# SDR FDEA200909123291

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2009
- Submitted: September 14, 2009
- Operation: Air carrier
- Aircraft: [N913FD](https://openairdocs.org/aircraft/N913FD), registered now
- Make and model: Boeing 757-28A
- Registry model: [Boeing 757-28A](https://openairdocs.org/model/boeing-757-28a) (OpenAirDocs)
- Aircraft serial: 24017
- Aircraft time: 84,316 hours, 25,419 cycles
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Part number: 311N504631
- Condition: Corroded
- Location: Zone 400
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA200909123291

## Discrepancy

LT PYLON EXT LWR OTBD SKIN JUST BELOW MID SPAR FUSE PIN (APROX PP-185 TO PPS-196 ) HAS CORROSION.  REMOVED CORROSION IAW SRM 54-50-01, DETAIL 1 AND FIG 101.  ORIGINAL MAT 0.090 INCH, REMAINING MAT. 0.074 INCH, L=12.0 INCH, W=1.75 INCH, D=0.016 INCH FOUND TO BE OUT OF LIMITS IAW SRM 54-50-01, DETAIL 1, FIG. 101. RECEIVED AND COMPLIED WITH EA F-5450-131112, DATED 08/10/09, TREATED AND PRIMED REWORK AREA IAW SOPM 20-43-03 AND SRM 51-20-01, THIS IS   A CATEGORY "A" MAJOR REPAIR.

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