What was found
AIRCRAFT LOST HYDRAULIC PRESSURE. UNEVENTFUL LANDING EXECUTED. REPLACED LEAKING NOSE GEAR RETRACT LINE. REPLACED BOTH ENGINE DRIVEN HYDRAULIC PUMPS AS A PRECAUTIONARY MEASURE. REPLACED HYDRAULIC SYSTEM FILTERS. SERVICED EMERGENCY AIR BOTTLE. C/W RETRACTION CHECKS. RAN ENGINES, BLED SYSTEM AND LEAKED CHECKED. ALL WORK ACCOMPLISHED IAW LEARJET MODEL 23 SM.