# SDR USAA2009102692877

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2009
- Submitted: October 26, 2009
- Operation: Air carrier
- Aircraft: N420US
- Make and model: Boeing 737401
- Aircraft serial: 23987
- Aircraft time: 56,663 hours, 38,371 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/USAA2009102692877

## Discrepancy

PIT - FPBH - MAJOR REPAIR - CRACK ON VERTICAL STIFFENER WEB AT BS 178, WL 188, LBL 17.  REPAIRED VERTICAL STIFFENER WEB AT BS 178, WL 188, LBL 17 IAW B737 SRM 53-10-08 REPAIR 12.

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