# SDR VNAA2026082523501

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2026
- Submitted: August 25, 2026
- Operation: Air carrier
- Aircraft: [N582NN](https://openairdocs.org/aircraft/N582NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15385
- Aircraft time: 24,526 hours, 21,515 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Part number: 533407
- Part serial: NGL131204
- Condition: Unserviceable
- Location: Zone 70
- Part time: 47,997 hours, 45,034 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2026082523501

## Discrepancy

GEAR DISAGREE MASTER WARNING / INTERROGATED MDC AND FOUND B1 CODE 005968. PERFORMED OPERATIONAL TEST OF THE LANDING GEAR EXTENSION/RETRACTION SYSTEM IAW AMM 32-30-00-710-801-A01. LANDING GEAR RETRACTION ON ALL GEARS FAILED ON MULTIPLE ATTEMPTS. TROUBLESHOT ALL GEAR SYS/NO GEAR IAW FIM 32-31-00-810-803-A01 AND FOUND LANDING GEAR SELECTOR VALVE V20 UNSERVICEABLE. REMOVED AND REPLACED LANDING SELECTOR VALVE IAW AMM 32-32-10-000/400-801-A01. PERFORMED OPS TEST OF THE LANDING GEAR EXTENSION/RETRACTION SYSTEM FOUR TIMES IAW AMM 32-30-00-710-801-A01. OP TEST GOOD. NO LEAKS NOTED. NO FURTHER DEFECTS NOTED.

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