# SDR CALA2026040215042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2026
- Submitted: April 2, 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: 141A81121
- 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/CALA2026040215042

## Discrepancy

MAIN CABIN FLOOR STRUCTURE WET AREA BETWEEN STA 312 AND 294.5 L1 INNER CHORD HAS CORROSION (DOT50-008) (REF AAR N/R 100013049) REMOVED AND INSTALLED MAIN CABIN FLOOR STRUCTURE L1 NEW INNER CHORD AS PER REF B737 SRM 51-40-02-0G-0. DWG141A8110.

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