What was found
PDIS: AFTER T/O DEL, RT MAIN GEAR UNSAFE INDICATION AFTER RETRACTION ON BOTH PRIMARY AND SECONDARY. CYCLE GEAR PER CK LIST, NO HELP. FELT VIBRATION AT 230KTS WHILE WORKING CK LIST AFTER APPROX 10 MIN VIBRATION STOPPED, INDICATION WENT TO SAFE, LIGHT OUT. CHECK ADJ OF RT MLG UPLATCH. RT MLG DOOR LINK AND BRACKET ASSY PER MM FOUND ON THE LIMITS. ADJUSTMENT MADE AS PRECAUTIONARY MEASURE ONE NOTCH O/B. WIRING, CONNECTORS CHECKED ALL FOUND NORMAL. PSEU FAIL TEST 31-71-04-00 ITEM 4. TEST FAIL. REMOVED AND REPLACED PSEU PER MM 31-71-01, ALL TEST PASS. RETURN TO SERVICE.