What was found
ON TAKEOFF WHEN GEAR HANDLE RAISED, RECEIVED HYDRAULIC 3 LOW PRESS, CAUTION MSG, COULD HEAR THAT GEAR WAS IN TRANSIT, BUT TOOK ABOUT 40+ SECONDS TO NOSE GEAR UP. WHEN IT LOCKED UP, WE RECEIVED, MASTER WARNING, GEAR DISAGREE APPROXIMATELY 10 SECONDS LATER. COMPLIED WITH PA05-018 REV K SCENARIO 1 FOUND EXCESSIVE AIR IN HYD SYS NR 3 BLEED HYD SYS NR 3 IAW AMM 29-10-00. PERFORMED MULTIPLE GEAR SWINGS IAW AMM 32-30-00. ALL OPERATIONS CHECKED GOOD.