CFM56-7 Hydromechanical Unit

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This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 267
WTT CFM56-7B - Seattle
May 2004
CFM56-7 Hydromechanical Unit
CFM56-7 HMU
Reliability & Support
• Fleet Statistics
• Removal Drivers
• Modification Effectiveness
• Performance Analysis
• Field Support
Bob Chojnacki
Manager, Customer & Product Support (Honeywell)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 269
Fleet Statistics - Operational Impact
HHMMUURReelliiaabbiilliittyyiissCCrriittiiccaallttooDD&&CCRRaattee
SOURCE: GE/CFMI SMART2000 Database
Delays and Cancellations
HMU Caused
Feb 1998 through Mar 2004
173
100 97
71
66
41 39
31 30
25
20 20
12
4 4 2 2
0
20
40
60
80
100
120
140
160
180
200
HPSOV
TBV DMD and POS Disagree (SAC)
FMV POS Out of Range
FMV POS Disagree
Unknown
VBV Current Out of Range
TBV DMD and POS Disagree (DAC)
Vibration
Leak
No Start/Hung Start
Flameout Uncommanded Throttle
LPTACC DMD and POS Disagree
Engine Control Light
Precautionary
Service Bulletin
No Fault
Mech Ovespd Protec Out of Range
* * * * * * * * *
* Denotes modification in place
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 270
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
Apr-00
Jun-00
Aug-00
Oct-00
Dec-00
Feb-01
Apr-01
Jun-01
Aug-01
Oct-01
Dec-01
Feb-02
Apr-02
Jun-02
Aug-02
Oct-02
Dec-02
Feb-03
Apr-03
Jun-03
Aug-03
Oct-03
Dec-03
Feb-04
P08
"New HPSOV"
(Feb-02)
P09
"FMV/TBV/BSV"
(Jun-03)
P07
"Rumble"
(May-99)
Fleet Statistics - Reliability Performance
RReelliiaabbiilliittyyPPeerrffoorrmmaanncceeCCoonnttiinnuueessttooIImmpprroovvee
MTBUR: 15,266 hrs.
MTBUR = (12 Month Flight Hours) / (12 Month Removals)
“On-wing”
HPSOV Switch
Replacements
(Mar-00)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 271
CFM56-7 HMU - Time to First Removal
PPoossiittiivveeTTrreenndd
Average Hours at First HMU Removal
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
1998 1999 2000 2001 2002 2003 2004
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 272
3012
177
300
P07/P08
New P09
Upgraded to P09
70,000
336,000
27,844,000
Total Fleet
3,489 HMU抯
28,250,000 Hours
( 86%)
( 9%)
( 5%)
Fleet Statistics - Fielded Configurations
CFM56-7 HMU Fleet
By Part Number
CFM56-7 HMU Fleet
By Part Number
CFM56-7 HMU Fleet hours
By Part Number
CFM56-7 HMU Fleet hours
By Part Number
EEaarrllyyiinn““PP0099””PPeenneettrraattiioonn
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 273
• High Pressure Shutoff Valve (HPSOV) Switch
• Wire Chafing Resulting in Wrap Faults
• Burner Staging Valve (BSV) &Main Staging Valve (MSV) Faults
• Fuel Leakage
– Increased Removals Partially Due to AFSO Switch Replacement
• Fuel Metering Valve (FMV) Feedback Faults
– Fuel Metering Valve Resolver
• Demand / Feedback Faults
– Transient Bleed Valve (TBV) EHSV
CFM56-7 HMU Removal Drivers
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 274
0
10
20
30
40
50
60
70
80
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
Unknown / Misc.
Chafing / Wrap Fault
BSV
Leakage
HPSOV Switch
DMD/FDBK (TBV)
FMV F/B
Monthly Usage (Right Axis)
CFM56-7 HMU - Removal Drivers
RReemmoovvaallssDDeeccrreeaassiinnggDDeessppiitteeIInnccrreeaasseeddUUttiilliizzaattiioonn
Monthly Removals
(12 Month Rolling Average)
Monthly Removals
(12 Month Rolling Average)
Monthly Removals
Monthly Usage (hours)
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 275
Removal Driver - HPSOV Switch
• Indication: “ENG VLV CLSD” light bright on shutdown
• Issue: “Sticking” of the Reed & Contact
– SPDT switch reed always in contact during flight
– Pump vibration (20KHz) = resonant frequency of reed switch
• Impact: D&C & Removal
• Monthly Failures (Peak): ~70 per month
• Containment Action: FOC on-wing replacement support
– 10 day MEL reduced D&C’s and HMU Removals
– Allowed operators to schedule replacement
• Modification Action: Introduced SPST Switch (Feb 2002)
– Eliminated reed contact in flight
– Required change to P-5 panel in the cockpit
– FOC on-wing replacement support
 HON FSE’s performed
 Trained operators to perform themselves
 Performed at repair facility on request
““OOnn--wwiinngg””rreeppllaacceemmeenntt rreedduucceeddiimmppaacctt ttooooppeerraattiioonnss
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 276
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
HPSOV Switch
Monthly Usage (Right Axis)
Allowed
On-wing
Switch
Replacement
SPST Switch
Introduction
HPSOV Caused Delays by Year
12
26
40
49
21
1
0
10
20
30
40
50
60
1999 2000 2001 2002 2003 2004
HPSOV Caused Delays by Year
12
26
40
49
21
1
0
10
20
30
40
50
60
1999 2000 2001 2002 2003 2004
Monthly Removals
揘on-HMU?Causes for Switch Removals:
•5-2 Card Issue
•Harness & Connectors
•Throttle Quadrant Switches
•Circuit Breakers
揘on-HMU?Causes for Switch Removals:
•5-2 Card Issue
•Harness & Connectors
•Throttle Quadrant Switches
•Circuit Breakers
Monthly Usage (hours)
Effectiveness Review - HPSOV Switch
HHPPSSOOVVSSwwiittcchhIIssssuueeRReessoollvveedd
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 277
Removal Driver - Wire Chafing
• Indication: Various Fault Codes (Dependent on signal shorted)
Visual Inspection during HPSOV change
• Issue: Sub-optimal wire bundling
• Impact: D&C & Removal
• Monthly Removals (Peak): 11 per month
• Modification Action: Introduced wire retention bracket and
shortened wire lengths (Sep 2001)
– Provided FOC at next shop return
New bracket
Wire tiedowns
IImmpprroovveeddAAsssseemmbbllyyPPrroocceessssCCoonnttrrooll
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 278
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
Chafing / Wrap Fault
Monthly Usage (Right Axis)
Allowed
On-wing
Switch
Replacement
SPST Switch
Introduction
Improved
Wire
Retention
Monthly Removals
Monthly Usage (hours)
Effectiveness Review - Wire Chafing
CChhaaffiinnggRReemmoovvaallsshhaavveeSSttaabbiilliizzeedd
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 279
Removal Driver - BSV/MSV Solenoid
• Indication: BSV Failed Open (SAC Engines)
MSV Failed Closed (DAC Engines)
• Issue: Built-in contamination caused intermittent “sticky”
solenoid actuation & reduced force margin
• Impact: Aborted Take-off, D&C & Removal
• Monthly Removals (Peak): 7 per month
• CFMI Action: Dual Channel Solenoid Excitation (7.B.N Software)
• Containment Action: BSV Solenoids replaced with overhauled
solenoid when removed for cause (May 2002 - Jun 2003)
– Overhauled solenoids have a modified cleaning procedure
– Returned for cause replaced regardless of confirmation
– Operator must provide appropriate fault code
• Modification Action: Improved BSV / MSV Solenoid - Increased
force margin (June 2003)
– Provided FOC if failed at next shop visit
– Provided FOC if returned with appropriate fault code
– SIL No. 8 provides discount for proactive replacement
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 280
Effectiveness Review - BSV/MSV
BBSSVVSSoolleennooiiddIIssssuueeRReessoollvveedd
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
BSV
Monthly Usage (Right Axis)
Began 100%
BSV/MSV Solenoid
Replacement if Fault
Code Provided
Introduced
New BSV
Solenoid
CFM56-7 T/O Aborts Due To BSV
2 2
9
2
0 0 0
2
4
6
8
10
1999 2000 2001 2002 2003 2004
CFM56-7 T/O Aborts Due To BSV
2 2
9
2
0 0 0
2
4
6
8
10
1999 2000 2001 2002 2003 2004
CFMI Introduced
7.B.N Software
Monthly Removals
Monthly Usage (hours)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 281
Removal Driver - Leakage
• Indication: Fuel discovered in switch cavity
External Inspection of HMU
• Issue: Insufficient o-ring squeeze - Metering Valve (MV) Set Screw
• Impact: D&Cs & Removals
• Monthly Removals (Peak): 12 per month
• Modification Action: Introduced MV Set Screw & Leak Check
(Jun 2003)
– Decreased groove depth on the set screw
– Introduced low pressure leak check into acceptance test
Original Metering
Valve Set Screw
Modified Metering
Valve Set Screw
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 282
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
Leakage
Monthly Usage (Right Axis)
Allowed
On-wing
Switch
Replacements
SPST Switch
Introduction
Switch Cavity
Wetting
Allowance
External leakage due to
搇ife-limited fluorosilicone seals
will be covered in
Engineering Initiatives
External leakage due to
搇ife-limited fluorosilicone seals
will be covered in
Engineering Initiatives
Modified MV
Set Screw
Introduction
Monthly Removals
Monthly Usage (hours)
Effectiveness Review - Leakage
SSwwiittcchhCCaavviittyyLLeeaakkaaggeeAAddddrreesssseedd
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 283
Removal Driver - FMV Feedback
• Indication: FMV signal out of range or channel disagreement
Engine Control Light
• Issue: FMV Feedback channel tracking & voltage signal anomalies
• Impact: D&Cs & Removals
• Monthly Removals (Peak): 21 per month
• Containment Action (Resolver): FMV Resolver replaced with new when
removed for cause (May 2002 - Jun 2003)
– Resolver replaced with new regardless of confirmation
– Operator must provide appropriate fault code
• Modification Action (Linkage): FMV Linkage Modifications (Sep 2002)
– Tightened tolerances & reduced the potential for binding
– 100% incorporation at next shop visit
• Modification Action (Resolver): New part number introduced with
design/process modifications (Jun 2003)
– Provided FOC if failed at next shop visit
– Provided FOC if returned with appropriate fault code
– SIL No. 8 provides discount for proactive replacement
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 284
FMV Faults - Resolver Related
Estimated P09 Impact Prior to Incorporation of Change
UNCONFIRMED
60% CONFIRMED
38%
CONFIRMED
(Unknown Causes)
2%
ALREADY
ADDRESSED VIA
DESIGN CHANGES
30%
ADDRESSED BY
ECP 4866
8%
7.B.O.
Temperature
Compensation for
Out-of-Range
Faults May
Reduce
Unconfirmed
Removals
11 Independent
Class 2 changes:
Improved Resolver
magnet wire
robustness & FMV
linkage
Class I change (P09)
Two (2) additional changes
to further improve magnet
wire longevity.
8%
CONFIRMED
(Known Causes)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 285
Effectiveness Review - FMV Resolver
IImmpprroovveeddFFMMVVRReessoollvveerrRReelliiaabbiilliittyy
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
FMV F/B
Monthly Usage (Right Axis)
Began 100%
FMV Resolver
Replacement
if Fault Code
Provided
CFMI Introduced
7.B.O Software
揟emp Compensation Introduced
Modified
Resolver
Monthly Removals
Monthly Usage (hours)
Introduced
FMV Linkage
Modifications
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 286
Removal Driver - TBV EHSV
• Indication: TBV Demand / Feedback Disagree &
Engine Control Light
• Issue: Vibration-induced fretting wear of armature due to contact with
stop screw
– Results in EHSV “latching” in energized or de-energized positions
• Impact: D&Cs and Removals
• Monthly Removals (Peak): 19 per month
• Containment Action: TBV EHSV replaced with zero-time overhauled
EHSV when removed for cause (May 2002 - Jun 2003)
– ESH replaced with new regardless of confirmation
– Operator must provide appropriate fault code
• Modification Action: Addition of feedback wire
eliminated armature contact (Jun 2003)
– Provided FOC if failed at next shop visit
– Provided FOC if returned with appropriate fault code
– SIL No. 8 provides discount for proactive replacement
Area of dimpling wear:
fretting between armature
and stop screws (both sides)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 287
Effectiveness Review - TBV EHSV
CClloosseellyyMMoonniittoorriinnggNNeewwTTBBVVEEHHSSVVPPeerrffoorrmmaannccee
0
5
10
15
20
25
30
35
40
Jan-00
Mar-00
May-00
Jul-00
Sep-00
Nov-00
Jan-01
Mar-01
May-01
Jul-01
Sep-01
Nov-01
Jan-02
Mar-02
May-02
Jul-02
Sep-02
Nov-02
Jan-03
Mar-03
May-03
Jul-03
Sep-03
Nov-03
Jan-04
Mar-04
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
800,000
DMD/FDBK (TBV)
Monthly Usage (Right Axis)
Began 100%
TBV EHSV
Replacement if
Fault Code
Provided
Introduced
New TBV
EHSV
TBV DM B Po sitio n Disag re e Cau se d De lays b y Y e ar
3 2
7
20
52
16
0
10
20
30
40
50
60
199 9 2000 200 1 200 2 2003 2004
TBV DM B Po sitio n Disag re e Cau se d De lays b y Y e ar
3 2
7
20
52
16
0
10
20
30
40
50
60
199 9 2000 200 1 200 2 2003 2004
Monthly Removals
Monthly Usage (hours)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 288
Field Performance - P09 Configuration
P09 Removals to Date
WWiillllCCoonnttiinnuueettooMMoonniittoorrPP0099PPeerrffoorrmmaanncceeCClloosseellyy
• Pareto of removals: 14 HMUs
– 16 occurrences
 Two had multiple failures
– 3 confirmed
 FMV 73-20341 fault (rotor magnet
wire open within windings)
 2 mechanical overspeed protection
signal out of range (isolated to dirty
magnet retainer and installation
damage of OSG switch)
– 13 unconfirmed
 3 FMV feedback faults: (1) x034n,
(1) x035n, (1) both x034n & x035n
 2 TBV demand/feedback faults
 2 external leaks
 2 engine control lights
 1 each: N1 split, flame-out
protection signal, VSV wrap fault,
HPSOV bright after start
~ 247 OE HMUs fielded (380 shipped)
~ 177 R&O HMUs fielded
Est. 396,000 hours accumulated to date on P09
P09 Removal Pareto
0
1
2
3
4
FMV F/B
TBV DMD F/B
External Leak
OSG Signal OOR
ECL
N1 Split
Flame-Out Protect...
VBV Wrap Fault
AFSO Light Bright ...
Unconfirmed
Confirmed
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 289
MTBUR Assessment
HMU Reliability Assessment & Projection
• HMU MTBUR trending up from
12,000 hours
– MTBUR numbers include all
removals except “precautionary”
• MTBUR projection for CFM56-7
HMU incorporating latest and
proposed ECPs
– Projections derived using a
Crowe-AAMSA (Duane growth)
curve
– Projections are estimates based
on known failure modes with
constant failure rates based on
the latest monthly removal rates
– P09 and P11 projected to drive to
20,000 hour MTBUR within 4 and
3 years, respectively
P07 & P08 - ‘recent’ incorporations = wire grid & SPST switch
P09 = FMV resolver module, TBV EHSV, BSV solenoid modifications
P10 = proposed BSV solenoid elimination
P11 = proposed fluorocarbon fuel-to-air seals
CFM56-7 MTBUR
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
12000
13000
14000
15000
16000
17000
18000
19000
20000
7/24/1998
2/9/1999
8/28/1999
3/15/2000
10/1/2000
4/19/2001
11/5/2001
5/24/2002
12/10/2002
6/28/2003
1/14/2004
8/1/2004
2/17/2005
9/5/2005
3/24/2006
10/10/2006
4/28/2007
Month/Year
MTBUR (Hours)
Projected: No Changes
Duane Growth Model
12 Month Actual
Projected: 'P09 Changes
Projected: 'P0' and P11
Crowe AAMSA Model - MTBUR to Date and Projected
Actual 12 Month MTBUR
Crow-AAMSA Model
P08
P11
Target 20,000 EFH to 1st Overhaul
P09
CCFFMM5566--77HHMMUURReelliiaabbiilliittyyEExxcceeeeddiinnggPPrroojjeeccttiioonnss
Field Support
• SIL 8 Provisions
• Support Locations
• Customer Management
• R&O Performance (PEI)
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 291
Service Information Letter 8 - Overview
What’s Included:
• Free of Charge (FOC) Replacement of TBV EHSV, FMV Resolver
and BSV/MSV Solenoid upon failure
– Coverage for failures includes “in the field” or “in the shop”
– Replaced with new design parts
– FOC regardless of HMU warranty status
– FOC regardless of failure confirmation
 Corresponding fault code(s) must be provided
• Discounted HMU overhaul (zero-time restoration) price
– Price reduced 16.4% from $38.3K to $32K
– Includes incorporation of the (3) product modifications
– Includes all previous service bulletins (as required)
• Discounted pricing for proactive incorporation of modifications.
– Priced for rapid return on airline investment.
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 292
SIL 8 - Pricing for Proactive Modification
Modification
Included
Customer
Price
(USD)
Comment
FMV Resolver Only 3,707 FOC if returned for an FMV fault
TBV EHSV Only 6,619 FOC if returned for an TBV fault
BSV Solenoid Only 3,379 FOC if returned for an BSV fault
TBV FOC
(FMV & BSV Charge) 5,500 TBV is FOC if the HMU is returned for a TBV fault
FMV FOC
(TBV & BSV Charge) 7,800 FMV is FOC if the HMU is returned for a FMV fault
BSV FOC (FMV & TBV Charge) 7,800 BSV is FOC if the HMU is returned for a BSV fault
FMV & TBV Only
(BSV disabled) 7,800 Option for operators with the BSV disabled
All 3
(Returned for other reason) 9,500 Price for all 3 on a proactive basis
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 293
0
20
40
60
80
100
120
140
160
Jul-03
Aug-03
Sep-03
Oct-03
Nov-03
Dec-03
Jan-04
Feb-04
Mar-04
Apr-04
May-04
Jun-04
Jul-04
Aug-04
Units
Receipts
Shipments
Backlog
Forecast
Year End Goal (Backlog/Year End Goal (Backlog/UUnniittssIInn--HHoouussee)):: 2200UUnniittss
CFM56-7 HMU - R&O Performance (PEI)
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 294
0
10
20
30
40
Aug-03
Sep-03
Oct-03
Nov-03
Dec-03
Jan-04
Feb-04
Mar-04
Apr-04
May-04
Jun-04
Jul-04
Aug-04
Days in House
Monthly
Target
CFM56-7 HMU - R&O Performance (PEI)
YYeeaarrEEnnddGGooaall((DDaayyssiinnHHoouussee//TTAATT)):: 1100DDaayyss
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in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 295
SR Technics
Zurich, Swit
KLM Technik
Amsterdam
Lufthansa Technik
Hamburg
Prince Edward Island
Canada
Xaimen
China
Legend-
HON Owned Operational Facilities
HON Owned Non-Certified Facilities
3rd Party Operational Facilities
3rd Party Non-Certified Facilities
SR Technics
Zurich, Swit
KLM Technik
Amsterdam
Lufthansa Technik
Hamburg
Prince Edward Island
Canada
Xaimen
China
Legend-
HON Owned Operational Facilities
HON Owned Non-Certified Facilities
3rd Party Operational Facilities
3rd Party Non-Certified Facilities
Support Center Locations
This document and all information and expression contained herein are the property of Honeywell International Inc., are loaned in confidence, and may not,
in whole or in part, be used, duplicated, or disclosed for any purpose without prior written permission of Honeywell International Inc. All rights reserved 296
CFM56-7 HMU Reliability Modifications aarreeEEffffeeccttiivvee
CFM56-7 HMU Performance Summary
• R&O Support Performance Continues to Improve
• HPSOV Switch Issue - Resolved
• Wire Chafing Issue - Stabilized
• BSV/MSV Issue - Resolved
• Fuel Leakage Issues
– HPSOV Switch Cavity Related - Resolved
– Life-Limited Fluorosilicone Seals Related - Alternative Pending
• FMV Feedback Faults
– Fuel Metering Valve Resolver Related - Resolved
– FMV System Level Related - Addressed/Watch
• Demand / Feedback Faults
– Transient Bleed Valve (TBV) EHSV - Addressed/Watch

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CFM56-7 Hydromechanical Unit