# SDR VNAA20260329009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2026
- Submitted: March 29, 2026
- Operation: Air carrier
- Aircraft: [N643NN](https://openairdocs.org/aircraft/N643NN), registered now
- Make and model: Bombdr CL6002D15
- Aircraft serial: 15436
- Aircraft time: 14,966 hours, 15,357 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: CC670340953S
- Condition: Missing
- 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/VNAA20260329009

## Discrepancy

CORROSION ON FLOOR PANEL SUPPORT ANGLE FS 280.0, RBL 12 TO LBL 12 AT COCKPIT.   FLOOR PANEL SUPPORT ANGLE FS 280.0, RBL 12 TO LBL 12 AT COCKPIT WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 AND SRM 51-42-21-001-001-A01

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.