What was found
LANDING GEAR DISAGREE WARNING ON APPROACH. RAN QRH AND CYCLED GEAR HANDLE BUT GEAR STAYED UP. PERFORMED GEAR MANUAL EXTENSION. REMOVED AND REPLACED LANDING GEAR SELECTOR VALVE IAW CRJ AMM 32-32-10. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LANDING GEAR DISAGREE WARNING ON APPROACH. RAN QRH AND CYCLED GEAR HANDLE BUT GEAR STAYED UP. PERFORMED GEAR MANUAL EXTENSION. REMOVED AND REPLACED LANDING GEAR SELECTOR VALVE IAW CRJ AMM 32-32-10. OPS CHECK GOOD.