# SDR SCNA20201201370

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2020
- Submitted: December 1, 2020
- Operation: Air carrier
- Aircraft: N817SY
- Make and model: Boeing 737-8K2
- Registry model: [Boeing 737-8K2](https://openairdocs.org/model/boeing-737-8k2) (OpenAirDocs)
- Aircraft serial: 30392
- Aircraft time: 65,543 hours, 25,167 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Corroded
- Location: L2 Door Sill
- 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/SCNA20201201370

## Discrepancy

CORROSION ON L2 DOOR MOP SILL STA 947 TO STA 986 WL 208.  CORROSION ON AFT ENTRY DOOR LOWER MAIN SILL INNER CHORD STA 947-986 WL 208, FOUND TO BE OUT OF LIMITS, IAW SRM 53-70-51-1A-1 FIG 103 DETAIL D.  REMOVED AND REPLACED DAMAGED INNER CHORD, IAW SRM 51-40-02-0G-0 AND BOEING DWG 147A8501.

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