What was found
LANDING GEAR FAILED TO EXTEND. FOUND LANDING GEAR DOOR OPEN SWITCH (LEFT) DEFECTIVE. PERFORMED GEAR FREEFALL. THIS IS SECOND OCCURRENCE OF LEFT SWITCH ON THIS AIRCRAFT. PREVIOUS FAILURE AT ACFT TT, 1,096.5 HRS. CURRENT ACFT TT, 1,473.3 HRS. VENDOR P/N 41EN106.