What was found
BOS - CREW REPORTED CAPTAINS ALTIMETER FAILED DURING CLIMB. FLIGHT RETURNED BOS LANDED WITHOUT INCIDENT. REPLACED CAPTAINS ALTIMETER. SYSTEM GROUND CHECK NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOS - CREW REPORTED CAPTAINS ALTIMETER FAILED DURING CLIMB. FLIGHT RETURNED BOS LANDED WITHOUT INCIDENT. REPLACED CAPTAINS ALTIMETER. SYSTEM GROUND CHECK NORMAL OPERATION.