# SDR USAA2009080492008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2009
- Submitted: August 4, 2009
- Operation: Air carrier
- Aircraft: N421US
- Make and model: Boeing 737401
- Aircraft serial: 23988
- Aircraft time: 55,840 hours, 37,729 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- 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/USAA2009080492008

## Discrepancy

PIT - FPBH - MAJOR REPAIR - 2 CRACKS ON BS 178 BULKHEAD WEB AT WL 233 & WL 228, RBL 17.  REPLACED BS 178 BULKHEAD WEB AT WL 233 & WL 228, RBL 17 IAW B737 SRM 53-10-08.

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