What was found
DURING CLIMB OUT, FLIGHT CREW RECEIVED A LANDING GEAR WOW SYSTEM FAIL EICAS MESSAGE. RETURNED TO DEPARTURE. MESSAGE CLEARED AFTER LANDING GEAR DEPLOYMENT. THE CREW DECLARED AN EMERGENCY. PERFORMED STRUT SERVICING IAW AMM 32-21-02. PERFORMED EXTENSION AND RETRACTION OF LANDING GEAR IAW AMM 32-33-02, NO MESSAGES PRESENT. NOSE LANDING GEAR STRUT LEAKING. LANDING GEAR STRUT STILL LEAKING. REMOVED AND REPLACED THE NLG SHOCK STRUCT SEALS IAW AMM 32-21-04. OK FOR SERVICE.