# SDR CALA2026032414804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 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): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 141A5410139
- Condition: Cracked
- 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/CALA2026032414804

## Discrepancy

(59-5305-1-0003) MAIN CABIN FLOOR STRUCTURE WET AREA FLOOR SUPPORT AT BL0 BETWEEN STA 277 AND 294.5 HAS CRACK  .REF AAR NR 100013045. REMOVED AND REPLACED FLOOR SUPPORT(INTERCOSTAL) AT MAIN CABIN FLOOR STRUCTURE WET AREA AT BLO BETWEEN STA 277 AND STA 294.5 PER REF B 737 SRM-51-40-02-0G-0 AND DWG 141A5400.

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