3-7 INSPECTION OF COMBUSTOR CASE (AVIM) (CONT)
Visually inspect combustor
case as follows.
Inspect exhaust and load valve
flange for distortion, wear or
No damage allowed.
Inspect for cracks. If cracks are
suspected, fluorescent penetrant in-
spect per MIL-STD-6866. No cracks
Repair cracks (Task 3-8).
Inspect for distortion. No dis-
Inspect for loose or damaged nut
No damage allowed. Repair
nut plates (Tasks 3-9, 3-10).
Inspect for loose rivets. No loose
Repair rivets (Task
Inspect for loose or damaged in-
No damage allowed: Repair
inserts (Task 3-11).
Dimensionally inspect combus-
tor case as follows.
Using vernier caliper, measure inner
flange diameter A. Diameter A shall
be 11.645 to 11.659 inches.
combustor case if diameter is not
Using dial indicator, surface plate
and gage block set, measure surface
A for flatness.
Distortion not to
exceed 0.005 inch.
tor case if surface A is not within
FOLLOW-ON MAINTENANCE: None.