As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB LANDING GEAR RETRACTED NORMALLY BUT EXTENDED UNCOMMANDED WHEN GEAR HANDLE WAS PLACED IN THE OFF POSITION. EMERGENCY DECLARED. LANDING UNEVENTFUL. THE AIRCRAFT WAS GROUNDED. MAINTENANCE ADJUSTED GEAR SELECTOR VALVE IAW 32-31-00. ACCOMPLISHED SUCCESSFUL GEAR SWING IAW 32-32-00.