What was found
(CAN) PILOT REPORTED LOST INDICATION OF VACUUM AND LOST VACUUM ACTIVATION FLIGHT INSTRUMENTS. MAINTENANCE FOUND PROBLEM TO BE THE SHEARED SHAFT OF THE VACUUM PUMP. SUBMITTER STATES THAT THE PUMP SHOWED SIGNS OF OVERHEATING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) PILOT REPORTED LOST INDICATION OF VACUUM AND LOST VACUUM ACTIVATION FLIGHT INSTRUMENTS. MAINTENANCE FOUND PROBLEM TO BE THE SHEARED SHAFT OF THE VACUUM PUMP. SUBMITTER STATES THAT THE PUMP SHOWED SIGNS OF OVERHEATING.