# SDR CALA2025120911935

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2025
- Submitted: December 9, 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): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A56766
- Condition: Corroded
- Location: Zone 200
- 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/CALA2025120911935

## Discrepancy

CORROSION AFT WET AREA  LATERAL PANEL BREAK BS 947.5+4 BETWEEN RBL 27 AND 49.  REMOVED AND REPLACED FLOORBEANM AT BS 947.5+4.0", BETWEEN RBL-27 AND RBL-49, IAW SRM 51-40-02-0G-0 AND DWG 147A5650.  REMOVED AND REPLACED FLOORBEAM, BS 947.5+4.0", BETWEEN RBL 27 AND RBL 49, IAW SRM 51-40-02-0G-0 AND DWG 147A5650.

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