What was found
DURING DESCENT SHUT DOWN NR 2 ENGINE, S/N 4806, DUE TO OIL FILTER DIFFERENTIAL PRESSURE LIGHT ILLUMINATION. FOUND CARBON IN OIL FILTER. REPLACED OIL FILTER, DRAINED AND REPLENISHED ENGINE OIL. ENGINE OIL FILTER DIFFERENTIAL PRESSURE SYSTEM CHECKED NORMAL. ENGINE TOTAL TIME 49,276, TOTAL CYCLES 16,099.