SDR FDEA201204051268

Service difficulty report · Longeron · Doug MD11F

Difficulty date: April 5, 2012
Submitted: April 5, 2012
Operation: Air carrier
Aircraft: N577FE
Make and model: Doug MD11F
Aircraft serial: 48469
Aircraft time: 60,991 hours, 13,172 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Longeron
Part number: AFA77671
Condition: Corroded
Location: Zone 100
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

CENTER CARGO BAY, LONGERON 50 RT, STA 5-128 FOUND WITH CORROSION. CORROSION REMOVED IAW SRM 51-21-01, REV 49. ORIGINAL THICKNESS: 0.156", MATERIAL REMOVED: 0.060", REMAINING THICKNESS: 0.096" FOUND EXCEED LIMITS IAW SRM 53-00-00, FIG 205, REV 49. REPAIR CARRIED OUT IAW EA NR 1-5310-159829. REPAIR CLASSIFIED AS MAJOR IAW GMM 6-2-100, REV 114.

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