# SDR CALA2026040715133

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2026
- Submitted: April 7, 2026
- Operation: Air carrier
- Aircraft: [N73291](https://openairdocs.org/aircraft/N73291), registered now
- Make and model: Boeing 737824
- Aircraft serial: 33454
- Aircraft time: 64,569 hours, 23,626 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A5504
- 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/CALA2026040715133

## Discrepancy

LEFT WET AFT AREA FLOORBEAM CORRODED AROUND LAV. AFT HARD POINT AT STA 947.5  LBL 52. (REF AAR NR 100020942) ACCOMPLISHED FLOOR BEAM REPAIR AT STA 947.5 LBL 52 AS PER SRM 53-70-51-2R-5.

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