# SDR USAA2012031900013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2012
- Submitted: March 20, 2012
- Operation: Air carrier
- Aircraft: N439US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24781
- Aircraft time: 57,277 hours, 39,520 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Stop Fitting
- Part number: 6396002
- 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/USAA2012031900013

## Discrepancy

C4 CHECK - 1 INCH CRACKS ON LEFT FORWARD EMERGENCY EXIT CUTOUT, FORWARD UPPER, AFT UPPER & AFT LOWER STOP PAD (BEARING PLATE).  REPLACED LEFT FORWARD EMERGENCY EXIT CUTOUT, FORWARD UPPER, AFT UPPER & AFT LOWER STOP PAD (BEARING PLATE) IAW BOEING DRAWING 69-37977 FLAGNOTE 3.

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