# SDR SWAA2021082300599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2021
- Submitted: August 23, 2021
- Operation: Air carrier
- Aircraft: [N902WN](https://openairdocs.org/aircraft/N902WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36615
- Aircraft time: 45,290 hours, 26,421 cycles
- System (JASC): [5530 · Vertical Stabilizer](https://openairdocs.org/jasc/5530)
- Part: Attach Bracket
- Condition: Corroded
- Location: Vertical Stab
- 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/SWAA2021082300599

## Discrepancy

***CORROSION*** DORSAL FIN 321A AFT LT ATTACH BRACKET HAS CORROSION IN THE BOLT HOLE ; / [01] REMOVED LIGHT CORROSION AT DORSAL FIN 321AAFT LT ATTACH BRACKET IAW B737 AMZM 51 21 31 350 801; [02] VERIFIED STEP #1:OK TO TREAT AND PRIME; [03] TREATED AND PRIMED AREA IAW B737 SRM 51 21 41 370 801 AND B737 SRM 51-21-72-370-801; [04] VERIFIED STEP #3; [05] VERIFIED; [06] VERIFIED

---
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.