What was found
GEAR DISAGREE WARNING MESSAGE. RAN QRH. THREE GREEN INDICATION, LANDED AND TAXIED TO GATE. MEL 32-30-1CAT A DUE ONE FLIGHT DAY 12/04/25 CAT II DOWNGRADED, ODI EVENT, SMOD APPROVAL REQUIRED FOR RTS. RUNWAY AND WX CONDITIONS WERE: MINOR BLOWING SNOW FROM CROSSWIND. PATCHES OF SNOW. RUNWAY CLEAN. ABNORMAL INDICATION SUSPECTED TO HAVE COME FROM NOSE GEAR REF EAML 1763353 FOR PSEU FAULT LOG OBSERVED FROM OCM AT TIME OF ODI EVENT. GEAR DISAGREE? WARNING MESSAGE. RAN QRH. THREE GREEN INDICATION, LANDED AND TAXIED TO GATE. (FLIGHT 5100) DEFERRED MLG RETRACTION SYS IAW MEL 32-30-1, MX ACTIONS C/W PLACARDS INSTALLED. CAT II DOWNGRADED REF EAML 1763353 FOR PSEU FAULT.