As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER SELECTING THE GEAR LEVER UP WE GOT A GEAR DISAGREE AURAL WARNING AND CAS MESSAGE FOLLOWED BY A NOSE DOOR AURAL WARNING AND CAS MESSAGE. AFTER ABOUT 10 SECONDS THE NOSE GEAR MADE A CLUNKING SOUND AND STOWED ITSELF AND THE MESSAGES WENT AWAY. WHEN THE GEAR WAS SELECTED DOWN FOR LANDING THE GEAR OPERATED NORMALLY. REPLACED ACCUMULATOR AND #3 RESERVOIR. OPS CHECK GOOD. IAW CL650 MM AND 29-10-00.