# SDR CALA2026040715139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2026
- Submitted: April 7, 2026
- Operation: Air carrier
- Aircraft: [N37290](https://openairdocs.org/aircraft/N37290), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31601
- Aircraft time: 67,150 hours, 25,079 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5506
- 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/CALA2026040715139

## Discrepancy

PREVIOUS REPAIR WAS FOUND MULTIPLE POINTS OF CORROSION ON AFT WET AREA,  FLOORBEAM 986.5, LBL 43 & RBL 45.  REPAIRED THE FLOORBEAM IAW SRM 53-70-51-2R-4.

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