Service difficulty report · Doubler · Doug MD11F

Difficulty date
September 24, 2025
Submitted
September 24, 2025
Operation
Air carrier
Aircraft
N574FE
Make and model
Doug MD11F
Aircraft serial
48499
Aircraft time
101,045 hours, 24,018 cycles
Part
Doubler
Part number
ACA385021
Condition
Cracked
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

NR 1 AIRCON RAM AIR EXHAUST ASSEMBLY CUTOUT PRODUCTION DOUBLER FOUND CRACKED AT LEFT HAND STATION 561.667. CRACKED DOUBLER AT FUSELAGE #1 AIRCON RAM AIR EXHAUST ASSEMBLY CUTOUT AT LEFT HAND STATION 561.667 REMOVED AND REPLACED WITH FABRICATED DOUBLER AS PER MD-11 SRM 51-35-01-0G. DOUBLER FABRICATED AS PER DRAWING ACA3850 REVISION AA. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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