What was found
CRUISE FLIGHT AT 5,500 FEET, PILOT HEARD A BANG. NO ABNORMAL ENGINE CHANGES. AIRSPEED DROPPED 10-15 KNOTS. PILOT DECIDED TO LAND AT NEAREST AIRPORT. LANDING GEAR WOULD NOT EXTEND. FLY-BY SHOWED GEAR HANGING. MANUAL EXTENSION WOULD NOT LOWER GEAR. PILOT LANDED ON BELLY OF AIRCRAFT. FOUND UP LINE HOSE TO NOSE GEAR ACTUATOR BURST.