What was found
D; ON DEPARTURE WHEN GEAR LEVER SELECTED UP, WARNING MESSAGES NOSE DOOR AND GEAR DISAGREE. QRH PROCEDURE RESULTED IN DOWN 3 GREEN. RETURNED TO LAND AT DENVER TAXIIED BACK WITHOUT ISSUE.C; DEFERRED LANDING GEAR RETRACTION SYSTEM REF CRJ200 MEL 32-30-1. MX ACTION COMPLIED WITH AND PLACARDS INSTALLED. DOWNGRADED FROM CAT II SERVICE. GEAR PIN FLAGS STOWED IN THE SPARE BULB KIT.CAT A; DUE 10/03/2023*** DUE TO RTF BEING ODI EVENT, SMOD APPROVAL REQUIRED BEOFRE RTS.ON DEPARTURE WHEN GEAR LEVER SELECTED UP, WARNING MESSAGES NOSE DOOR AND GEAR DISAGREE. QRH PROCEDURE RESULTED IN DOWN 3 GREEN. RETURNED TO LAND AT DENVER TAXIIED BACK WITHOUT ISSUE. (FLIGHT 5042 FILED CLOSED)OCT 02, 2023 STATION: DEN--DEFERRED LANDING GEAR RETRACTION SYSTEM REF CRJ200 MEL 32-30-1. MX ACTION COMPLIED WITH AND PLACARDS INSTALLED. DOWNGRADED FROM CAT II SERVICE. GEAR PIN FLAGS STOWED IN THE SPARE BULB KIT.