What was found
AFTER TAKEOFF CREW REPORTED THAT THE NOSE GEAR WOULD NOT RETRACT. CREW RETURNED TO PHX AND LANDED WITHOUT FURTHER EVENT. MAINTENANCE CONFIRMED THAT NLG DOOR ACTUATOR WAS BAD FROM STOCK. REMOVED AND REPLACED THE NOSE GEAR DOOR ACTUATOR IAW AIRBUS 320 SRM 32-31-16. OPERATIONAL AND LEAK CHECKS WERE GOOD. VENDOR CONFIRMED FAULT. CENTER TO CENTER ADJUSTMENT WAS OUT OF LIMITS. ADJUSTED THE CLOSE CENTERS TO 18.6800". ALLOWABLE CENTER LENGTH IS 18.7204" TO 18.6811". THE UNIT WAS TESTED AND RETURNED TO SERVICE IAW CMM 32-37-11 REV 2