# SDR FDEA202012143208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2020
- Submitted: December 31, 2020
- Operation: Air carrier
- Aircraft: [N523FE](https://openairdocs.org/aircraft/N523FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48479
- Aircraft time: 84,923 hours, 16,937 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Fuel Tank
- Part number: APB74471
- Condition: Corroded
- Location: Zone 200
- 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/FDEA202012143208

## Discrepancy

MAIN CABIN, CTR TANK, UPPER SKIN HAS SURFACE CORROSION AT STA 1229 APPROXIMATELY RBL 16.  REPAIRED CORROSION ON CTR TANK UPPER SKIN AT STA 1229 RBL 16 REF EA # 1-5730-  T0358819 CENTER TANK UPPER SKIN CORROSION    MAJOR REPAIR

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