What was found
EN ROUTE, PART 91 FLIGHT. LT ENGINE FIRE INDICATION, LIGHTS AND WARNINGS. NO REAL SMOKE OR FLAMES NOTED, BUT SOME SMALL AMOUNT OF WHITE SMOKE OBSERVED FROM LT NACELLE. FLIGHT CREW SHUTDOWN LT ENGINE AND PERFORMED CHECK LIST, REQUIRING FIRE BOTTLE ACTIVATION. WITH ENGINE SECURED (NO FUEL TO ENGINE AND PROP FEATHERED) AND FIRE BOTTLE ACTIVATION, FIRE WARNING EXTINGUISHED. AIRCRAFT WAS FLOW TO BASE AND LANDED SAFELY. POST LANDING INSPECTION YIELDED NO OBSERVED OVER TEMP, OR FIRE EVIDENCE. SUSPECT FALSE INDICATION, BUT INVESTIGATION IS ON-GOING.