Service difficulty report · Longeron · Doug MD11F

Difficulty date
June 19, 2025
Submitted
June 19, 2025
Operation
Air carrier
Aircraft
N521FE
Make and model
Doug MD11F
Aircraft serial
48478
Aircraft time
91,548 hours, 17,992 cycles
Part
Longeron
Part number
AFA77781
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 - RIGHT HAND STATION 1621 LONGERON - 39 RIGHT LONGERON FOUND CORROSION. CORROSION ON LONGERON AT CENTER CARGO STATION 1621, LONGERON -39 RIGHT EVALUATION AND FOUND EXFOLIATED AND OUT OF LIMITS PER MD-11 SRM 53-00-00-2R FIGURE 205. REPAIR GENERAL. REPAIR CARRIED OUT WITH 02EA LONGERON REPAIR SECTIONS BETWEEN STATION 5-123 TO STATION 1631 AND BETWEEN STATION 1631 TO STATION 1675 LONGERON - 39 RIGHT AND 01 EA REPAIR SPLICE FITTING PER MD-11 SRM 53-00-05-2R FIGURE 201 REPAIR 1. REPAIR CLASSIFIED MAJOR PER GMM 6-2-100. REFER TO SNRM NO. N00541 FOR WORK DETAILS.

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