TM 1-2840-252-23-2
4-48 INSPECT FOURTH STAGE POWER TURBINE NOZZLE (AVIM) (Continued)
4-48
Inspect plasma sprayed area of cylinder (21)
i.
and third turbine nozzle contact area (22as
)
follows:
(1) There shall be no chips (23) in coating on
forward edge (24) greater than 1/8 inch long
axially.
(2) There shall be no chips in coating on aft edge
(25).
(3) There shall be no rubs (26) in blade track area
that breaks through coating to base metal.
FOLLOW-ON MAINTENANCE
None
END OF TASK
4-256
