# SDR USAA040891

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2004
- Submitted: December 10, 2004
- Operation: Air carrier
- Aircraft: N516AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23702
- Engine: Cfmint CFM563B2
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Stiffener
- Condition: Cracked
- Location: Wing
- Part time: 52,364 hours
- 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/USAA040891

## Discrepancy

PIT- Q6 - VERTICAL STIFFENER, 1.2500 INCH CRACK, AT RBBL 6.15, STA 663.75.  REPLACED VERTICAL STIFFENER IAW EA 79313 AND EO 5704V245 (RAFT).

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