What was found
CREW REPORTS GEAR DISAGREE WARNING MESSAGE APPEARED AFTER GEAR RETRACTION. NOSE GEAR INDICATION WAS ABNORMAL. RETURNED TO PHX. DECLARED EMERGENCY. NO OVERWEIGHT LANDING OCCURED. FLIGHT 2959 CLOSEDFOUND THE NOSE GEAR SHOCK STRUT TO BE FULL COMPRESSED UPON ARRIVAL. SERVICED THE NOSE GEAR WITH NITROGEN AND OIL. REF. CRJ700 AMM. JACKED AIRCRAFT. REF. CRJ700 AMM. PERFORMED THE OPERATIONAL TEST OF THE LANDING GEAR SYSTEM SEVERAL TIMES. REF. CRJ700 AMM. NOSE GEAR OPERATED NORMAL EVERY TIME. AIRCRAFT OK FOR SERVICE AT THIS TIME.