# SDR SWAA2020091414973

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2020
- Submitted: September 14, 2020
- Operation: Air carrier
- Aircraft: N918WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29843
- Aircraft time: 42,267 hours, 25,177 cycles
- System (JASC): [5347 · Fuselage, Seat/Cargo Attach Fittings](https://openairdocs.org/jasc/5347)
- Part: Seat Track
- Condition: Corroded
- Location: Bs 594
- 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/SWAA2020091414973

## Discrepancy

CORROSION ON PASSENGER CABIN SEAT TRACK AT BS 594 RBL 45 WL 208.1.  REMOVED CORROSION ON PASSENGER CABIN SEAT TRACK BS 594 RBL 45 WL 208.1.  MAXIMUM MATERIAL LOSS ON THE TOP SURFACE OF THE TRACK L=3.7' D=0.008' AND L=3' D=0.015' IN THE BOTTOM OF THE TRACK, FOUND TO BE WITHIN LIMITS.  APPLIED CHEMICAL CONVERSION COATING AND ALUMINIZED EPOXY PRIMER, IAW SRM 53-00-52-1A-1 89004U 09SEP20.

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