# SDR CALA2026052216459

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2026
- Submitted: May 22, 2026
- Operation: Air carrier
- Aircraft: [N14240](https://openairdocs.org/aircraft/N14240), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28952
- Aircraft time: 80,188 hours, 31,170 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5700
- 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/CALA2026052216459

## Discrepancy

MAIN CABIN BS 987.5 FLOORBEAM IS CORRODED ON THE UPPER SURFACE AT APPROX RBL48 .   REMOVED DAMAGE ON UPPER CHORD REPLACED AND INSTALLED NEW UPPER CHORD FROM LBL50 TO RBL50 WL208 STA987.5 IAW SRM 53-70-51-2R-4, REPAIR 4, ALTERNATIVE 1.

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