What was found
MIA - FLT NR 0799 - AFTER T/O SJU, UNABLE TO RAISE LANDING GEAR LEVER FROM NEUTRAL TO UP POSITION WITH SYS 1 SELECTED. SELECTED SYS 2 AND LANDING GEAR RETRACTED NORMALLY. A/C PROCEEDED TO MIA AND LANDED W/O INCIDENT. PLACARDED SYS 1 AND WHEN A/C DEPARTED MIA, PROBLEM REPEATED. A/C RETURNED MIA AND LANDED WITHOUT INCIDENT. REPLACED LANDING GEAR PROXIMITY BOX DUE TO FAILED BITE CHK. ACCOMPLISHED FUNCTIONAL CHECK FLT AND PROBLEM REPEATED. REPLACED SUPPORT BRACKET AND TARGET AT RT MAIN LANDING GEAR BOGIE BEAM. SYS GROUND CHK NORMAL OPERATION. ACCOMPLISHED FUNCTIONAL CHK FLT AND LANDING GEAR OP CHECKED NORMAL USING SYS 1 AND SYS. REMOVED PLACARD FOR SYS 1 AND A/C RETURNED TO SERVICE. (M)