# SDR SWAA2021070178444

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2021
- Submitted: July 1, 2021
- Operation: Air carrier
- Aircraft: [N942WN](https://openairdocs.org/aircraft/N942WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36648
- Aircraft time: 39,538 hours, 23,971 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support
- Condition: Corroded
- Location: Bs 807 S25r
- 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/SWAA2021070178444

## Discrepancy

CORROSION LOWER SILL ON BS 807 AT LEVEL STR 25R AND RBBL 21 AT AFT CARGO COMPARTMENT ; 2021-255299 / [01] REPLACED LOWER SILL PLATE BTW BS 807 AT LEVEL STR 25R ON RBBL 21 AT AFT CARGO COMPARTMENT IAW SRM B737-700 51-10-02;51-40;02 AND DRAWING 146A8340-8 REV -; [02] REPLACED LOWER SILL PLATE BTW BS 807 AT LEVEL STR 25R ON RBBL 21 AT AFT CARGO COMPARTMENT IAW SRM B737-700 51-10-02;51-40;02 AND DRAWING 146A8340-8 REV -<BR>RII

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.