Service difficulty report · Rib · Doug MD11F

Difficulty date
August 29, 2021
Submitted
September 23, 2021
Operation
Air carrier
Aircraft
N521FE
Make and model
Doug MD11F
Aircraft serial
48478
Aircraft time
84,111 hours, 15,761 cycles
Part
Rib
Part number
ARB39545
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 FIXED LEADING EDGE COMPARTMENT RIB DOUBLER FOUND CRACKED AT STATION XOS 667 AS MARKED. LEFT HAND WING FIXED LEADING EDGE COMPARTMENT RIB DOUBLER AT STATION XOS 667 REMOVED AND REPLACED AS PER SRM 51-31-01-OG . RIB DOUBLER FABRICATED AS PER DOUGLAS DRAWING ARB 3954 REVISION K . REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100 .

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