TM 1-2840-252-23-2
4-56
INITIAL SETUP
Materials:
Applicable Configurations:
Personnel Required:
All
Aircraft Powerplant Inspector
Tools:
Equipment Condition:
Technical Inspection Tool Kit,
Off Engine Task
NSN 5180-00-323-5114
1. Inspect rotor blades (1) and second turbine disc
assembly (2). There shall be no cracks.
a. Inspect blades (1).
(1) There shall be no nicks deeper than 0.015 inch.
(2) There shall be no bent or distorted blades.
(3) Tip rubs shall not be deeper than 0.010 inch.
(4) Surface oxidation is acceptable provided there
is no burning or loss of material.
b. Inspect sealing plates (3). There shall be no loose
or missing sealing plates.
c. Inspect disc face (4). Scoring shall not be deeper
than 0.010 inch. This limit does not apply to area
(5) where material has been removed for balancing.
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