# SDR CALA2026040615098

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2026
- Submitted: April 6, 2026
- Operation: Air carrier
- Aircraft: [N24736](https://openairdocs.org/aircraft/N24736), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28803
- Aircraft time: 81,552 hours, 28,632 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 147A55048
- 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/CALA2026040615098

## Discrepancy

PASSENGER CABIN AFT WET AREA FLOOORBEAM AT BS 947.5, LBL 45 FITTING AREAS FLANGE HAS EXFOLIATION CORROSION.  ACCOMPLISHED REPAIR AT AFT WET AREA FLOORBEAM BS 947.5, LBL 45 IAW SRM 53-70-51-2R-5, ESR 4-15014 AND ECRA 5370-01225.

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