As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 616 - ACY - AUTO PILOT PITCH CONTROL PORPOISES DURING CLIMB AND DESCENTS AND WILL NOT HOLD ALTITUDE ALL OTHER FUNCTIONS OK FLT 616. REMOVED AND REPLACED AIR DATA COMPUTER PERFORMED PITOT STATIC LEAK CHECK. GROUND CHECK OK AT THIS TIME. (M)