Service difficulty report · Longeron · Doug MD11F

Difficulty date
September 2, 2021
Submitted
September 23, 2021
Operation
Air carrier
Aircraft
N631FE
Make and model
Doug MD11F
Aircraft serial
48454
Aircraft time
106,889 hours, 21,670 cycles
Part
Longeron
Part number
A5A70321
Condition
Corroded
Location
Center Cargo
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

LOWER CENTER CARGO COMPARTMENT BILGE STATION 5-120, LONGERON 48 LEFT HAND FOUND WITH CORROSION. REFER TO SNRM NUMBER N01085 FOR WORK DETAILS. LOWER CENTER CARGO COMPARTMENT BILGE STATION 5-120 LONGERON 48 LEFT HAND CORROSION EVALUATED AND FOUND EXCEEDED LIMIT AS PER SRM 53-00-00-2R FIGURE 205 ALLOWABLE DAMAGED. DAMAGED LONGERON REMOVED AND INSTALLED WITH FABRICATED LONGERON AS PER SRM 51-33-01-0G. LONGERON FABRICATED AS PER DOUGLAS DRAWING A5A7032 REVISION B. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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