As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE OIL STORAGE: ONE HOUR INTO THE FLIGHT AT FL400 A CYAN L ENGINE OIL BYPASS MESSAGE ILLUMINATED. NO FAULT CODES AIRBORN OR POSTFLIGHT WERE AVAILABLE. //SIGN OFF// REMOVED LH ENGINE WIRING HARNESS INSTALLED NEW LH ENGINE WIRE HARNESS IAW HONEYWELL AS907-Z-1A LMM OPS TEST REQUIRED PERFORMED ENGINE RUNS NO ADJUSTMENT OR RIGGING NEEDED ALL INDICATIONS NORMAL OPS CHECK GOOD AT MAX POWER IAW CL 350 AMM 71-00-00