What was found
FLIGHT CREW REPORTED, THE OIL FILTER BYPASS LIGHT ILLUMINATED ON THE NUMBER ONE ENGINE WHEN OIL PRESSURE AND TEMPERATURE ARE INDICATING NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT CREW REPORTED, THE OIL FILTER BYPASS LIGHT ILLUMINATED ON THE NUMBER ONE ENGINE WHEN OIL PRESSURE AND TEMPERATURE ARE INDICATING NORMAL.