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
Chafed
Location
Bs 693
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, RT MAIN FRAME JUST BELOW FLOOR CUSP WEB REPAIR IS CHAFING FRAME. BLENDED CHAFE ON FRAME BY HAND NO MATERIAL LOSS. TREATED AND PRIMED IAW SRM 51-10-3. FOUND AJACENT REPAIR CRACKED. REMOVED IAW SRM 51-30-2. NDT VERIFIED NO CRACKS AFTER DAMAGE REMOVED IAW NDT SPM 06-10-01. FABRICATED FILLER 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 WEB TO STA 688-693 RT CUSP IAW DC-9-A-53-10-16-663A-A.

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