What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: CAPTAINS PRIMARY FLIGHT DISPLAY (PFD) FLASHED INTERMITTENTLY SHORTLY AFTER TAKEOFF. BOTH AMBER SPEED AND ALTITUDE DISPLAYED ON CAPTAINS PFD. ACFT AIR INTERRUPTED BACK & LANDED SAFELY AT DEN. CAPTAIN'S AOA SENSOR FAULTED, R & R LT AOA SENSOR (AALA202602186718), PER AMM 34-21-05. R & R LT PITOT AIR DATA MODULE (AALA202603061844) & LEFT HAND STATIC AIR DATA MODULE (AALA202603064269), PER AMM 34-21-04. REMOVE AND REPLACED FLIGHT CONTROL COMPUTER-A (AALA202603068381), PER AMM 22-11-33. REMOVE & REPLACED NUMBER 1 (ADIRU)-AIR DATA INERTIAL REF UNIT (AALA202603067992), PER AMM 34-21-01. ALL REQUIRED OPS CHECK & TESTS ARE GOOD.