As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A FILTER ASSEMBLY PN 222-366-621-101 WAS RECEIVED ON CHL PO NR 514815 AND INSTALLED. DURING TESTING IT WAS DISCOVERED THE BYPASS LIGHT WAS ON ALL THE TIME. TROUBLESHOOTING DETERMINED THE BYPASS SWITCH IS STUCK CLOSED. AS WELL THE DRAIN VALVE WAS LEAKING UNDER NORMAL BOOST PUMP PRESSURE.