# SDR USAA2013092400010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2013
- Submitted: September 24, 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): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Angle
- Condition: Corroded
- Location: Zone 100
- 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/USAA2013092400010

## Discrepancy

Q3 CHECK,  CORROSION FOUND ON LT AFT EMERGENCY DOOR UNDER LOWER MAIN PRESSURE SEAL ANGLE BETWEEN BS 616 TO 633.  REPLACED SEAL ANGLE IAW SRM 52-20-02 & DWG 50-7978.

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