TM 55-2840-254-23
4-69 INSPECT FIRSTTURBINE NOZZLE (AVIM) (Continued)
4-69
(2) Inspect 55 vanes (8).
(a) There shall be no burning or loss of
material.
(b) There shall be no more than three
cracks (9) in any vane from inner
shroud (3). There shall be no more
than 25 vanes with these cracks (9).
(c) There shall be no cracks (10) from
vane leading edge (5) wider than 1/32
inch.
(d) There shall be no chordial cracks on
training edge (10.1) longer than 1/4
inch.
(e) Cracks in vane to shroud junction
corner (10.2) are acceptable.
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