# SDR VNAA202508200019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2024
- Submitted: August 20, 2025
- Operation: Air carrier
- Aircraft: [N633NN](https://openairdocs.org/aircraft/N633NN), registered now
- Make and model: Bombdr CL6002D15
- Aircraft serial: 15377
- Aircraft time: 20,964 hours, 16,263 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: CC670340941S
- 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/VNAA202508200019

## Discrepancy

AFTER REMOTION OF FLOOR PANEL SUPPORT ANGLE.  CORROSION ON CROSSBEAM LH AT FS280.   CROSSBEAM LH AT FS280.00 WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01, SRM 51-42-10-001-001-A01 AND SRM 51-42-21-001-001-A01.

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