# SDR FDEA201811123185

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 12, 2018
- Submitted: November 15, 2018
- Operation: Air carrier
- Aircraft: [N916FD](https://openairdocs.org/aircraft/N916FD), registered now
- Make and model: Boeing 757-27B
- Registry model: [Boeing 757-27B](https://openairdocs.org/model/boeing-757-27b) (OpenAirDocs)
- Aircraft serial: 24137
- Aircraft time: 71,433 hours, 27,177 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Condition: Corroded
- Location: Fuselage
- 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/FDEA201811123185

## Discrepancy

MAIN DECK SEAT TRACK, EVIDENCE OF CORROSION ON UPPER SURFACE BS 344 TO BS 376 LBL 6.75. CORROSION REMOVED IAW SRM 51-10-02 REV 125 AND FOUND TO BE OUTSIDE ALLOWABLE LIMITS IAW SRM 53-00-52-1A FIG 101 DETAIL VIII REV 125. NOMINAL THICKNESS OF FLANGE =0.085", DEPTH REMOVED 0.020" MAX ALLOWABLE 0.017 BLEND MUST NOT BE LESS THAN 20X AWAY FROM AN EXISTING FASTENER, BLEND IS AT A   FASTENER LOCATION. SEAT TRACK REPLACED IAW DWG 3504.

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