# SDR SWAA2021072922910

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2020
- Submitted: July 29, 2021
- Operation: Air carrier
- Aircraft: N743SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29279
- Aircraft time: 73,478 hours, 43,468 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Threshold
- Condition: Corroded
- Location: Bs 792-849 Rbl27
- 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/SWAA2021072922910

## Discrepancy

CORROSION AFT CARGO THRESHOLD STA 792 - 849 RBL 27 WL 156 / REMOVED CORROSION IN AN AREA OF 1.8' X .8' X .011 DEEP; FOUND TO BE OUT OF LIMITS DUE TO NO ESTABLISHED SRM LIMITS; REMOVED WEB BS 792-849 RBL 27; LOCATED AND DRILLED NEW WEB; INSTALLED WEB IAW DWG 146A8340 & SRM 51-40-02

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.