Service difficulty report · Cusp Web · Doug DC951

Difficulty date
December 28, 2010
Submitted
December 29, 2010
Operation
Air carrier
Aircraft
N764NC
Make and model
Doug DC951
Aircraft serial
47717
Aircraft time
77,185 hours, 77,042 cycles
Engine
Pwa JT8D9
Part
Cusp Web
Condition
Cracked
Location
Bs 693-712
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING M-CHECK FOUND BS 693-712 CUSP WEB IS CRACKED AS VIEWED FROM FWD CARGO KIDNEY AREA, RT SIDE. REMOVED TOP GUSSET AROUND FRAME 693 FOR ACCESS IAW SRM 51-30-2. CUTOUT DAMAGED AREA OF CUSP IAW A53-10-16-801-663A-A. NDT VERIFIED NO CRACKS IAW NDT SPM 06-10-01. FABRICATED FILLER AND DOUBLER IAW SRM 51-10-2 AND DC-9-A-53-10-16-801-663A-A. TREATED AND PRIMED EACH IAW SRM 51-10-3. INSTALLED FILLER AND DOUBLER WET TO BS 693-702 RT CUSP AND TOP GUSSET WITH SHIM IAW DC-9-A-53-10-16-801-663A-A.

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