# SDR SWAA2020030442041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2020
- Submitted: March 4, 2020
- Operation: Air carrier
- Aircraft: [N426WN](https://openairdocs.org/aircraft/N426WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29830
- Aircraft time: 61,080 hours, 36,269 cycles
- System (JASC): [5340 · Fuselage Main, Attach Fittings](https://openairdocs.org/jasc/5340)
- Part: Stringer Clip
- Part number: 146A8130
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2020030442041

## Discrepancy

***CORROSION***  STR CLIP BS 827 STR 27R WL 156 DUE TO BLUE WATER SPILL         CORROSION ON STR CLIP BS 827 STR 27R WL 156 FOUND OUT OF LIMITS DUE TO NO SRM ALLOWABLE DAMAGE LIMITS. REMOVED STRINGER CLIP, LOCATED & DRILLED NEW STRINGER CLIP, APPLIED CHEMICAL CONVERSION COATING AND PRIMER TO NEW STRINGER CLIP AND INSTALLED NEW STRINGER CLIP PER SRM 51-40-02-0G-0, MM 51-21-41-370-802, MM 51-21-73-370-804 AND DWG 146A8130, DWG 146A8133, SRM 51-40-05-0G-0.

---
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.