As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED 140' SPLIT IN THE ALTIMETERS AT 14,000 FEET INDICATED ALTITUDE. REMOVED AND REPLACED PILOTS ALTIMETER. SUBSEQUENT BENCH CHECK FOUND ALTIMETER TO BE INDICATIN G135 FEET HIGH AT 12,000 FEET. THIS ALTIMETER HAD FLOWN FOR ONLY 2 FLIGHTS SINCE INSTALLATION. (M)