1.PLANNING INFORMATION
A.Effectivity
* * * FOR GEnx-1B54, -1B58, -1B64, -1B67, -1B70
B.Description
This Service Bulletin identifies new spare parts that are interchangeable with the old parts they replace.
C.Compliance
Category 8
Spare Parts Release.
D.Approval
This Service Bulletin contains no modification information that revises the approved configuration and therefore does not require FAA approval.
E.References
None.
2.MATERIAL INFORMATION
A.Material - Price and Availability
Old parts will be supplied until inventory is depleted.
NOTE:
Prices can change. For Unit Price or Lead Time, Q = Quote.
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2376M20G05
(X)
-
(-)
-
Propulsor Module Assembly
2376M20G05
(X)
 
.2363M55G01
20-220A, 72-00-02

(1)
Q
(-)
Q
Support, No. 1 Bearing Carbon Seal
.2358M29G01
20-220, 72-00-02

(1)
 
This Service Bulletin introduces a new No. 1 bearing carbon seal support that is manufactured by a different process.
 
CID: 547967
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M18G07
(X)
-
(-)
-
Assembly, Aft Fan Stator Case
2305M18G07
(X)
 
.2382M86G01
01-160A, 72-21-00

(1)
Q
(-)
Q
Extension Panel, Outlet Guide Vane Upper Right
.2323M22G01
01-160, 72-21-00

(1)
 
.2382M87G01
01-170A, 72-21-00

(1)
Q
(-)
Q
Extension Panel, Outlet Guide Vane Upper Left
.2323M23G01
01-170, 72-21-00

(1)
 
.2382M88G01
01-380A, 72-21-00

(1)
Q
(-)
Q
Extension Panel, Outlet Guide Vane Lower Right
.2323M24G02
01-380, 72-21-00

(1)
 
.2382M89G01
01-390A, 72-21-00

(1)
Q
(-)
Q
Extension Panel, Outlet Guide Vane Lower Left
.2323M25G02
01-390, 72-21-00

(1)
 
This Service Bulletin introduces new extension panels that are manufactured from a different material.
 
CID: 547381
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M58G05
(X)
-
(-)
-
Turbine Center Frame Assembly
2305M58G05
(X)
 
.2434M90P01
10-290A, 72-54-00

(1)
Q
(-)
Q
Retainer
.2304M89P04
10-290, 72-54-00

(1)
 
This Service Bulletin introduces a more producible and durable new retainer.
 
CID: 547949
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2376M20G05
(X)
-
(-)
-
Propulsor Module Assembly
2376M20G05
(X)
 
.2448M54G01
20-020A, 75-24-30

(1)
Q
(-)
Q
Manifold, HPTC Air
.2411M30G01
20-020, 75-24-30

(1)
 
.2448M55G01
20-030A, 75-24-30

(1)
Q
(-)
Q
Manifold, HPTC Air
.2411M31G01
20-030, 75-24-30

(1)
 
.2448M56G01
20-040A, 75-24-30

(1)
Q
(-)
Q
Manifold, HPTC Air
.2411M32G01
20-040, 75-24-30

(1)
 
.2448M57G01
20-010A, 75-24-30

(1)
Q
(-)
Q
Manifold, HPTC Air
.2411M33G01
20-010, 75-24-30

(1)
 
.2450M54G01
25-010A, 75-24-10

(1)
Q
(-)
Q
Tube, 4th Stage Air
.2375M94G01
25-010, 75-24-10

(1)
 
.2450M57G01
25-020A, 75-24-10

(1)
Q
(-)
Q
Tube, 4th Stage Air
.2417M84G01
25-020, 75-24-10

(1)
 
.2450M60G01
20-020A, 75-24-10

(1)
Q
(-)
Q
Tube, Air (Old Name)
Tube, 4th Stage Air (New Name)
.2375M96G01
20-020, 75-24-10

(1)
 
.2450M61G01
20-010A, 75-24-10

(1)
Q
(-)
Q
Tube, 4th Stage Air
.2375M97G01
20-010, 75-24-10

(1)
 
This Service Bulletin introduces new 4th stage air tubes that have a machined flange to ensure part robustness.
 
CID: 547701
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M58G05
(X)
-
(-)
-
Turbine Center Frame Assembly
2305M58G05
(X)
 
.2304M55P02
10-380A, 72-54-00

(12)
Q
(-)
Q
Retaining Clip
.2304M55P01
10-380, 72-54-00

(12)
 
.2304M56P02
10-030A, 72-54-00

(12)
Q
(-)
Q
Retaining Clip
.2304M56P01
10-030, 72-54-00

(12)
 
This Service Bulletin introduces new retaining clips that reduce stress in the forward inner and outer fairing/panel stiffener grooves.
 
CID: 547964
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M53G09
(X)
-
(-)
-
HPC Module Assembly, VSV Actuator System
2305M53G09
(X)
 
.AS3237-12
(8)
-
(-)
-
Bolt, Machine
.AS3237-12
01-120, 72-30-00

(8)
 
.AS3237-11
(ALT)
-
(-)
-
Bolt, Machine
.AS3237-11
01-120A, 72-30-00

(ALT)
 
.J644P10A
01-120B, 72-30-00

(ALT)
Q
(-)
Q
Bolt, Machine
--
(-)
 
This Service Bulletin introduces an alternate machine bolt to standardize bolt lengths on the variable stator vane (VSV) brackets and bridge connectors on the high pressure compressor (HPC) module.
 
CID: 573062
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M52G03
(X)
-
(-)
-
Stator Assembly, Compressor
2305M52G03
(X)
 
--
(-)
-
(-)
-
Seal, Stage 3 Compressor Stator
.2378M73G01
10-150, 72-32-00

(2)
 
--
(-)
-
(-)
-
Seal, Stage 3 Compressor Stator
.2378M73G02
10-160, 72-32-00

(2)
 
--
(-)
-
(-)
-
Seal, Stage 4 Compressor Stator
.2378M74G01
10-200, 72-32-00

(2)
 
--
(-)
-
(-)
-
Seal, Stage 4 Compressor Stator
.2378M74G02
10-210, 72-32-00

(2)
 
This Service Bulletin deletes the stage 3 and stage 4 compressor stator seals that are no longer being procured.
 
CID: 573063
3.ACCOMPLISHMENT INSTRUCTIONS
A.No change.