As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON T/O LOST BOTH CAPT AND F/O AIRSPEED AND ALTIMETER. CAPTS FROZE, NO FLAGS. F/O HAD FLAGS IN VIEW. FOUND HOSES OFF NR 1 ADC. RECONNECTED HOSES, BOTH WERE SECURE. PERFORMED TEST ON ADC CHECKS OK. F/O ADC HAD FAILED. REPLACED SAME, TEST OK.