SDR FDEA201307301697

Service difficulty report · Rib · Doug MD11F

Difficulty date: July 30, 2013
Submitted: August 12, 2013
Operation: Air carrier
Aircraft: N521FE
Make and model: Doug MD11F
Aircraft serial: 48478
Aircraft time: 70,984 hours, 11,520 cycles
System (JASC): 5531 · Vertical Stabilizer, Spar/Rib
Part: Rib
Part number: AMC713038
Condition: Cracked
Location: Vertical Stab
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

AFTER REMOVAL OF EXISTING REPAIR, FOUND L/E RIB DAMAGED AT ZFS =596.972. DAMAGED RIB REMOVED IAW SRM 51-35-01, REV 53. NEW RIB FABRICATED IAW DWG AMC7130, REV E. RIB INSTALLED IAW SRM 51-35-01, REV 53. REPAIR CLASSIFIED MAJOR GMM 6-2-100, REV 116.

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