What was found
(AIRCRAFT NOT GROUNDED) AFTER TAKEOFF AND SELECTING GEAR UP. L/G NOT UPLOCKED ECAM OCCURRED WITH RED UNLOCK LIGHT ON NOSE GEAR INDICATION. PERFORMED ECAM ACTIONS, RECYCLED GEAR BUT MESSAGE PERSISTED. MOMENTARILY GOT L/G DOORS NOT CLOSED ECAM AS WELL WITH GEAR BACK DOWN, NO OTHER ABNORMAL INDICATIONS / PERFORMED T/S AND FOUND FAULTY NLG UPLOCK FAULTY IAW TSM A319 TASK CARD 32-31-00-810-865-A REPLACED NLG UPLOCK ASSY IAW AMM A319 TASK CARD 32-31-21-000-001-A AND TASK 32-31-21-400-001-A SATISFACTORY CONDITION. REFER TO COOPESA W/O A1P275 NRI 2-1 FOR DETAILS"