TM 1-2840-252-23-2
4-60
INSPECT SECOND TURBINE NOZZLE, SPACER, CASE, AND BUMPER (AVIM) (Continued)
4-60
Inspect turbine rotor case (74) s follows.
4.
a
a. There shall be no cracks.
b.
There shall be no dents (75) deeper than 1/8
inch.
NOTE
In following step c, the bolt holes are located closer to
the outer edge.
c. The bolt holes (76) shall not be elongated.
Inspect second turbine nozzle bumper (77as
)
5.
follows:
a.
There shall be no deformation and/or severe
damage.
b.
The bolt holes (78) shall not be elongated.
c.
There shall be no wear or fretting at third turbine
nozzle support contact area (79) exceeding 0.010
inch in depth providing all build clearances can be
maintained.
d.
There shall be no wear or fretting at second
turbine nozzle contact area (80) exceeding 0 005
inch in depth providing all build-up clearances can
be maintained.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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