What was found
PILOT REPORTED THAT WHEN THE GEAR WAS SLECTED DOWN, GEAR UNSAFE LIGHTS ILLUMINATED, & HOOK ENGAGED, LT CIRCUIT BREAKER POPPED, RAN CK, MANUALLY EXTENDED GEAR, UNSAFE LIGHTS WENT OUT. MX CYCL LANDING GEAR , FOUND LOOSE CONNECTOR PLUG ON RT GEAR, CLEANED AND RESECURRED, CYC GEAR TWICE, OPS CK GOOD IAW BMM 7-10-00 & 32-30-00.