As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT TAKE OFF, EMERGENCY DOOR LIGHT ON OVERHEAD PANEL FLICKERING ON AND OFF CONSTANTLY WITH NO ASSOCIATED EICAS MESSAGE. MEL RELIEF WITH REQUIRED MAINTENANCE ACTIONS. RETURN TO BLOCKS. SYSTEM DEFERRED-28598 MEL CAT C. SECURED AND VERIFIED THE INTEGRITY OF S9031. OPERATIONAL CHECK GOOD. FAULT NOT DUPLICATED. DEFERRAL MAINTENANCE ITEM 28598 CLEAR.