As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SELECTING LANDING GEAR UP LEFT DOOR ADVISORY LIGHT REMAINED ILLUMINATED. F/A VISUALLY VERIFIED DOOR TO BE OPEN APPROXIMATELY 1 INCH. TROUBLESHOT, FOUND CENTER MAIN GEAR DOOR ACTUATOR AT FAULT. REMOVED AND REPLACED ACTUATOR IAW DHC MM PROCEDURES. OPERATIONAL CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)