# SDR SWAA2026080486563

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2026
- Submitted: August 5, 2026
- Operation: Air carrier
- Aircraft: [N495WN](https://openairdocs.org/aircraft/N495WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33869
- Aircraft time: 70,911 hours, 42,522 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Stiffener
- Condition: Corroded
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026080486563

## Discrepancy

CORROSION WAS FOUND ON STIFFNER COMMON TO NR 6 TAI DUCT TAB AT OFSS 421 SS 186 [MARKED] REMOVED AND REPLACED STIFFNER COMMON TO NR 6 TAI DUCT TAB AT OFSS 421 SS 186 IAW SRM 51-40-02-0G-0 AND AIPC 57-40-00-17.

---
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.