As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOL - FL 129 - THE OIL FILTER BYPASS LIGHT ILLUMINATED ON THE NR 1 ENGINE DURING FLIGHT. CREW SHUT DOWN THE NR 1 ENGINE AND DIVERTED TO TOL. AN EMERGENCY WAS DECLARED AND THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE ASSEMBLY PER JOB CARD. OPERATIONAL CEHCK AND LEAK CHECK GOOD. (M)