TM 55-2840-254-23
4-52 REPAIR THIRD STAGE POWER TURBINE ROTOR (AVIM) (Continued)
4-52
(3)
Blend repair inner non-critical area (8)
up to the following limits:
(a)
Nicks and dents (9) in airfoil sur-
face (10) up to 0.010 inch deep
and up to 0.078 inch long.
(b)
Nicks and dents (11) in edges (12)
up to 0.031 inch deep and up to
0.125 inch long.
(4)
Blend repair outer non-critical area (13)
up to the following limits:
(a)
Nicks and dents (14) in airfoil sur-
face (15) up to 0.015 inch deep
and up to 0.156 inch long.
(b)
Nicks and dents (16) in edges (17)
up to 0.078 inch deep and up to
0.219 inch long.
(5)
Blend repair nicks up to 0.015 inch deep
at tip labyrinth (18).
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