# SDR FDEA202509241784

- 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): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron
- Part number: AFA77341
- Condition: Corroded
- 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/FDEA202509241784

## Discrepancy

LOWER CENTER CARGO COMPARTMENT BILGE AREA LONGERON 51LEFT STATION 1701 FOUND   WITH CORROSION. CORROSION ON LONGERON 51LEFT STATION 1701 AT LOWER CENTER CARGO COMPARTMENT   BILGE AREA EVALUATED AND FOUND EXFOLIATED AND OUT OF LIMIT AS PER MD-11 SRM 53-00-05-  2R REPAIR 1 FIGURE 203. CORRODED LONGERON 51LEFT AT STATION 1701 REPAIRED AS PER MD-  11 SRM 53-00-05-2R REPAIR 1 FIGURE 201 AND MD-11 SRM 53-00-05-2R REPIR 1 FIGURE 202.   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.