# SDR USAA990247

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N507AU
- Make and model: Boeing 737-3B7
- Registry model: [Boeing 737-3B7](https://openairdocs.org/model/boeing-737-3b7) (OpenAirDocs)
- Aircraft serial: 23382
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Cracked
- Location: Bs 480
- Part time: 39,871 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA990247

## Discrepancy

CLT - DURING Q-3 CHECK VISUAL INSPECTION, FOUND A CRACK AT FRAME 480 STRINGER 8L AND 9L.  INSTALLED DOUBLER PER EA 64083.  (M)

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