What was found
"DURING CLIMBOUT ABOUT 4000' WE GOT AN A/S DISAGREE EICAS MSG WITH A 6-7 HT DIFFERENCE BETWEEN CAPT + STBY. FO + STBY AGREED, THEN AROUND 13000-14000 WE GOT AN ALT DISAGREE MSG, I SWITCHED AIRDATA SW TO ALT AND EVERYTHING WENT BACK TO NORMAL, TILL 17500, CONTINUED CLIMB TO 370 AND THE DIFFERENCE BETWEEN ALTIMETERS TO 800' AND A/S 20KTS. DURING CLIMB TO 370 STARTED GETTING INTERMITTENT AILERON LOCKOUT + RUDDER RATIO EICAS . (ATB)AC RETURNED TO FIELD AND LANDED ,MTX GROUNDED AC REMOVED AND REPLACED RIGHT LOWER PITOT PROBE, REF B767 AMM 34-11-01. LEAK & HEAT CHECKS, GOOD. IARCRAFT REMAINS RYSM COMPLIANT.LP: 39041-27/1 MTX RETURNED AC TO SERVICE. "