As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTITUDE DISAGREE TWO TIMES DURING DESCENT. FO ALTIMETER MATCHED THE STANDBY AND WAS 400 FEET DIFFERENT THAN CAPTAINS AMM: 34-12-01-4 REMOVED AND REPLACED CAPTAINS ADC. GROUND TEST NORMAL. PARTS INPUT WRI 34-16/ 7188. AMM: 34-12-01-4 REMOVED AND REPLACED CAPTAINS ADC. GROUND TEST NORMAL. PARTS INPUT WRI 34-16/ 7188.