# SDR VNAA202608010010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2026
- Submitted: August 1, 2026
- Operation: Air carrier
- Aircraft: [N644NN](https://openairdocs.org/aircraft/N644NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15437
- Aircraft time: 15,145 hours, 15,678 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: CC670340953S
- 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/VNAA202608010010

## Discrepancy

CORROSION ON UPPER SIDE AND INSIDE OF THE FLOOR PANEL SUPPORT ANGLE WITH THE CROSSBEAM UNION AT FS280.00 BTW RBL 12.00 AND LBL 12.00.    FLOOR PANEL SUPPORT ANGLE WITH THE CROSSBEAM UNION AT FS280.00 BTW RBL 12.00 AND LBL 12.00 WAS EVALUTED FOUND OUT OF LIMITS PER SRM 53-21-43-101-001-A03 AND REPLACE PER SRM 51-42-21-06-001-001-A01 , SRM 51-42-21-001-001-A01 , SRM 51-42-10-001-001-A01

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