# SDR SWAA2021071485102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2021
- Submitted: July 14, 2021
- Operation: Air carrier
- Aircraft: [N226WN](https://openairdocs.org/aircraft/N226WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32494
- Aircraft time: 53,110 hours, 31,655 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2021071485102

## Discrepancy

CORROSION ON SUPPORT INTERCOSTAL AT B.S. 259-270 AT L.B.L. 3 - R.B.L. 3; W.L. 207.54.  REMOVED CORROSION ON SUPPORT INTERCOSTAL AT B.S. 259-270 AT LBL-3 TO RBL-3 WL 207.54.  FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1 STEP 4.B.(2)(A)(C).  LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-40-02-0G-0 AND DWG 141A5211.  INSTALLED INTERCOSTAL IAW SRM 51-40-02-0G-0 AND DWG141A5210.

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