# SDR SWAA2020042032516

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2020
- Submitted: April 20, 2020
- Operation: Air carrier
- Aircraft: [N926WN](https://openairdocs.org/aircraft/N926WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36629
- Aircraft time: 40,878 hours, 24,621 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- 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/SWAA2020042032516

## Discrepancy

***CORROSION*** ON FRAME AT MAIN EBAY BS330 S-23L WL161. MARKED / REMOVED CORROSION-.007' OUT OF .040' ORIGINAL THICKNESS WITH .033' MATERIAL REMAINING. FOUND TO BE OUT OF LIMITS; REMOVED AND INSTALLED FABRICATED CHORD-SWA P.O. 787219/1; APPLIED CHEMICAL CONVERSION AND PRIMER PER SRM 51-40-03; 51-20-01; 51-40-05; 58-10-15-1A-1 AND DWG. #141A1362 AND 141A8131.

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