As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR NOT UPLOCK ECAM WARNING ON TAKEOFF. REPLACED LGCIU 1 AND 2. REPLACE NLG CYLINDER PCN 644-9036 PER AMM 32-31-22. REFERENCES TSM 32-31-00-810-862 (DOWNLOCKED) AND 32-31-00-810-865. RPL PER AMM 32-31-22 AND ACP FUNCTIONAL TEST PER AMM 32-31-00-720-002-A AND 003A. ACP TEST 15 TIMES WITH NO FAULTS NOTED.