As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT THE LT ENGINE OIL STRAINER CLOGGED LIGHT ILLUMINATED. POWER REDUCED TO IDLE AND LIGHT REMAINED ILLUMINATED. ENGINE REMAINED AT IDLE THROUGH LANDING AND SHUT DOWN. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT GROUNDED. MAINTENANCE FOUND A LARGE AMOUNT OF METALIC DEBRIS IN LEFT ENGINE OIL FILTER. REMOVED AND REPLACED ENGINE IAW MCM CARD 71-91-99. OPERATIONAL AND LEAK CHECKS NORMAL. ENGINEERING REPORTED NR 5 BEARING WORN CAUSING METAL FRAGMENTS.