SDR FDEA202509251825

Service difficulty report · Stringer · Doug MD11F

Difficulty date: September 25, 2025
Submitted: September 25, 2025
Operation: Air carrier
Aircraft: N574FE
Make and model: Doug MD11F
Aircraft serial: 48499
Aircraft time: 101,045 hours, 24,018 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Part number: APB74761
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

DURING ACCOMPLISHING W/C: 57.20.0.1, FOUND CRACK ON UPPER AUXILLIARY TANK LOWER STRINGER 47, ALONG XCW 17 (LEFT SIDE). CRACKED STRINGER S-47 ALONG XCW 17 (LEFT SIDE) ON UPPER AUXILLIARY TANK LOWER AREA REPAIRED AS PER MD-11 SRM 57-10-03-2R FIGURE 201 REPAIR 1. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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