# SDR USAA2012112900011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2012
- Submitted: November 29, 2012
- Operation: Air carrier
- Aircraft: N435US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24557
- Aircraft time: 61,447 hours, 40,868 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 655287727
- Condition: Cracked
- 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/USAA2012112900011

## Discrepancy

Q3 CHECK - CRACK IN U-CHANNEL ABOVE L2 DOOR CUTOUT AT BS 978, S7L.  REPLACED U-CHANNEL ABOVE L2 DOOR CUTOUT AT BS 978, S7L IAW B737 SRM 51-40-02-0G, FIG 8 & 14.

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