As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE PILOTS WERE TAXIING OUT TO THE RUNWAY TO TAKE OFF WHEN THEY GOT A L GEN FAIL CAS MESSAGE ALONG WITH A VIBRATION FROM THE LT ENGINE. BOMBARDIER SERVICE TEAM WAS DISPATCHED AND THEY FOUND THAT THE LT GENERATOR HAD FAILED INTERNALLY. THE GENERATOR WAS REPLACED WITH A NEW UNIT AND THE SYSTEM CHECKED OUT SERVICEABLE. (TC NR 20180207028).