What was found
LANDING DUE TO ENG OIL CHIP LIGHT IN FLIGHT. UNEVENTFUL LANDING NO DAMAGE TO AC OR PROPERTY. MAINT FOUND 1 SMALL HAIR LIKE DARK CHIP. PLUG WAS CLEANED, AND ENG WAS TEST RUN FOR 10 MIN. ENG RUN DOWN TIME WAS CHECKED, CKD NORMAL. NO ADDITIONAL CHIPS FOUND. AC WAS FLOWN BACK TO MAINT EMPTY. CHIP PLUG WAS REINSPECTED, ONE VERY SMALL CHIP WAS NOTED THERE AS WELL. ENG OIL WAS DRAINED, STRAINED AND OIL FILTER WAS INSPECTED FOR CHIPS. REPLACED OIL AND FILTER, GROUND RUN FOR 10 MINUTES, CKD CHIP PLUGS, NO CHIPS NOTED. AC OPS FLT PERFORMED AFTER FILTER CHANGE, AC TEST FLOWN. PLUGS WERE PULLED, INSPECTED, NO CHIPS NOTED. FALSE INDICATION BECAUSE CHIP DETECTORS INABILITY TO DIFFERENTIATE 1 VS MANY CHIPS. (K)