# SDR 07FDEA02825

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2007
- Submitted: August 13, 2007
- Operation: Air carrier
- Aircraft: [N901FD](https://openairdocs.org/aircraft/N901FD), registered now
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27122
- Aircraft time: 46,553 hours, 19,092 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Part number: 311N504651
- Condition: Corroded
- Location: Nr 1 Nacelle
- 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/07FDEA02825

## Discrepancy

NUMBER ONE STRUT/PYLON, LT SIDE SKIN, AT APPROXIMATE NAC STA 144, INTERNAL, IS CORRODED ON SKIN AND UNDER LOWER FRAME/CHORD.  REMOVED CORROSION IAW SRM 54-50-01.  ORIGINAL MATERIAL THICKNESS WAS .090", AFTER REWORK REMAINING MATERIAL THICKNESS WAS .079", OUT OF LIMITS IAW SRM 54-50-01.  REPLACED NUMBER ONE STRUT/PYLON LT SIDE SKIN ASSY, P/N 311N5046-51, IAW SRM 51-40-02 AND DRAWING 311N5002, SHEET 13, REV E.

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