As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS FLIGHT DIRECTOR WARNING FLAG (FD) ON. GROUNDED - YES. PERFORMED B737-900 FIM 22-11 TASK 801 DFCS BITE PROCEDURE, NO FAULTS SHUT DOWN POWER TO AIRCRAFT AND RESTARTED POWER UP WITH FD WORKING PROPERLY AND WARNING FLAG IS NO LONGER SHOWING.