# SDR USAA010750

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2001
- Submitted: July 19, 2001
- Operation: Air carrier
- Aircraft: N409US
- Make and model: Boeing 737401
- Aircraft serial: 23879
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Fuselage
- Part time: 37,497 hours
- 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/USAA010750

## Discrepancy

CLT - FOUND BULKHEAD WEB WITH FOUR CRACKS, 1 WAS .125 INCH, AND 3 WERE .5 INCH, BS 178 WL 189 TO 203, LBL 5.5 TO RBL 5.7.  DAMAGE REMOVED, REPAIR DOUBLER INSTALLED PER EO 5300V153 AND SRM 53-10-08.  (M)

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