As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAXI, WE HAD A STARTER GENERATOR WARNING LIGHT ILLUMINATE ON THE NR 1 ENGINE. THE PILOTS SHUTDOWN THE ENGINE AT THE APRON AND CALLED MAINTENANCE. MAINTENANCE DISCOVERED THE STARTER/GEN FAN SHROUD HAD COME LOOSE DUE TO, 2 OUT OF THE 4 SCREWS FALLING OUT AND ENDING UP INSIDE THE STARTER/GEN. THE END RESULT WAS A SHORTED OUT/SEIZED STARTER/GENERATOR. O/H FACILITY WAS CONTACTED AND AWAITING FEEDBACK.