# SDR USAA2013020700001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2013
- Submitted: February 7, 2013
- Operation: Air carrier
- Aircraft: N440US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24811
- Aircraft time: 59,057 hours, 40,381 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Stringer
- Part number: 6545776
- Condition: Corroded
- Location: Fuselage
- 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/USAA2013020700001

## Discrepancy

Q6 CHECK - LEVEL 2 EXFOLIATION ON STRINGER S26R AT BS 963.5.  REPAIRED STRINGER S26R AT BS 963.5 IAW B737 SRM 53-00-03-2R-1, FIG 201.

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