What was found
(CAN) DURING TAXI AND GROUND OPERATION THE ALTIMETER WOULD SHOW A DISCREPANCY TO AIRPORT ALTITUDE. INSTRUMENT REPLACED AND SHOP CHECK FOUND FAULT WITH THE DIAPHRAGM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) DURING TAXI AND GROUND OPERATION THE ALTIMETER WOULD SHOW A DISCREPANCY TO AIRPORT ALTITUDE. INSTRUMENT REPLACED AND SHOP CHECK FOUND FAULT WITH THE DIAPHRAGM.