What was found
AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER NOT DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT. DURING CLIMB NLG WOULD NOT RETRACT. FOUND NOSE STRUT LEAKING & BOTTOMED OUT CAUSING NO RETRACTION OF NOSE GEAR. R & R NOSE GEAR PISTON IAW AMM 32-21-02. ACCOMPLISHED NLG SWING. OK FOR SERVICE.