As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: N/A EMERGENCY DOORS LIGHT ON OVERHEAD PANEL WAS FLASHING ON AND OFF CONTINUOUSLY. NO EICAS MESSAGE OR OTHER INDICATIONS. PERFORMED T/S OF PSEU CHANNEL 174 AND 188 IAW SSM 52-70-01. FAULT CODE 405 REMOVED AND REPLACED CARD #10 IN PSEU IAW MM 32-09-06-H01. TEST OK. P/N OFF 8-351-09 S/N OFF: 4533, P/N ON 8-351-09 S/N ON C7639.