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INSPECT ENGINE HOT END (AVIM) (Continued)
1. Rotate engine 45 degrees. Measure second tur-
bine disc assembly clearance at 0, 45,
90, 135, 180, 225, 270 and 315 degree posi-
tions as follows:
a. Insert thickness gage (2) between blade tip
(3) and second turbine nozzle inside
diameter (4).
b. Measure and record minimum tip clearance
while rotating second turbine disc assembly
(1) counterclockwise one revolution for each
check.
c. Tip clearance shall be 0.025 inch minimum.
Record clearance.
d. If tip clearance is less than 0.025 inch repair
second turbine nozzle (Ref. Task 4-60).
2. Remove and inspect second turbine disc
assembly (1) (Ref. Tasks 4-53 and 4-55).
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