What was found
RECEIVED GEAR DISAGREE AFTER SELECTING GEAR HANDLE UP. AFTER SELECTING GEAR DOWN, WAITED A LONGER THAN NORMAL FOR 3 GREEN DOWN AND LOCKED INDICATIONS. DECLARED AN EMERGENCY AND LANDED. FLIGHT 3126 CLOSED "UPON INSPECTION OF AIRCRAFT FOUND NLG SHOCK STRUT FULLY COMPRESSED. PERFORMED NLG PISTON/AXLE STRUT SEAL REPACK REFERENCING AMM. PERFOMED FULL SERVICING (OIL AND NITROGEN) OF THE NLG SHOCK STRUT WITH AIRCRAFT ON JACKS REFERENCING AMM. LEAK CHECK GOOD. PERFORMED OPS CHECK OF THE LANDING GEAR EXTENSION AND RETRACTION SYSTEM REFERENCING AMM. OPS CHECK GOOD FOUND NO FAULTS OR DEFECTS AT THIS TIME. OK FOR SERVICE."