# SDR SWAA2021071485558

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2021
- Submitted: July 14, 2021
- Operation: Air carrier
- Aircraft: [N226WN](https://openairdocs.org/aircraft/N226WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32494
- Aircraft time: 53,110 hours, 31,655 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Condition: Corroded
- Location: Bs 796
- 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/SWAA2021071485558

## Discrepancy

CORROSION ON WEB AT AFT CARGO BAY BS796 RBL19 WL157. ; / [01] EVALUATED CORRODED AREA ON WEB AT ACB BS796 RBL19 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO CORROSION IS OVER FASTENER HOLE IAW SRM 53-60-15-1A-1 PART 4G(2) DETAIL D.; [02] VERIFIED EVALUATION OF CORRODED AREA ON WEB AT ACB BS796 RBL19 WL157 AND FOUND TO BE OUT OF LIMITS DUE TO CORROSION IS OVER FASTENER HOLE IAW SRM 53-60-15-1A-1 PART 4G(2) DETAIL D.; [03] REMOVED WEB ON ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-05-0G-0 AND DRAWING# 143A8123; [05] VERIFIED LOCATED AND DRILLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-05-0G-0 AND DRAWING# 143A8123; [06] OK TO INSTALL NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157; [07] GAVE OK TO INSTALL NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157; [08] INSTALLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0 AND DRAWING# 143A8120 REV -; [09] VERIFIED INSTALLED NEW WEB P/N 146A8123-25 AT ACB BS794 TO 847 RBL19 WL157 IAW SRM 51-40-02-0G-0 AND DRAWING# 143A8120 REV -; [10] VERIFIED ALL STEPS COMPLETE.

---
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.