What was found
RETURNED & ACFT WAS GNDED. AFTER TAKEOFF & LG RETRACTION LG SHOCK ABSORBER FAULT, FOLLOWED BY AUTO FLT & AUTO THRUST FAULT. ACFT RETURNED WHERE THE ACFT LANDED SAFELY. FOUND TARGET FOR 24GA & 25GA TRAVELED PAST SENSOR DUE TO ATTACHMENT BOLT NOT SECURED. REPLACED ATTACH BOLT & LOCKING WASHER, ADJUSTED 24GA & 25GA IAW AMM 32-31-73-820-006-A & ACCOMPLISHED A SATISFACTORY NLG FUNCTIONAL TEST OF NORMAL EXTENSION & RETRACTION IAW AMM 32-31-00-720-003-A.