# SDR USAA2013080800024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2013
- Submitted: August 8, 2013
- Operation: Air carrier
- Aircraft: N449US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24893
- Aircraft time: 60,988 hours, 40,383 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer Splice
- Part number: 65516982
- Condition: Cracked
- Location: Zone 200
- 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/USAA2013080800024

## Discrepancy

DURING Q3 CHECK, FOUND A CRACK ON STRINGER SPLICE AT BS 907, S4L. REPLACED STRINGER SPLICE IAW SRM 51-40-02 & DWG 65-45772.

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