Service difficulty report · Longeron · Doug MD11F

Difficulty date
July 11, 2025
Submitted
July 11, 2025
Operation
Air carrier
Aircraft
N631FE
Make and model
Doug MD11F
Aircraft serial
48454
Aircraft time
114,264 hours, 23,985 cycles
Part
Longeron
Part number
ACA37962
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
E
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

UPON TRIMOFF NOSE LANDING GEAR RIGHT HAND TRUNNION HOLE FOUND LONGERON CRACK 0.5 STATION 585. X = -24.000. CRACKED LONGERON 0.5 AT NOSE LANDING GEAR RIGHT HAND TRUNNION FITTING HOLE AT STATION 585, X = -24.000 REMOVED AND REPLACED PER MD-11 SRM 51-31-01-0G. LONGERON FABRICATED PER DOUGLAS DRAWING ACA 3796 REVISION A. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100. (LONGERON REPLACED BETWEEN STATION 547.250 AND STATION 594.875.)

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