TM 1-2840-252-23-2
4-65
INITIAL SETUP
Personnel Required:
Applicable Configurations:
Aircraft Powerplant Inspector
All
References:
Tools:
Task 1-109
Technical Inspection Tool Kit,
Equipment Condition:
NSN 5180-00-323-5114
Off Engine Task
Materials:
None
Inspect first turbine disc assembly (1as follows:
)
1.
a.
Inspect 80 blades (2).
(1) There shall be no nicks, dents, or scratches
deeper than 0.015 inch.
(2) There shall be no bends or distortion.
(3) There shall be no cracks.
(4) There shall be no rubs on blade tips (3) or blade
platform (4) deeper than 0.015 inch.
(5) There shall be no loss of material due to
burning.
(6) There shall be no material rollover (5) on blade
tips (3).
(7) There shall be no bluish-black discoloration in
area (6) adjacent to rollover (5).
Inspect sealing plate (7).
b.
There shall be no
cracks.
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