# SDR IPXA2025070534130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2025
- Submitted: July 11, 2025
- Operation: Air carrier
- Aircraft: [N254UP](https://openairdocs.org/aircraft/N254UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48406
- Aircraft time: 84,414 hours, 19,732 cycles
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Tank
- Part number: APB74471
- 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/IPXA2025070534130

## Discrepancy

FOUND CORROSION AT FUEL TANK UPPER SKIN M. CABIN STA 1239 XCW=-81.00 ATA 53-10.REMOVED 6EA FASTENERS AND REMOVED CORROSION AT FUEL TANK UPPER SKIN M. CABIN STA. 1239 XCW=-81.00 PER MD11 SRM 57-10-01-1A-1 FIG. 101. ACCOMPLISHED ON E.A.# 011-5730-01-B0525 REV. P1 FROM STEP 1 TO 4, PER UPS RII GMM 04-02

---
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.