What was found
CLT - FLT 1929 - EN ROUTE PIT/SJU, CAPTAIN'S AIRSPEED INDICATOR, ALTIMETER, A-SYSTEM AUTOPILOT, GPWS AND VHF COMMUNICATION HAD FAILED OR WERE WORKING INTERMITTENTLY. CREW OBSERVED NO CIRCUIT BREAKERS WERE TRIPPED. FLIGHT DIVERTED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANCE REMOVED AND REPLACED THE NR 1 AIR DATA COMPUTER. OPERATIONAL CHECK GOOD. (X)