# SDR USAA960632

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N437US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24559
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Condition: Cracked
- Location: Bs 178
- Part time: 19,323 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA960632

## Discrepancy

INT - DURING Q-6 CHECK VISUAL INSPECTION, FOUND TWO .375 INCH CRACKS STATION 178 PRESSURE BULKHEAD RBL 4.75 INCH, ONE AT 6 INCHES BELOW FLOOR LEVEL AND ONE AT 8.5 INCHES BELOW FLOOR LEVEL.  INSTALLED FILLER AND DOUBLER.  REPAIRED PER TR 53-10-07.  (M)

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