# SDR CALA2025122212297

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2025
- Submitted: December 22, 2025
- Operation: Air carrier
- Aircraft: [N27734](https://openairdocs.org/aircraft/N27734), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28949
- Aircraft time: 81,402 hours, 28,609 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 148A2261U26
- Condition: Corroded
- Location: Zone 100
- 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/CALA2025122212297

## Discrepancy

FOUND CORROSION SPOTS  AT AFT WET AREA AFT PRESSURE BULKHEAD LOWER WEB FROM INBD TO OTBD  BS 1016.  REPLACED MAIN CABIN AFT PRESSURE BULKHEAD, LOWER SEAL ZEE ANGLE SUPPORT, IAW SRM 51-40-02-OG-0, AND DWG 148A0922.

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