TM 1-2840-252-23-2
4-60
INSPECT SECOND TURBINE NOZZLE, SPACER, CASE, AND BUMPER (AVIM) (Continued)
4-60
f. Inspect inner shroud (54)as follows:
(1)
There shall be no circumferential cracks.
(2) There shall be no axial cracks (55) with a
circumferential component at either end
longer than 1/8 inch.
(3) There shall not be more than four axial
cracks (56) which extend from vane/inner
shroud slot to beyond inner shroud/aft
support braze joint (57) These cracks, must
be tight-lipped, separated by at least four
vanes (3), and not longer than 1 inch.
(4) There shall not be more than eight axial
cracks (58) which extend from vane/inner
shroud slot to inner shroud/aft support braze
joint (57).
Inspect mounting ring (59.) There shall not be
g
more than one radial crack (60) per cooling hole
(61).
GO TO NEXT PAGE
4-333
