# SDR FDEA201110014230

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2011
- Submitted: October 17, 2011
- Operation: Air carrier
- Aircraft: [N643FE](https://openairdocs.org/aircraft/N643FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48486
- Aircraft time: 48,609 hours, 9,839 cycles
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Cell
- Part number: APB74471
- Condition: Corroded
- Location: Center Wing
- 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/FDEA201110014230

## Discrepancy

CORROSION ON CENTER WING AUX TANK TOP PANEL SURFACE AT BS 1199-1219, X = -75 TO X = -107.  CORROSION REMOVED AS PER MD-11 SRM 51-21-01 REV 47. ORIGINAL   MATERIAL THICKNESS = 0.247 INCH; MATERIAL REMOVED = 0.014 INCH; MATERIAL REMAINED   =  0.233 INCH - FOUND EXCEEDED LIMIT AS PER SRM 57-10-01 REV 47, FIGURE 101.  ACCOMPLISHED  E.A. 1-5710-149871,  REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100 REV 113.

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