# SDR USAA2011101800050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2011
- Submitted: October 19, 2011
- Operation: Air carrier
- Aircraft: N458UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 25022
- Aircraft time: 55,601 hours, 36,547 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- 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/USAA2011101800050

## Discrepancy

DROP IN - CRACK ON FORWARD PRESSURE BULKHEAD AT BS 178, WL 218, LBL 12.5.  REPAIRED FORWARD PRESSURE BULKHEAD AT BS 178, WL 218, LBL 12.5 IAW B737-400 SRM 53-10-08 REPAIR 11.

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