TM 55-2840-254-23
2-34 REPAIR COMPRESSOR ROTOR BLADES (Continued)
2-34
e. Inspect repaired areas of blades (8)
as follows:
(1) Use micrometer caliper. Measure blade
wall thickness (9). Minimum blade wall
thickness shall be 0.030 inch.
(2) Inspect blade corners (10). Repaired
areas within 0.120 inch of corners (10)
shall be blended to a smooth radius.
There shall be no sharp edges.
(3) If damage to impeller assembly (6) ex-
ceeds limits after repair, replace engine.
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
2-316
