What was found
WHEELS WILL NOT COME UP AFTER T/O IAW PROC, RETURNED. DID NOT RECEIVE AN ECAM MESSAGE OR CHIME. NO WARNING. R & R LANDING GEAR NORMAL CONTROL SWITCH UNIT IAW 32-31-11-04. T/S IAW TSM 32-30-00, FIG 1091, FIG 107 AND TECH. PERFORMED MLG SAFETY CONTROL TESTS IAW A300-32-31-11-04. ALL TEST NORMAL AS REQUIRED.