# SDR SWAA2022030224376

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2019
- Submitted: March 2, 2022
- Operation: Air carrier
- Aircraft: [N274WN](https://openairdocs.org/aircraft/N274WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32529
- Aircraft time: 41,215 hours, 24,397 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Condition: Corroded
- Location: Fwd Entry Door (
- 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/SWAA2022030224376

## Discrepancy

L-1 DOOR LOWER SILL CORRODED IN 3 PLACES; WATERLINE 208;B.S. 312+4'; LBL63; B.S. 328+1'; LBL 64 AND B.S. 344-4'; LBL 64. / REMOVED CORROSION IN AN AREA OF 1' X 20' I-A-W SRM 51-10-02-0G-0; ORIGNAL MATERIAL THICKNESS OF ANGLE IS .080 PER SRM 53-10-15-01-1. MATERIAL LOSS .011' FOUND TO BE OUT OF LIMITS PER SRM 53-10-15-1A-1. REMOVED AND REPLACE ANGLE I-A-W SRM 51-40-02-0G-0; AND BDWG# 141A8110 PO #69930. AT L1 DOOR LOWER SILL STA 312+4 WL 208 LBL 63 TO BS 344-4'; LBL 64

---
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.