work cost drivers and extend time on wing for components. S&T community is working to address technology gaps. Applies to manned and unmanned aircraft.

Item Action / BenefitMain Rotor AVA installation for main rotor smoothing. Allows for minor

adjustments without requiring MTF

Tail Rotor Eliminates AVA installation for tail rotor balancing. Allows for minor adjustments without requiring MTF.

Main Rotor Swashplate AWR eliminates 50 Hr bearing inspection. Eliminates Maintenance Test Flight required after 50 hr bearing inspection

APU Clutch Eliminates AVA installation for vibration check at APU installation and phase and increases APU mount special inspection from 250 to 500

Fwd Hanger Bearing Safety Improvement w/Continous Diagnostic Monitoring. Increase TBO from 2500 to 2750

Aft Hanger Bearing Safety Improvement w/Continous Diagnostic Monitoring. Increase TBO from 2500 to 2750

Main Trans Primary Acc Clutch

Safety benefit: Can tell if Primary acc clutch has failed and operating on secondary clutch

Nose Gearbox Safety and Maintenance planning benefit. Provides early warning of failure, can remove NGB prior to chip light, preventing internal damage and Precautionary Landing

What Does the MSPU Do?

Item Action / BenefitOil Cooler Axial Fan Bearing Eliminates AVA Installation Requirement for 120 Hour

Inspection. Extends TBO of oil cooler fan assembly from 2500 to 3240 hours.

Engine Output Drive Shaft Eliminates AVA Installation Requirement for 120 Hour Inspection. Eliminates AVA installation for high speed shaft balancing procedure. Replace w/ Continuous Diagnostic Monitoring. MMH Saved per Inspection 3.3 hours. Downtime Saved per Aircraft 1.8 hours

Main Rotor, Nose Absorber Eliminates AVA installation for main rotor smoothing and nose absorber tuning procedure. MMH Saved 17.2 Hours

Tail Rotor Eliminates AVA Installation Requirement for 120 Hour Inspection. Eliminates AVA installation for tail rotor balancing procedure. MMH Saved 2.0 Hours

Cabin Absorber Eliminates AVA installation for cabin absorber tuning procedure. MMH Saved 2.0 Hours

Accessory Gearbox SplineAdapter

Identifies potentially cracked splines reducing probability of generator, or gear damage due to adapter chips migrating into the gearbox.

How Does IVHMS Help?

RIMFIRE: Record of Observation

RIMFIRE datais utilized to Correlate

Health/Condition Indicatorswith actual observedhardware condition

Correlation of equipment condition to indicators such as vibration sensors and metal

chip detectors is necessary to improve confidence in the Health Monitoring System

RIMFIRE: Inspection Lifecycle

Correlate Hardware Condition to Sensor Data via RIMFIRE

How Does It Work?

How Does It Work?Analyze & Correlate Data: Prognostics

Documents

Christopher Smith Director, Condition Based Maintenance...Into CBM Data Warehouse 4 VSAT Scheduled Maintenance Preventive Maintenance Process and Display DSC/HMU Data BN Production