# SDR CALA2026032414805

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2026
- Submitted: March 24, 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: 147A55047
- 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/CALA2026032414805

## Discrepancy

PASSENGER CABIN AFT WET AREA FLOOR STRUCTURE FOUND CORROSION BETWEEN STA. 947.5 AND RBL-20 REF AAR N/R 100013085 REMOVED, FABRICATED NEW REPAIR PARTS (T CHORD, 2 ANGLE S, 2 STRAPS) AND REINSTALLED AT LBL 4 TO RBL 55 STA 947.5 REF B737-700 SRM 51-40-02-0G-0 , SRM 53-70-51-2R-5.

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