As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON LANDING FILTER BYPASS ILLUMINATED (ENGINE 1). GROUNDED - YES. INITIAL FAULT CODE 73-31071 FOUND LOOSE CONNECTOR ENG 1 PRESSURE SWITCH. TIGHTENED CONNECTOR PER AMM 73-21-06-400-801-F00. PERFORMED ENGINE RUN PER AMM 73-11-02.000-801-F00.