What was found
ON LANDING, MLG RETRACTION ON CLIMB OUT AFTER TAKEOFF, BUSS TIE BREAKER TRIPPED, MLG WOULD NOT RETRACT. PILOT FOLLOWED APPROPRIATE CHECKLIST, PLACED MLG BACK IN DOWN POSITION AND LANDED UNEVENTFULLY. MX INVESTIGATED THE MALFUNCTION AND REMOVED LT WING TO FUSELAGE UPPER FAIRING TO ACCESS HYD MOTOR. MOTOR REMOVED AND IT WAS DETERMINED THAT THE SHAFT WOULD NOT ROTATE. MOTOR ALSO SHORTED, THERE WAS LESS THAN ONE OHM OF RESISTANCE BETWEEN POSITIVE LEAD AND THE MOTOR CASE. COMPOSITE FAIRING WAS BURNED IN A 70 X 110 MILLIMETER DIAMETER SECTION, FROM EXCESSIVE HEAT GENERATED DUE TO EXCESSIVE CURRENT DRAW THROUGH HYD MOTOR SOFT START RESISTOR. HYD MOTOR WAS REPLACED IAW MM AND FAIRING WAS REPAIRED IAW THE SRM.