What was found
AIRCRAFT WAS ON SHORT FINAL WHEN VACUUM PUMP FAILED. AFTER INSPECTION AND REMOVAL OF THE VACUUM PUMP, THE SHEAR SHAFT HAD SHEARED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS ON SHORT FINAL WHEN VACUUM PUMP FAILED. AFTER INSPECTION AND REMOVAL OF THE VACUUM PUMP, THE SHEAR SHAFT HAD SHEARED.