What was found
NORMAL TAKEOFF ROLL, UPON POSITIVE RATE, GEAR LEVER WAS SELECTED UP, IT APPEARED GEAR CYCLED UP HOWEVER RED "UNLOCK" LIGHT REMAINED ILLUMINATED. FOUND HYD FLUID LEVEL FULL AND NO LEAKS NOTED. PERFORMED GEAR SWINGS MULTIPLE TIMES IAW MM 32-01-00 AND COULD NOT DUPLICATE FAULT. PERFORMED INSPECTION OF MLG UPLOCKS AND FOUND MAIN GEAR UPLOCKS OUT OF ADJUSTMENT. ADJUSTED MAIN GEAR UPLOCK SWITCHES IAW MM 32-30-05. INSPECTED PCB'S NZ004, NZ009 & NZ017 IAW MM 20-21-03, NO DEFECTS NOTED. PERFORMED FLAP & 2 POSITION HORIZONTAL STAB CHECKED IAW MM 27-51-00 & 55-10-01, NO DEFECTS NOTED. PERFORMED SEVERAL MORE MLG SWINGS IAW MM 32-01-00, NO DEFECTS NOTED.