What was found
AT CRUISE A LOUD NOISE CAME FROM RT ENGINE. EPR AND N1 DROPPED, ENG OIL STRAINER CLOGGING LIGHT ILLUMINATED AND OIL TEMP WENT TO 115. MADE UNSCHEDULED LANDING, FORT SMITH AR. FOUND BRASS LIKE METAL IN OIL FILTER AND REPLACED ENGINE. SUSPECT GEARBOX PROBLEM, WILL BE ANALYZED FURTHER.