What was found
UPON APPR & GEAR EXTENSION THE NOSE, LT & RT MAIN GEAR GREEN & RED LIGHTS ILLUMIN. DOOR LIGHT WAS EXTINGUISHED, TAIL SKID LIGHT WAS ILLUMIN WITH S/O GEAR DOOR LIGHTS EXTINGUISHED. SECONDARY GEAR INDICATIONS INDICATED NORM DOWN & LOCKED ALL GEARS. CYCLED GEAR, LT GEAR & NOSE RETRACTED NORM. RT GEAR GREEN LIGHT EXTINGUISHED, RED LIGHT & DOORS LIGHT REMAINED ILLUMIN S/O RT GEAR LIGHT REMAINED ILLUMIN. ABOUT 45 SEC AFTER NOSE AND LT MAIN CYCLED UP, RT MAIN SUDDENLY RETRACTED WITH A THUMP AND ALL LIGHTS EXTINGUISHED. SELECTED GEAR DOWN, GEAR AND DOORS CYCLED DOWN NORM. FLY-BY, ALL APPEARED NORM. LANDING NORM. LUBED RT MLG, SWUNG GEAR SEVERAL TIMES, ALL INDICATIONS NORM IAW B727 MM 32-32-0.