# SDR CALA2026011212874

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2026
- Submitted: January 12, 2026
- Operation: Air carrier
- Aircraft: [N54241](https://openairdocs.org/aircraft/N54241), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28953
- Aircraft time: 79,178 hours, 29,560 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- 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/CALA2026011212874

## Discrepancy

B737-53-3-0711   MAIN CABIN AFT WET AREA, FLOOR BEAM HAS CORROSION ON UPPER SURFACE AT BS 947 APPROX LBL51. TRANSCRIBED FROM AAR GSO NRC 9280214.  REMOVED EXISTING REPAIR FROM FLOORBEAM, FABRICATED AND INSTALLED REPAIR IAW B737 SRM 53-70-51-2R, REPAIR 5 DETAIL A.

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