As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURN TO PLATFORM DUE TO LOSS OF FLIGHT DIRECTOR BUS. THE DFGC BRAKERS WERE RESET AND THE CODE FAIL INDICATES CADC NR 1 AND LEADING ANGLE TRANSMITTOR NR 1 DAMAGED. THE DFGC NR 1 WAS REPLACED IAW MM 22-01-01. DURING OVERNIGHT SERVICE BOTH DFGC WERE TESTED IAW MM 22-01-03, ALL CORRECT.