What was found
LANDING GEAR DID NOT EXTEND. AT 160KTS ATTEMPTED TO PUT GEAR DOWN. GEAR NEVER EXTENDED. LANDING GEAR UNLOCK LIGHTS NEVER WENT OUT. ECAM MESSAGE APPEARED. WENT AROUND, FOLLOWED ECAM, LANDING GEAR EXTENDED NORMALLY, ALL OPERATIONS NORMAL,-R/R NOSE DOOR ACTUATING CYLINDER IAW AMM 32-31-16 PERFORMED FUNCTIONAL TEST OF CYLINDER AND NLG DOORS . NO FAULTS WERE NOTED . A/C OK FOR SVC.