What was found
GEAR WOULD NOT RETRACT AFTER TAKEOFF. GEAR HANDLE WAS LOCKED IN DOWN POSITION. 3 GREEN GEAR DOWN LIGHTS WERE ILLUMINATED, NO RED UNSAFE LIGHTS ILLUMINATED. FOUND NOSE GEAR DID NOT FULLY EXTEND. PUSHED NOSE GEAR INTO POSITION. FOUND UPPER AND LOWER CHAMBERS 25 PSI LOW. SERVICED STRUT IAW MM 12-10-38, REV 41. OPS CHECKED GOOD.