# SDR UPS02M39218

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2002
- Submitted: August 30, 2002
- 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 time: 37,930 hours, 7,141 cycles
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Doubler
- Condition: Corroded
- Location: Fuel Tank
- 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/UPS02M39218

## Discrepancy

INSPECTION TYPE:C, UPPER AUX TANK UPPER EXTERNAL SKIN HAS SLIGHT SURFACE CORROSION AT STA 1375 X=-47 TO X=-90.  UPPER AUX TANK UPPER EXTERNAL SKIN CORROSION REMOVED BY HAND, CLEAN AND TREATED IAW SRM 51-21-01 VOL II REV 31.  CORROSION FOUND WITHIN LIMIT EXCEPT 3 DOUBLERS BADLY CORRODED AT STA 1375 X=-47 TO X=-75, FOUND EXCEED LIMIT.  DOUBLER FABRICATED AND REPLACED AS PER SRM 51-35-01 VOL II REV 31.

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