# SDR USAA2009092892646

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2009
- Submitted: September 29, 2009
- Operation: Air carrier
- Aircraft: N458UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 25022
- Aircraft time: 50,470 hours, 33,393 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Condition: Cracked
- Location: Lt Wing
- 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/USAA2009092892646

## Discrepancy

CLT - Q5 - MAJOR REPAIR - CRACK ON LEFT WING RIB LOWER CHORD AT AFT LOWER END, WBL 135.5.  REPAIRED LEFT WING RIB LOWER CHORD AT AFT LOWER END, WBL 135.5 IAW TYPICAL REPAIR 57-25-20.

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