# SDR SWAA2020042033085

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 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/SWAA2020042033085

## Discrepancy

***CORROSION*** AT ACB ON 947 FRAME LBL14 TO RBL11 WL178. / CORROSION ON FRAME MEASURED 5' X 1.4' X .013; ORIGINAL THICKNESS .063 .050 REMAINING FOUND OUT OF LIMITS PER SRM 53-00-07-1A-1. REMOVED FRAME 23R-23L; LOCATED; DRILLED AND INSTALLED NEW FRAME PER SRM 51-40-02-0G-0; DWG 147A1047; DWG 147A7410 DWG 1470002

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