REPAIR THIRD STAGE POWER TURBINE ROTOR (AVIM) (Continued)
Repair is allowed to any depth provided no
cracks are visible.
c. Repair labyrinth seals (20). Repair cracks (19) in
labyrinth seals (20) as follows.
(1) Blend all sharp edges (21) Use carborundum
(2) Polish to smooth finish Use crocus cloth (E16).
(3) All seals can be blend repaired One seal (20)
must have at least 0.010 inch material
remaining after repair.
END OF TASK