SDR FDEA201710122910

Service difficulty report · Rib · Doug MD11F

Difficulty date: October 12, 2017
Submitted: October 24, 2017
Operation: Air carrier
Aircraft: N574FE
Make and model: Doug MD11F
Aircraft serial: 48499
Aircraft time: 82,863 hours, 19,184 cycles
System (JASC): 5712 · Wing, Rib/Bulkhead
Part: Rib
Condition: Cracked
Location: Lt Wing
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 LEADING EDGE RIB DOUBLER AT XOS 789, FOUND CRACKED. THE DOUBLER WAS REMOVED IAW SRM 51-31-01-0G, FABRICATED A NEW DOUBLER IAW DRAWING ARB3954, REV K. INSTALLED THE DOUBLER IAW SRM 51-33-01-0G. THE REPAIR WAS CLASSIFIED AS MAJOR IAW GMM 6-2-100.

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