As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE RT MLG INDICATION WAS A YELLOW "X" AFTER STARTUP, GIVING AN "UNDETERMINED MLG POSITION". THE RT MLG INDICATOR WOULD INTERMITTENTLY FLASH "GREEN" AND THEN BACK TO A YELLOW "X". TROUBLESHOOTING CONFIRMED THAT THE RT MLG "UP" PROXIMITY SWITCH WAS NOT WORKING IN A CORRECT MANNER. THE RT MLG PROXIMITY SWITCH WAS REPLACED WITH A NEW SWITCH. GROUND TESTED SERVICEABLE.