# SDR SWAA2022020712368

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2018
- Submitted: February 7, 2022
- Operation: Air carrier
- Aircraft: N237WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34632
- Aircraft time: 41,837 hours, 24,495 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Intercostal
- Condition: Corroded
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022020712368

## Discrepancy

***CORROSION*** STA 500- STA 500A LBL 21 INTERCOSTAL AT FASTENER HOLES / REMOVED CORROSION ON INTERCOSTAL BS 500-500A LBL 21 IN AREA OF 1' X .75' X .020. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. LEAKED; DRILLED AND INSTALLED AND INSTALLED NEW INTERCOSTAL IAW SRM 51-40-05; SRM 51-40-02 AND BOEING DRAWING 143A7505

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