TRANSMITTAL INFORMATION
REVISION 1 TO SERVICE BULLETIN 72-0039
Revision 1 is issued to update paragraph 2.A, Material - Price and Availability.
The original was issued September 05, 2011. Revision bars in the left margin identify changes.
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
GEK 112864, GEnx-1B Engine Illustrated Parts Catalog (EIPC)
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
 
2305M33G01
(X)
-
(-)
-
Transfer Gearbox
2305M33G01
(X)
 
.2349M78P01
01-310A, 72-62-00

(1)
Q
(-)
Q
Packing, Preformed
(SIN 032N8)
.J1438P109
01-310, 72-62-00

(1)
 
This Service Bulletin introduces a new performed packing that is made of high thermal stability oil compatible material.
 
CID: 547407
 
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)
 
.2403M92G01
10-030A, 75-24-20

(1)
Q
(-)
Q
Manifold, CCC Air
(SIN 63101)
.2429M07G01
10-030, 75-24-20

(1)
 
This Service Bulletin introduces a new ccc air manifold that is easier to produce and eliminates weld stresses.
 
CID: 547580
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M10G03
(X)
-
(-)
-
GEnx Engine Assembly
2305M10G03
(X)
 
.2051M72G02
20-200A, 72-00-00

(18)
Q
(-)
Q
Blade, Stage 1
(SIN 83004)
.2051M72G01
20-200, 72-00-00

(18)
 
This Service Bulletin introduces a new stage 1 blade that has a compound tip cut which reduces rub forces.
 
CID: 547715
 
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)
 
.2382M47G01
01-500A, 72-21-00

(6)
Q
(-)
Q
Acoustic, Outer Liner Mid
(SIN 83503)
.2302M64G01
01-500, 72-21-00

(6)
 
.2302M64G01
01-500B, 72-21-00

(ALT)
Q
(-)
Q
Acoustic, Outer Liner Mid
(SIN 83503)
--
(-)
 
This Service Bulletin introduces a new outer liner mid acoustic P/N 2382M47G01 that uses a single degree of freedom acoustic treatment. The old outer liner mid acoustic P/N 2302M64G01 uses a two degrees of freedom acoustic treatment. The new and old outer liner mid acoustics are physically and functionally interchangeable.
 
CID: 547776
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M56G05/G06
(X)
-
(-)
-
Nozzle Assembly, HPT Stage 2
2305M56G05/G06
(X)
 
.2100M89P03
01-240A, 72-52-00

(42)
Q
(-)
Q
Shroud, HPT Stator Stage 2
(SIN 17800)
.2100M89P02
01-240, 72-52-00

(42)
 
This Service Bulletin introduces a new HPT stator stage 2 shroud that is manufactured from a different material.
 
CID: 547626
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M21G08
(X)
-
(-)
-
Fan Booster Assembly
2305M21G08
(X)
 
.2321M22P01
01-500, 72-22-00

(AR)
-
(-)
-
Weight, Balance
(SIN 830W2)
.2321M22P01
01-500, 72-22-00

(AR)
 
.2431M90P01
01-500A, 72-22-00

(ALT)
Q
(-)
Q
Weight, Balance
(SIN 830W2)
--
(-)
 
.2321M38P01
01-510, 72-22-00

(AR)
-
(-)
-
Weight, Balance
(SIN 830W3)
.2321M38P01
01-510, 72-22-00

(AR)
 
.2431M91P01
01-510A, 72-22-00

(ALT)
Q
(-)
Q
Weight, Balance
(SIN 830W3)
--
(-)
 
.2321M38P02
01-520, 72-22-00

(AR)
-
(-)
-
Weight, Balance
(SIN 830W4)
.2321M38P02
01-520, 72-22-00

(AR)
 
.2431M92P01
01-520A, 72-22-00

(ALT)
Q
(-)
Q
Weight, Balance
(SIN 830W4)
--
(-)
 
.2321M38P03
01-530, 72-22-00

(AR)
-
(-)
-
Weight, Balance
(SIN 830W5)
.2321M38P03
01-530, 72-22-00

(AR)
 
.2431M93P01
01-530A, 72-22-00

(ALT)
Q
(-)
Q
Weight, Balance
(SIN 830W5)
--
(-)
 
.2321M38P04
01-570, 72-22-00

(AR)
-
(-)
-
Weight, Balance
(SIN 830WB)
.2321M38P04
01-570, 72-22-00

(AR)
 
.2431M93P02
01-570A, 72-22-00

(ALT)
Q
(-)
Q
Weight, Balance
(SIN 830WB)
--
(-)
 
This Service Bulletin introduces alternate balance weights that are manufactured from a different material.
 
CID: 547851
 
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)
 
.2457M59G01
45-060A, 72-00-02

(1)
Q
(-)
Q
Bracket, Support
(SIN 61BE0)
.2383M33G01
45-060, 72-00-02

(1)
 
..MS21076L4N
45-065A, 72-00-02

(4)
Q
(-)
Q
Nut, Plate
(SIN 61BE0 5)
--
(-)
 
..AN123470
45-070A, 72-00-02

(8)
Q
(-)
Q
Rivet, Solid
(SIN 61BE0 6)
--
(-)
 
This Service Bulletin introduces a new support bracket that is more producible.
 
CID: 547992
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M71G02
(X)
-
(-)
-
Gearbox, Accessory
2305M71G02
(X)
 
.2312M58G03
10-010A, 72-64-00

(1)
Q
(-)
Q
Casing, Accessory Gearbox
(SIN 038A0)
.2312M58G02
10-010, 72-64-00

(1)
 
This Service Bulletin introduces a new accessory gearbox casing that has improved repairability.
 
CID: 573154
 
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)
 
.2332M82G01
45-241, 72-00-02

(1)
Q
(-)
Q
Nozzle, A/O Seal
(SIN 01510)
.2331M60G01
45-240, 72-00-02

(1)
 
This Service Bulletin introduces a new A/O seal nozzle that is designed to avoid the possibility of misassembly.
 
CID: 942554
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M57G04
(X)
-
(-)
-
Rotor Assembly, HPT
2305M57G04
(X)
 
.2305M35G05
01-110A, 72-53-00

(62)
Q
(-)
Q
Blade, Stage 2
(SIN 150B0)
.2305M35G04
01-110, 72-53-00

(62)
 
.2305M35G04
01-110B, 72-53-00

(ALT)
Q
(-)
Q
Blade, Stage 2
(SIN 150B0)
--
(-)
 
This Service Bulletin introduces a new stage 2 blade that is fabricated using different manufacturing processes. It is physically and functionally interchangeable with the old stage 2 blade.
 
CID: 573153
 
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)
 
.2383M88G01
(X)
-
(-)
-
Bracket
.2383M88G01
(X)
 
..MS21076L4N
30-115A, 72-00-00

(1)
NP
(-)
NP
*Plate, Nut
(SIN 83710 3)
..AS3481-04
30-115, 72-00-00

(1)
 
NP = Not Provisioned
 
*Parts not supplied by GE Engine Services L.L.C. Procure through local purchase.
 
This Service Bulletin introduces a new nut plate that uses dry film lubricant while the old part has silver plating. The change in assembly lubricant increases clamp load.
 
CID: 573065
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M31G12
(X)
-
(-)
-
Fan Hub Frame
2305M31G12
(X)
 
.10086608
01-070, 72-26-00

(1)
Q
(-)
Q
Ring, Unison
.10086608
01-070, 72-26-00

(1)
 
.10121407
01-070A, 72-26-00

(ALT)
Q
(-)
Q
Ring, Unison
(SIN 840B6)
--
(-)
 
This Service Bulletin introduces a new alternate unison ring that reduces the actuator stroke discrepancy. The new unison ring is interchangeable with the old one.
 
CID: 573158
 
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)
 
.2264M12G04
01-012, 72-21-00

(1)
Q
(-)
Q
Case, Forward Containment Fan
(SIN 83500)
.2264M12G03
01-011, 72-21-00

(1)
 
This Service Bulletin introduced a lighter forward containment fan case.
 
CID: 547858
3.ACCOMPLISHMENT INSTRUCTIONS
A.None.