# SDR SWAA2021101922843

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2021
- Submitted: October 19, 2021
- Operation: Air carrier
- Aircraft: [N227WN](https://openairdocs.org/aircraft/N227WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34450
- Aircraft time: 53,921 hours, 32,067 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: None
- 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/SWAA2021101922843

## Discrepancy

CORROSION LOWER SILL LOCATED BS794 TO BS847 RBL24 AND WL156 AT AFT CARGO COMPARTMENT ; 2021-437329 / [13] REPLACED LOWER SILL LOCATED BS 794 TO BS 847 RBL 24 AND WL 156 AT AFT CARGO COMPARTMENT I.A.W B737-700 SRM 51-10-02 ITEM 9 AND DWG 146A8340 SHEET 21 REV-; [14] RII; STEPS 12 & 13 COMPLETED. <BR>CERTIFIED RII WORK PERFORMED.

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