As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER'S (FO) ALTIMETER ERRATIC; READS + 500 FT AT TIMES. REMOVED AND REPLACE NR 2 DIGITAL AIR DATA COMPUTER IN ACCORDANCE WITH M/M 34-16-01. PERFORMED OPERATIONAL CHECK IN ACCORDANCE WITH M/M 34-16-00, FOUND NORMAL. ALSO PERFORMED PITOT STATIC LEAK CHECK IN ACCORDANCE WITH M/M 34-11-00, NO LEAKS NOTED.