# SDR USAA2009120393299

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2009
- Submitted: December 4, 2009
- Operation: Air carrier
- Aircraft: N450UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24933
- Aircraft time: 51,561 hours, 34,160 cycles
- System (JASC): [5534 · Vertical Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5534)
- Part: Bolt
- Part number: 69702514
- Condition: Corroded
- Location: Vertical Stab
- 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/USAA2009120393299

## Discrepancy

SAL - Q4 - MAJOR REPAIR - CORROSION AT VERTICAL STABILIZER LEFT OUTBOARD ATTACHMENT BOLT AFT ATTACHMENT POINT.  REPLACED VERTICAL STABILIZER LEFT OUTBOARD ATTACHMENT BOLT AFT ATTACHMENT POINT IAW B737 AMM 55-30-00.

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