What was found
AFTER TAKEOFF FROM MSP EN ROUTE FOR LAS RECEIVED ECAM MESSAGE NOSE LANDING GEAR (NLG) SHOCK ABSORBER FAULT, TURNED BACK TO MSP AND LANDED WITHOUT FURTHER EVENT. MAINTENANCE MET AIRCRAFT BACK AT GATE AND FOUND THE NLG SHOCK ABSORBER FLAT. SERVICE NLG SHOCK STRUT AND CHECKED FOR LEAKS NONE WERE FOUND. OBSERVED STRUT FOR HALF AN HOUR WITH NO FLUID LOSS OR DEFLATION NOTED. ENGINEERING WROTE A FOLLOW UP AND WHEN THE AIRCRAFT ARRIVED IN PHX IT WAS TOWED TO THE HANGAR FOR A NLG STRUT REPACK. UPON DISASSEMBLY FOUND SCRAPER SEAL ON UPPER CAM TORN. REPACKED NOSE STRUT IAW T/C R4N32305, SERVICED AND CHECKED FOR LEAKS.