# SDR FDEA202509241780

- 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): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Doubler
- Part number: ACA385021
- 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/FDEA202509241780

## Discrepancy

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.

---
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.