# SDR 8TNC202601220054

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 22, 2026
- Submitted: January 23, 2026
- Operation: General aviation
- Aircraft: [N405CP](https://openairdocs.org/aircraft/N405CP), registered now
- Make and model: Casa C212DF
- Aircraft serial: 405
- Aircraft time: 15,798 hours, 50,646 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Bent
- 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/8TNC202601220054

## Discrepancy

DURING ROUTINE OPERATIONS IN ANCHORAGE, AK (ANC), MAINTENANCE DISCOVERED DAMAGE TO THE ENDS OF LOWER FRAME 13 & 16 INNER FRAME T-CHORD FLANGES AT LBL19 & RBL19, NEAR THE SEAT TRACK SUPPORTS. THE T-CHORD FLANGE CORNERS WERE LOCALLY BENT DOWN WITH GOUGING ON THE TOP SIDE CAUSED BY CONTACT WITH A LONG FLOORBOARD SCREW DURING INSTALLATION. CRACKING WAS ALSO NOTED ALONG THE FILLET RADIUS OF THE FRAME T-CHORD ADJACENT TO THE DEFORMED AREAS. THE DAMAGE IS OUT OF LIMITS PER SRM APPENDIX B.

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