Service difficulty report · Intercostal · Doug DC951

Difficulty date
November 30, 2010
Submitted
December 1, 2010
Operation
Air carrier
Aircraft
N762NC
Make and model
Doug DC951
Aircraft serial
47710
Aircraft time
79,541 hours, 80,395 cycles
Engine
Pwa JT8D17
Part
Intercostal
Condition
Corroded
Location
Bs 218-237
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 FWD CARGO BETWEEN STA 218 AND 237 JUST OTBD OF LT LONG 28 INTERCOSTAL HAS CORROSION AND CRACKS APPROX 1 INCH. REMOVED CORROSION ORIGINAL MATERIAL .063. REMOVED .003 REMAIN .060 IN LIMITS IAW SRM 53-01 FIG.1 DRILLED STOP HOLE IN INTERCOSTAL IN FWD CARGO STA 218-237 JUST O/B OF LONG 28 FABRICATED REPAIR DOUBLERS FROM .025 7075T6 PO1022687 IAW SRM 51-13-1, FIG 2 TREATED & PRIMED DOUBLERS IAW SRM 51-10-3 NDT STOP HOLE FROM CRACK IAW NDT SPM 06-10-01.001, NO CRACKS NOTED. INSTALLED DOUBLERS IAW SRM 53-01 FIG 2 & 53-30-2.

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