As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: BOTH FLIGHT DIRECTORS, DISAPPEARED AT GLIDESLOPE INTERCEPT , ABLE TO RECOVER CAPTAINS FLIGHT DIRECTOR BUT FIRST OFFICERS NEVER RETURNED. MAINTENANCE RESET MMR CIRCUIT BREAKERS, ACCOMPLISHED DFGC BITE CHECK WITH NO FAULTS . ALL GROUND OPERATIONAL CHECKED NORMAL. PER AMM 22-11-00 AND AMM 22-11-00.