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Copyright (2020) General Electric Company, U.S.A.
TRANSMITTAL INFORMATION
REVISION 1 TO SERVICE BULLETIN 72-0100
Revision 1 is issued to update paragraphs 1., PLANNING INFORMATION and 2., MATERIAL INFORMATION.
The original was issued June 04, 2012. Revision bars in the left margin identify changes.
1.PLANNING INFORMATION
A.Effectivity
 
* * * FOR GEnx-1B64, -1B64/P1, -1B64/P2, -1B67, -1B67/P1, -1B67/P2, -1B70, -1B70/75/P1, -1B70/75/P2, -1B70/P1, -1B70/P2, -1B70C/P1, -1B70C/P2, -1B74/75/P1, -1B74/75/P2, -1B76/P2, -1B76A/P2
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.
 Impact F
 Implement as deemed necessary per the Service Bulletin Category.
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
 
2305M23G01
(X)
-
(-)
-
Bearing Assembly, No. 1
(SIN 01100)
2305M23G01
(X)
 
.2301M10P01
01-080, 72-23-00

(1)
-
(-)
-
Bearing, No. 1 Cylindrical Roller
(SIN 011A0)
.2301M10P01
01-080, 72-23-00

(1)
 
.2373M81P01
01-080A, 72-23-00

(ALT)
156,700.00
(1)
5
Bearing, No. 1 Cylindrical Roller
(SIN 011A0)
--
(-)
 
This Service Bulletin introduces an alternate No. 1 cylindrical roller bearing that is manufactured by a different vendor.
 
CID: 547469
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M32G03
(X)
-
(-)
-
Gearbox, Inlet
(SIN 03000)
2305M32G03
(X)
 
.2301M13P01
01-130, 72-61-00

(1)
Q
(-)
Q
Bearing, No. 3 Cylindrical Roller
(SIN 030A5)
.2301M13P01
01-130, 72-61-00

(1)
 
.2373M83P01
01-130A, 72-61-00

(ALT)
56,600.00
(1)
5
Bearing, No. 3 Cylindrical Roller
(SIN 030A5)
--
(-)
 
This Service Bulletin introduces an alternate No. 3 cylindrical roller bearing P/N 2373M83P01, that is fabricated with a different manufacturer. It is the same in shape, fit and function as the current No. 3 cylindrical roller bearing P/N 2301M13P01.
 
CID: 547469-1
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2305M53G06/
G09/G11/G12
(X)
-
(-)
-
HPC Module Assembly
(SIN 00108)
2305M53G06/
G09/G11/G12
(X)
 
.2305M52G03/
G05
(X)
-
(-)
-
Stator Assembly, Compressor
(SIN 07000)
.2305M52G03/
G05
(X)
 
..2303M41P04
05-010A, 72-32-00

(1)
Q
(-)
Q
Plug, Forward HPC Case Borescope
(SIN 070AK)
..2303M41P01
05-010, 72-32-00

(1)
 
..2303M41P04
05-020A, 72-32-00

(1)
Q
(-)
Q
Plug, Forward HPC Case Borescope
(SIN 070AL)
..2303M41P01
05-020, 72-32-00

(1)
 
..2303M41P05
05-030A, 72-32-00

(1)
Q
(-)
Q
Plug, Forward HPC Case Borescope
(SIN 070AM)
..2303M41P02
05-030, 72-32-00

(1)
 
..2303M41P06
05-040A, 72-32-00

(1)
Q
(-)
Q
Plug, Forward HPC Case Borescope
(SIN 070AB)
..2303M41P03
05-040, 72-32-00

(1)
 
.2327M67P02
10-010A, 72-30-00

(1)
Q
(-)
Q
Plug, Stage 6 Borescope
(SIN 080AD)
.2327M67P01
10-010, 72-30-00

(1)
 
.2327M68P02
10-020A, 72-30-00

(1)
Q
(-)
Q
Plug, Stage 7 Borescope
(SIN 080AU)
.2327M68P01
10-020, 72-30-00

(1)
 
.2327M69P02
10-030A, 72-30-00

(1)
Q
(-)
Q
Plug, Stage 8 Borescope
(SIN 080AW)
.2327M69P01
10-030, 72-30-00

(1)
 
.2327M70P02
10-040A, 72-30-00

(1)
Q
(-)
Q
Plug, Stage 9 Borescope
(SIN 080BA)
.2327M70P01
10-040, 72-30-00

(1)
 
This Service Bulletin introduces new stage 6-9 borescope plugs that have thicker locking tangs for improved durability.
This Service Bulletin also introduces new forward high pressure compressor (HPC) case borescope plugs with revised stage markings to align the view aft labeling convention for the forward HPC case borescope plugs.
 
CID: 573247
 
New Part Number
Qty/ Eng
Unit ($) Price
Pkg Qty
Lead Time Days
Part Name
Old Part Number/ IPC Location
Qty/ Eng
 
2258M80G01/
G06
(X)
-
(-)
-
Combustion Chamber Assembly
(SIN 12400)
2258M80G01/
G06
(X)
 
.2503M68P01
01-061, 72-42-00

(22)
Q
(-)
Q
Retainer, Inner
(SIN 12400 9)
.2258M90P01
01-060A, 72-42-00

(22)
 
.2503M69P01
01-041, 72-42-00

(22)
Q
(-)
Q
Retainer, Outer
(SIN 12400 10)
.2258M91P01
01-040A, 72-42-00

(22)
 
This Service Bulletin introduces a new inner retainer and a new outer retainer that are fabricated with a different manufacturing process.
 
CID: 573431
3.ACCOMPLISHMENT INSTRUCTIONS
A.No change.