EFFECTIVITY
ALL CFM56 ENGINES
CFMI PROPRIETARY INFORMATION
CFM56-ALL TRAINING MANUAL
SERVICE
BULLETINS
BORESCOPE
INSPECTION
Page 163
Sep 03
ATA
CHAPTER
SERVICE BULLETIN TITLE
SB NUMBER AND APPLICABILITY
PER ENGINE MODEL
-2C -2A -2B -3 -5A -5B -5C -7B
72-32-00
Inspection of HPC Stage 1 Disk Bore
-- -- -- -- -- 72-064 -- --
Compressor Front Stator - On-Wing
Borescope Inspection for HPC Stator to
Rotor Contact
-- -- -- -- -- 72-553 72-427 72-515
72-42-00
On-Wing Borescope Inspection of the
Combustion Chamber Outer Cowl
72-850 72-445 72-591 72-897 72-536 72-246 72-366 72-304
Borescope Inspection of Inner Liner
Supports on DAC Chambers
-- -- -- -- -- 72-124 -- --
Borescope Inspection of Combustion
Chamber Inner Cowl Bolts
-- -- -- -- -- 72-237 -- --
72-52-00
On-Wing Borescope Inspection of
HPT Blades
-- -- -- -- --
72-098
72-240
72-431
72-462
72-326
72-54-00
Low Pressure Turbine - Borescope
Inspection for Stage 1 LPT Blade Position
-- -- -- -- -- 72-441 -- 72-383
72-55-00
On-Wing Borescope Inspection of the
LPT Shaft Suspected for Hydrogen
Embrittlement
72-841 -- -- 72-886 -- -- -- --