Service difficulty report · Longeron Splice · Doug MD11F

Difficulty date
October 16, 2025
Submitted
October 16, 2025
Operation
Air carrier
Aircraft
N574FE
Make and model
Doug MD11F
Aircraft serial
48499
Aircraft time
101,045 hours, 24,018 cycles
Part
Longeron Splice
Part number
AFA77621
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

LOWER CENTER CARGO BAY BILGE AREA LONGERON 52 EXISTING REPAIR SPLICE FITTING FOUND WITH CORROSION AT BS 1691. CORROSION ON LONGERON 52, BS 1701 AND EXISTING REPAIR SPLICE FITTING AT BS 1691, LONGERON-52 AT LOWER CENTER CARGO COMPARTMENT BILGE AREA EVALUATED & FOUND EXFOLIATED AND EXCEEDED LIMIT AS PER MD-11 SRM 53-00-05-2R, REPAIR 1 FIGURE 203. CORRODED LONGERON 52, BS 1701 AND EXISTING REPAIR SPLICE FITTING STATION 1691 REPAIRED IAW SRM 53-00-05-2R, REPAIR 1 FIGURE 202. CLASSIFIED AS MAJOR IAW GMM 6-2-100. REFER TO SPECIAL/NONROUTINE MAINTENANCE FORM N00586 FOR WORK DETAILS.

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