As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GREEN HYD RESERVOIR SHOWED SLOW DECREASE IN FLT. OVERHEAD GAUGE SHOWED NEEDLE ALMOST TOUCHING RED DOT. WHEN GEAR WAS LOWERED LEVEL CAME UP HALFWAY TO HAT. LEVEL WAS DROPPING ABOUT 1 NEEDLE WIDTH EVERY 20-30 MINUTES. HYD PRESS WAS GOOD THE ENTIRE TIME. REMOVED AND REPLACED CASE DRAIN LINE, P/N AE705925-24, LOWER PUMP CASE DRAIN HOSE ASSY IPC 29-11-01 FIG 2 ITEM 50. REF AMM 29-11-69-04-03 AND 29-11-36-04-03.