# SDR FDEA202509241777

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2025
- Submitted: September 24, 2025
- Operation: Air carrier
- Aircraft: [N574FE](https://openairdocs.org/aircraft/N574FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48499
- Aircraft time: 101,045 hours, 24,018 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Stiffener
- Part number: AJC700135
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202509241777

## Discrepancy

EMPENNAGE- AFT ACCESSORY COMPARTMENT AFT BULKHEAD STATION 2164 MOST LOWER   STIFFENER FOUND CRACKED. ENPENNAGE - AFT ACCESSORY COMPARTMENT AFT BULKHEAD STATION 2164 MOST LOWER AREA   CRACKED STIFFENER REMOVED AND REPLACED WITH REWORKED STIFFENER AS PER MD-11   SRM 51-33-01-0G. STIFFENER REWORKED AS PER DOUGLAS DRAWING AJC 7001 REVISION DT.   REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.