# SDR USAA010511

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2001
- Submitted: June 4, 2001
- Operation: Air carrier
- Aircraft: [N423US](https://openairdocs.org/aircraft/N423US), registered now
- Make and model: Boeing 737401
- Aircraft serial: 23990
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Fuselage
- Part time: 34,934 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/USAA010511

## Discrepancy

CLT - FOUND PRESSURE BULKHEAD WEB WITH THREE CRACKS, .125 INCH, .250 INCH AND .85 INCH, BS 178 WL 188 AND WL 234 RBL .5 TO LBL 12.  DAMAGE CUTOUT, INSTALLED FILLERS AND REPAIR DOUBLER PER SRM 53-10-08 FIG 209, EO 5300V153 AND EA 69580.  (M)

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