SDR FDEA201707111910

Service difficulty report · Doubler · Doug MD11F

Difficulty date: July 11, 2017
Submitted: July 25, 2017
Operation: Air carrier
Aircraft: N529FE
Make and model: Doug MD11F
Aircraft serial: 48624
Aircraft time: 51,990 hours, 11,591 cycles
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Doubler
Part number: ARB39545
Condition: Cracked
Location: Lt Wing Rib
Stage of operation: IN
How discovered: V
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

LEFT WING FIXED LEADING EDGE RIB DOUBLER AT XOS 667 FOUND CRACKED. THE RIB DOUBLER WAS REMOVED IAW SRM 51-31-01-0G . A NEW DOUBLER WAS FABRICATED IAW DRAWING ARB3954, REV K, AND INSTALLED IAW SRM 51-31-01-0G, REPAIR CLASSIFIED AS MAJOR IAW GMM 6-2-100.

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