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Prepared by Bruce Hollowell
June 2017
B787
RELIABILITY STATISTICS
June 2017
787 Reliability Statistics 1
B787 Reliability Report
Contents
Contents 1
Introduction and Definitions 2
B787 Fleet Summary 3
B787 Fleet Utilisation 4 787 Monthly Utilisation 4 Aircraft Utilization Summary 4 787 Utilization History 4
B787 Technical Interruptions 5 Despatch Reliability 5 B787 Technical Interruptions 6 B787 Delay Aircraft Matrix 7 B787 Delay Reports – Top ATA Graphs 8
Total B787 Fleet Pireps for Month 9 B787 Pilot Reports – ATA Alert Table 9 ATA Graphs – Chapters in Alert 10 B787 Pilot Report Matrix 11
Unscheduled Component Removals 12 B787 Component Removals 12 Early Removals (TBI ≤ 1000 FH) 12 Poor Performing Units 12
B787 ETOPS Operations 12
B787 Summary of Engine Operation 14 General Electric Genx-1B 14
B787 Summary of APU Operation 14 Hamilton Sunstrand APS5000A 14
June 2017
787 Reliability Statistics 2
Introduction and Definitions
Purpose
The function of the monthly Reliability Statistics report is to provide data on the engineering operation of the fleet. It monitors
operational statistics, PIREPS, Technical Interruptions, unscheduled component removals and engine statistics. In the near future
other areas will be included. This report is for general circulation.
The reports are the routine communication channels for the Reliability Management Programme which exists to ensure safe and
reliable fleet operation with maximum economy of maintenance.
Definitions
Upper Control Limit A rate of occurrence which, if exceeded, triggers an investigation and corrective action.
Pireps - Mean + 2 times Standard Deviation of the 3 month Pirep rate
Delays – Number and severity by ATA system
Alert Occurs when the 1 month rate of occurrence exceeds the UCL.
ATA System Status
‘Alert’ - Exceedance of the upper control limit, no in-depth analysis required, will be monitored.
Key to Pirep and Delay ATA graphs
3-month rate
Upper Control Limit
Trend line
APU Hours The auxiliary power unit operating time from start up to shut down.
Thomson Airways record APU hrs. as landings 1.5
MTBUR Mean Time Between Unscheduled Removals
A performance figure calculated by dividing the total unit flying hours (airborne) accrued in a
period by the number of unscheduled unit removals that occurred during the same period.
Technical Delay Delays greater than 15 minutes caused by technical malfunction of aircraft
(or suspected technical malfunction). Includes delays out of scheduled maintenance caused by
technical malfunctions.
Despatch Reliability Percentage of flights that do not incur a technical delay.
World Fleet Basic IFSD’s due to engine related defects only
Contact Address Reliability Department Thomson Airways
Wigmore House
Wimore Lane
Luton
LU2 9TN
Tel: 01582-648336
Email: [email protected]
June 2017
787 Reliability Statistics 3
B787 Fleet Summary
REG. Type Line No. Serial No. Build Date ETOPS Status
787 Powered by GEnx-1B Engines
G-TUIA 787-8 092 34422 30-Apr-2013 180 Minutes
G-TUIB 787-8 094 34423 03-May-2013 180 Minutes
G-TUIC 787-8 096 34424 26-May-2013 180 Minutes
G-TUID 787-8 106 36424 31-Jul-2013 180 Minutes
G-TUIE 787-8 191 37227 14-Jun-2014 180 Minutes
G-TUIF 787-8 198 36428 06-Jul-2014 180 Minutes
G-TUIG 787-8 260 36426 06-Jan-2015 180 Minutes
G-TUIH 787-8 291 37229 01-May-2015 180 Minutes
G-TUII 787-8 300 37230 28-May-2015 180 Minutes
G-TUIJ 787-9 439 44578 27-Jun-2016 180 Minutes
G-TUIK 787-9 564 44579 18-May-2017 180 Minutes
June 2017
787 Reliability Statistics 4
B787 Fleet Utilisation
787 Monthly Utilisation
Aircraft Utilization Summary
787 Utilization History
June 2017
787 Reliability Statistics 5
B787 Technical Interruptions Despatch Reliability
2015 2016 Jun 17 3 Mth 12 Mth
Movements 5453 6482 736 1768 6837
Delays >15 Minutes 82 92 11 27 109
Delays >60 Minutes 36 54 7 14 57
Delays > 180 Minutes 7 19 3 4 18
Aircraft Change 2 3 0 0 3
Air Turnback 1 1 0 0 1
Diversions - All 0 0 0 0 0
Return to Stand 7 9 1 5 16
Rejected Take - Off 0 0 0 0 0
Despatch Reliability >15 minutes 98.50 98.58 98.51 98.47 98.41
Despatch Reliability Target (key task) 96.50 96.50 98.29
95
96
97
98
99
100
20
15
20
16
L1
2M
Ju
l-15
Au
g-1
5
Sep
-15
Oct
-15
No
v-15
Dec-
15
Jan-1
6
Feb
-16
Mar-
16
Ap
r-16
May-1
6
Ju
n-1
6
Ju
l-16
Au
g-1
6
Sep
-16
Oct
-16
No
v-16
Dec-
16
Jan-1
7
Feb
-17
Mar-
17
Ap
r-17
May-1
7
Ju
n-1
7
% D
esp
atc
h R
eli
ab
ilit
y
L1M L12M L3M Target
June 2017
787 Reliability Statistics 6
B787 Technical Interruptions
ATA System Delay Time Jun-17 R ate 3 mth Total 3 mth R ate12 mth
Total12 mth rate
05 Maintenance Checks
21 Air Conditioning 04:26 3 0.41 6 0.34 14 0.20
22 Auto Pilot 1 0.06 2 0.03
23 Communication
24 Electrical Power 1 0.06 8 0.12
25 Equipment & Furnishings 2 0.03
26 Fire Protection 14:03 2 0.27 2 0.11 2 0.03
27 Flight Controls 02:24 1 0.14 7 0.40 26 0.38
28 Fuel 6 0.09
29 Hydraulic Power 5 0.07
30 Ice & Rain Protection 1 0.01
31 Indicating & Recording
32 Landing Gear 01:00 1 0.14 4 0.23 13 0.19
33 Lights 2 0.03
34 Navigation 4 0.06
35 Oxygen
36 Pneumatics
38 Water & Waste 1 0.06 2 0.03
42 Common Core System 1 0.01
44 Cabin Systems 01:50 1 0.14 1 0.06 3 0.04
45 Central Maintenance System 1 0.01
46 Information Systems
47 Inert Gas System 1 0.01
49 APU
50 Cargo Compartment
51 Structures
52 Doors 01:45 1 0.14 2 0.11 6 0.09
53 Fuselage
54 Nacelles / Pylons
55 Stabiliser
56 Windows 24:00 1 0.14 1 0.06 1 0.01
57 Wings 1 0.01
71 Powerplant 1 0.01
72 Engines
73 Engine Fuel & Control 4 0.06
74 Engine Ignition
75 Engine Air 04:12 1 0.14 1 0.06 2 0.03
76 Engine Controls
77 Engine Indicating
78 Exhaust
79 Engine Oil
80 Starting 1 0.01
Total 53:40 11 27 109
1.501.42
1.59
0
0.5
1
1.5
2
2.5
3
20
15
20
16
L1
2M
Ju
l-15
Au
g-1
5
Sep
-15
Oct
-15
No
v-15
Dec-
15
Jan-1
6
Feb
-16
Mar-
16
Ap
r-16
May-1
6
Ju
n-1
6
Ju
l-16
Au
g-1
6
Sep
-16
Oct
-16
No
v-16
Dec-
16
Jan-1
7
Feb
-17
Mar-
17
Ap
r-17
May-1
7
Ju
n-1
7
De
lay
s p
er
10
0 C
ycl
es
L1M L12M L3M
June 2017
787 Reliability Statistics 7
B787 Delay Aircraft Matrix 05 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 42 44 45 46 47 49 50 51 52 53 54 55 56 57 71 72 73 74 75 76 77 78 79 80 SUM
Jun-17 1 1
L3M 1 1 1 3
L12M 1 1 1 2 2 2 9
Jun-17 1 1
L3M 1 1 2
L12M 1 1 1 3 1 1 1 1 1 4 15
Jun-17 1 1
L3M 1 1
L12M 1 6 1 1 1 1 11
Jun-17 1 1
L3M 1 1 2
L12M 1 1 2 4 1 1 1 3 1 15
Jun-17 1 1
L3M 2 1 2 5
L12M 5 1 1 1 1 1 4 14
Jun-17 2 1 3
L3M 2 1 4 1 8
L12M 3 2 1 4 1 2 1 1 1 16
Jun-17
L3M
L12M 1 2 1 1 1 1 7
Jun-17
L3M 1 1
L12M 1 1 1 1 4
Jun-17 1 1
L3M 1 1
L12M 1 4 5
Jun-17 3 2 1 1 1 1 9
L3M 6 1 2 5 4 1 1 2 1 23
L12M 13 2 5 2 2 22 5 4 1 11 2 4 2 1 3 1 1 6 1 1 1 4 1 1 96
05 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 42 44 45 46 47 49 50 51 52 53 54 55 56 57 71 72 73 74 75 76 77 78 79 80 SUM
Jun-17 1 1 2
L3M 1 2 1 4
L12M 1 3 4 1 1 2 1 13
Jun-17
L3M
L12M
Jun-17 1 1 2
L3M 1 2 1 4
L12M 1 3 4 1 1 2 1 13
05 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 38 42 44 45 46 47 49 50 51 52 53 54 55 56 57 71 72 73 74 75 76 77 78 79 80 SUM
Jun-17 3 2 1 1 1 1 1 1 11
L3M 6 1 1 2 7 4 1 1 2 1 1 27
L12M 14 2 8 2 2 26 6 5 1 13 2 4 2 1 3 1 1 6 1 1 1 4 2 1 109
ATA
IA
IB
IC
ID
To
tal
78
7-8
IE
IF
ATA
IG
IH
II
IJ
ATA
IK
78
7-9
June 2017
787 Reliability Statistics 8
B787 Delay Reports – Top ATA Graphs 38 27
26 22
21 52
38 56
47 #NUM!
Water & Waste Windows
Inert Gas System #NUM!
Water & Waste Flight Controls
Fire Protection Auto Pilot
Air Conditioning Doors
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.2
0.4
0.6
0.8
1
1.2
1.4
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
0.3
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.05
0.1
0.15
0.2
0.25
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Jul-16 Aug-16 Sep-16 Oct-16 Nov-16 Dec-16 Jan-17 Feb-17 Mar-17 Apr-17 May-17 Jun-17
June 2017
787 Reliability Statistics 9
Total B787 Fleet Pireps for Month
B787 Pilot Reports – ATA Alert Table
(Colour Denotes ATA in Alert)
June 2017
787 Reliability Statistics 10
ATA Graphs – Chapters in Alert
June 2017
787 Reliability Statistics 11
B787 Pilot Report Matrix
00 02 05 11 12 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 41 42 44 45 46 47 49 51 52 53 54 56 71 72 73 74 75 77 78 79 80 Total
May-17 2 1 7 2 1 19 4 1 2 1 1 2 1 3 1 48
L3 3 1 14 2 3 2 43 9 1 1 1 2 1 1 3 3 11 1 4 1 3 110
L12 6 4 1 3 57 3 17 12 140 17 20 10 5 6 8 6 6 33 22 26 1 5 45 5 1 4 1 8 1 1 474
Jun-17 8 3 2 24 2 1 1 1 2 8 16 1 69
L3 13 1 5 3 59 6 14 1 3 1 2 5 19 39 2 2 1 2 179
L12 5 4 55 7 20 12 205 1 18 2 19 11 10 4 36 32 52 2 89 6 2 1 3 1 1 13 1 1 15 8 20 657
Jun-17 1 1 2 8 1 7 2 2 1 1 1 2 29
L3 1 3 1 3 1 44 2 2 2 1 6 10 8 1 1 14 4 1 4 2 17 128
L12 7 7 3 41 1 69 7 304 3 24 1 11 4 5 47 13 88 41 29 10 139 8 16 3 17 9 61 3 1 972
Jun-17 1 9 1 1 1 1 4 1 1 1 21
L3 1 5 7 1 39 2 1 2 3 3 5 6 9 7 24 4 7 3 3 1 133
L12 7 6 3 71 4 40 5 201 7 7 4 7 4 4 19 13 30 43 86 4 58 12 19 7 2 10 1 1 1 676
Jun-17 3 1 11 4 1 1 1 9 1 4 36
L3 2 3 13 2 36 3 3 6 3 3 2 20 2 11 109
L12 9 10 1 1 69 5 12 202 2 16 2 1 4 2 4 76 34 63 8 72 9 1 7 55 665
Jun-17 3 18 23 1 1 2 5 9 1 1 1 65
L3 1 10 34 1 53 6 1 1 4 3 7 5 1 1 18 1 1 2 150
L12 1 1 3 35 3 82 3 225 2 9 2 9 2 4 14 5 38 26 21 4 61 10 4 1 4 7 1 1 578
Jun-17 2 1 1 2 2 1 17 1 1 2 4 5 11 1 1 52
L3 3 1 1 9 1 7 3 45 1 1 2 2 2 6 6 3 22 1 1 3 1 1 122
L12 7 7 1 1 73 4 13 8 257 6 15 1 2 8 20 7 41 30 53 5 98 9 1 6 1 11 3 2 690
Jun-17 1 4 12 26 1 1 9 6 2 22 1 19 1 3 108
L3 1 1 1 6 12 5 57 2 2 3 10 6 2 5 35 2 34 2 1 5 2 1 195
L12 6 7 1 1 63 2 24 41 278 13 3 3 4 9 22 23 61 42 101 4 97 6 6 9 2 9 2 3 3 845
Jun-17 1 11 1 2 17 1 1 3 1 1 2 6 6 5 58
L3 1 1 19 6 2 36 1 1 2 1 11 1 1 2 19 1 25 1 2 6 139
L12 8 2 4 1 1 75 5 18 9 212 4 5 1 2 10 27 6 27 21 69 5 95 5 1 22 19 1 655
00 02 05 11 12 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 41 42 44 45 46 47 49 51 52 53 54 56 71 72 73 74 75 77 78 79 80 Total
Jun-17 4 1 5 1 18 2 1 2 1 1 6 1 1 1 2 2 49
L3 1 5 4 26 1 4 65 1 3 2 6 12 4 2 30 1 3 2 2 5 179
L12 5 11 1 9 57 3 16 18 297 1 9 1 4 4 9 5 8 45 49 19 7 98 1 14 3 1 6 7 1 5 1 715
Jun-17 2 2 1 3 1 31 1 1 1 1 7 9 9 1 70
L3 2 2 1 3 1 39 1 1 1 2 2 11 13 2 9 1 1 92
L12 2 2 1 3 1 39 1 1 1 2 2 11 13 2 9 1 1 92
00 02 05 11 12 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 41 42 44 45 46 47 49 51 52 53 54 56 71 72 73 74 75 77 78 79 80 Total
Jun-17 4 0 11 1 6 48 1 39 7 203 7 4 1 1 3 8 15 12 20 24 55 0 4 94 1 6 0 1 0 4 0 0 21 0 0 2 0 2 0 0 0 0 605
L3 10 0 21 1 9 121 6 77 21 516 15 24 2 2 24 19 40 24 45 69 119 0 15 239 1 16 16 2 0 13 0 0 40 0 0 17 1 5 3 2 0 0 1536
L12 63 3 65 6 23 599 33 304 127 2360 57 127 24 41 47 74 172 89 477 351 532 1 56 861 1 85 53 9 2 82 6 1 149 1 1 77 2 15 27 10 1 4 7019
ATA
Total ATA
TUIG
TUIH
TUII
ATA
TUIJ
TUIK
787-8
787-9
Fle
et
ATA
TUIA
TUIB
TUIC
TUID
TUIE
TUIF
June 2017
787 Reliability Statistics 12
Unscheduled Component Removals
B787 Component Removals
Early Removals (TBI ≤ 1000 FH)
Poor Performing Units
June 2017
787 Reliability Statistics 13
B787 ETOPS Operations
Jun 17Last 3
Months
Last 12
Months
775 1925 7347
420 1157 4297
54.19% 60.10% 58.49%
3
Flight Cycles
ETOPS Sectors
% ETOPS Flights
ETOPS Downgrades
0
100
200
300
400
500
600
700
800
900
Flig
ht
Cyc
les
ETOPS Utilisation
Monthly Utilisation ETOPS Cycles
0
0.5
1
1.5
2
2.5
3
3.5
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
No
. o
f D
ow
ngr
ade
s
Do
wn
grad
e R
ate
/10
0 F
Cyc
les
787 ETOPS Downgrade 12M Summary
Monthly Total Downgrade Rate
June 2017
787 Reliability Statistics 14
B787 Summary of Engine Operation General Electric Genx-1B
10002 27738 108795
0 0 2
0 0 2
0.000 0.000 0.018
0.100 0.036 0.009
Unscheduled Removal Rate
In Flight Shut Down Rate
Last 12
Months
Engine Hours
Total Removals
Unscheduled Removals
Jun-17Last 3
Months
Cumulative hours
319036
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
Jul-
15
Aug-1
5
Sep
-15
Oct
-15
Nov-
15
Dec-
15
Jan
-16
Feb-1
6
Mar
-16
Apr-
16
May
-16
Jun-1
6
Jul-
16
Aug-1
6
Sep
-16
Oct
-16
Nov-
16
Dec-
16
Jan
-17
Feb-1
7
Mar
-17
Apr-
17
May
-17
Jun-1
7
Rem
ova
ls p
er
1000 E
ng
Hou
rs
GEnx-1B Unscheduled Removals
1 Mth Rate 3 Mth Rate
B787 Summary of APU Operation Hamilton Sunstrand APS5000A
1163 2888 11021
0 1 7
0 1 4
0.00 0.35 0.36
0 0 0
PN: 7002907H03
APU Hours
Total Removals
Unscheduled Removals
Unscheduled Removal Rate
Failure to Start Inflight
Cumulative hours Jun-17
Last 3
Months
Last 12
Months31584
0.00
0.50
1.00
1.50
2.00
2.50
Jul-
15
Aug-1
5
Sep
-15
Oct
-15
Nov-
15
Dec-
15
Jan
-16
Feb-1
6
Mar
-16
Apr-
16
May
-16
Jun-1
6
Jul-
16
Aug-1
6
Sep
-16
Oct
-16
Nov-
16
Dec-
16
Jan
-17
Feb-1
7
Mar
-17
Apr-
17
May
-17
Jun-1
7US
Rem
ova
ls p
er
1000 A
PU
Hou
rs
APU Unscheduled Removals
1 Mth Rate 3 Mth Rate