# SDR SWAA2021031755525

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2021
- Submitted: March 17, 2021
- Operation: Air carrier
- Aircraft: [N277WN](https://openairdocs.org/aircraft/N277WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32531
- Aircraft time: 46,096 hours, 27,633 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Seat Track
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021031755525

## Discrepancy

CABIN SEAT TRACK #4 HAS LIGHT CORROSION AT STA 649 / REMOVED DAMAGE PER SRM 51-10-02. FOUND TO BE OUT OF LIMITS PER SRM 53-00-52-1A1. P/N 144A5350-3 AT STA 649 0.050 MATERIAL REMOVED. REMOVED AND REPLACE #4 SEAT TRACK FROM STA 538 TO STA 727B PER SOPM 20-50-01. REMOVED AND INSTALLED FLOOR PANELS 232RF AND 242CF PER AMM 53-21-00.

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