# SDR UATA2020022625304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2020
- Submitted: February 27, 2020
- Operation: Air carrier
- Make and model: Casa C212CC
- Aircraft serial: 190
- Aircraft time: 30,550 hours, 39,968 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Frame 11
- Part time: 30,550 hours, 39,968 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/UATA2020022625304

## Discrepancy

FRAME 11 FLOOR BEAM HAS HEAVY MILLED GUSSETS THAT TIE THE FRAME 11 FLOOR BEAM TO THE FRAME 11 SIDE WALL, BOTH FWD AND AFT OF THE BEAM, ON THE LH AND RH SIDES OF THE BEAM.  THERE ARE NUT PLATES CLOSE TO THE ENDS OF THE GUSSETS, AND CORROSION WAS FOUND IN THE GUSSETS WHERE THE NUT PLATE ATTACHED.  THE RH SIDE GUSSETS WERE WITHIN OEM ACCEPTABLE LIMITS, BUT THE LH SIDE GUSSETS HAD CORROSION BEYOND THE OEM LIMITS.  THE OEM ENGINEERED A REPAIR SCHEME FOR THE CORRODED LOCATIONS, WHICH WAS ACCOMPLISHED.

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