As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MDIS 789 33-50 3480 01MAY20 RST OPEN U THE THREE MAIN DECK EMERGENCEY LIGHTS CONTROLLED BY M731 REMAIN ILLUMINATED WITH AIRCRAFT DOWN POWERED. REMOVED AND REPLACED CHARGER / POWER SUPPLY M731 REF MM 33-51-07-2. OPS CHECK NORMAL. OK FOR SERVICE.