# SDR USAA2012122400019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2012
- Submitted: December 24, 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: 59,095 hours, 40,665 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Frame
- Condition: Cracked
- Location: Fuselage
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012122400019

## Discrepancy

CARGO DOOR/L1 INSP VISIT - CRACK IN FUSELAGE AFT L-1 DOOR FRAME INBOARD CHORD AT BS 348.2 BETWEEN S16L & S17L.  REPAIRED AFT L-1 DOOR FRAME INBOARD CHORD AT BS 348.2 BETWEEN S16L & S17L IAW TYPICAL REPAIR T/R 737-5300-12-0655.

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