As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - PUSHER SYSTEM FAIL LIGHT ILLUMINATES WHEN AC GENERATORS COME ON LINE. FOUND "L AOA VANE" CB POPPED, POPPED AGAIN WHEN RESET. REMOVED AND REPLACED THE LT AOA TRANSDUCER PER Q400 AMM TASKS 27-33-226-000-801 AND 27-33-26-400-801. FUNCTIONAL TEST GOOD. RETURNED TO SERVICE.