As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPLOYMENT OF THE PASSENGER OXYGEN MASKS DURING FUNCTIONAL CHECK THE EICAS CATION MESSAGE "PASS OXY ON" WAS NOT DISPLAYED. REPLACED RELAY K129 IAW BOMBARDIER AMM 20-42-00-960-801-A02, 24-05-09-000-801-A01 AND 24-05-09-400-801-A01. FUNCTIONAL CHECK GOOD.