# SDR USAA2011122800002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2011
- Submitted: December 28, 2011
- Operation: Air carrier
- Aircraft: N456UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 25020
- Aircraft time: 55,914 hours, 36,972 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Structure
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011122800002

## Discrepancy

FPBH & CDFI DROP IN - CRACK ON INNER CHORD AT BS 616, S16R, WL 208, RBL 45.5.  REPLACED INNER CHORD AT BS 616, S16R, WL 208, RBL 45.5 IAW B737-400 SRM 51-40-02.

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