What was found
UPON GEAR RETRACTION AFTER T/O GEAR RETRACTED NORMALLY WHEN GEAR HANDLE PLACED IN UPLATCH CHECK POSITION NOSE GEAR SOUNDED LIKE IT FELL OUT OF THE WHEEL WELL AND BOTH RED LIGHTS FOR DOORS NOT LATCHED AND GEAR NOT LATCHED ILLUMINATED. CREW THOUGHT THEY HAD MISSED THE UPLATCH DETENT BY GOING TOO FAR TOWARD DOWN GEAR WAS FULLY LOWERED AND GOT 3 GREEN LIGHTS. WHEN GEAR RETRACTED 2ND TIME RED LIGHTS ILLUMINATED AGAIN AND HYDRAULIC QTY AND PRESS RAPIDLY DECREASED TO STAND PIPE INDICATION. REPLACED BROKEN RUDDER PUMP SUPPLY LINE, PERFORMED GEAR SWING AND UPLATCH CK. OPS CK GOOD IAW DC-8 M/M 32-30-0, NO OTHER DEFECTS NOTED.