As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH FOR LANDING, DURING FLIGHT RECEIVED A MOMENTARY, FUEL FILTER BYPASS, WARNING LIGHT ILLUMINATION. REDUCED POWER & THE LIGHT EXTINGUISHED. AS POWER WAS INTRODUCED AGAIN DURING LANDING THE WARNING LIGHT MOMENTARILY ILLUMINATED AGAIN. LANDED & SHUTDOWN ENG. THE MECHANIC ON DUTY ARRIVED TO INVESTIGATE THE AIRFRAME FUEL FILTER FOR A BYPASS INDICATION & DETERMINED THAT THE FUEL FILTER BYPASS BUTTON HAD INDICATED A BYPASS. PERFORMED CORRECTIVE ACTIONS AS REQUIRED IAW AMM, MX, TROUBLESHOOTING MANUALS & VEMD FLM. THIS ACFT HAS BEEN RETURNED TO SERVICE.