TM55-2840-251-23
2-3 COMPRESSOR TURBINE ASSEMBLY (AVIM) (Continued)
2-3-2 INSPECTION
CAUTION
Do not remove blades from disk.
1. Inspect turbine assembly for scaling due to oxidation.
Evidence of scaling is cause for rejection of assembly.
2. Inspect blades, in original position, as follows:
a. Blade shift. If more then 0.010 inch return
assembly to Depot Maintenance.
b. Check minimum squealer tip height. If less than
0.008 inch, reject assembly.
c. Area A: If any cracks are present or there are
more than three nicks, dents or pits up to 0.003 inch deep
the assembly must be returned to Depot Maintenance.
d. Area B: If any cracks are present or there is more
than one nick, dent or pit up to 0.003 inch deep the
assembly must be returned to Depot Maintenance.
e. Leading and trailing edges: If any cracks are
present or there is more than one nick, dent or pit up to
0.010 inch deep, or leading edge tip radius exceeds 0.125
inch
the
assembly
must
be
returned
to
Depot
Maintenance.
f. No damage is permitted in fillet area.
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