What was found
ENGINE CHIP LIGHT CAUTION LIGHT ILLUMINATED. PILOT MADE PRECAUTIONARY LANDING AT A FIELD SITE 3 MILES SOUTH OF AIRPORT. CHIP DETECTORS REMOVED AND INSPECTED IAW ALLISON OPERATION AND OVERHAUL MANUAL 10WZ PAG G-1. SMALL CHIPS AND FLAKES WERE NOTED (3), PLUGS, CLEANED AND REINSTALLED. AIRCRAFT WAS RUN 30 MINUTES ON GROUND. PLUGS RE-INSPECTED AND NO ACCUMULATION NOTED. PLUGS RE-INSTALLED AND ENGINE RETURNED TO SERVICE IAW PAR G-3 (A) OF ALLISON 10WZ. AIRCRAFT RETURNED. ENGINE MODULES TO BE REMOVED FOR INSPECTION.