# SDR VNAA202511210017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2025
- Submitted: November 23, 2025
- Operation: Air carrier
- Aircraft: [N647NN](https://openairdocs.org/aircraft/N647NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15440
- Aircraft time: 14,326 hours, 14,759 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Housing
- Part number: CC670121116
- Condition: Corroded
- Location: Zone 600
- 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/VNAA202511210017

## Discrepancy

CORROSION ON THE MATING SURFACE OF THE PANEL ASSEMBLY FROM SS15.50 TO SS39.00 (ACCESS 621AB), AS WELL AS CORROSION ON MATING SURFACE OF LOWER EDGE OF ACCESS 621AT, RIGHT WING.   CORROSION ON THE MATING SURFACE OF THE PANEL ASSEMBLY FROM SS15.50 TO SS39.00 (ACCESS 621AB), AS WELL AS CORROSION ON MATING SURFACE OF LOWER EDGE OF ACCESS 621AT, RIGHT WING  WERE REPAIRED PER REO 690-57-21-541 REV. --, REO 690-57-41-550 REV. -- AND REO 690-57-41-554 REV. --, FRAME-HOUSING, LANDING AND TAXI LIGHT P/N CC670-12111-6 WAS REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01.

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