# SDR UATA2420127265305

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 2026
- Submitted: January 27, 2026
- Operation: Air carrier
- Aircraft: [N424CA](https://openairdocs.org/aircraft/N424CA), registered now
- Make and model: Casa C212200
- Aircraft serial: 242
- Aircraft time: 35,730 hours, 64,624 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Collapsed
- Location: Zone 200
- Part time: 35,730 hours, 64,624 cycles
- 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/UATA2420127265305

## Discrepancy

- F15 WEB SAGGING UNDERFLOOR - REMOVED FRAME15 TOP CAP AND FABRICATED A NEW CAP FROM 2024 T351 ALUMINUM "T" ANGLE, 0.084 THICK, 38.5 INCHES LONG. STRAIGHTENED OUT THE WEB ON FRAME 15. FABRICATED A DOUBLER FROM 2024 T3, 0.032" THICK MEASURING 38.5" LONG X 3 1/4" TALL WITH A 1/4" FLANGE ALONG THE BOTTOM EDGE. ETCHED AND ALODINED THE FABRICATED PARTS AND PRIMED WITH SUPER KOROPON EPOXY PRIMER. INSTALLED THE "T" ANGLE AND THE DOUBLER ON THE AFT SIDE OF THE WEB USING MS20470AD-4 AND MS20470AD-5 RIVETS. ALL WORK PERFORMED IAW THE CASA 212 SRM, SECTION IV FIG. 4.16 AND APPENDIX II FIG. B22 AS WELL AS AC43.13-1B, PARA. 4-57. SEE FAA FORM 337 DATED DEC. 8, 2025.

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