What was found
WHILE TROUBLESHOOTING INOPERATIVE RT LANDING LIGHT, FOUND WIRE BURNED WHERE HAD SHORTED TO LANDING LIGHT ASSY. SHELL APPROX. 2 INCHES FROM TERMINAL END. CRIMPED ON TYPE TERMINAL INSULATION MELTED, ADJACENT WIRE INSULATION PARTIALLY MELTED AND SPLIT, EXPOSING CORE WIRING. COMMONLY FOUND DEFECT ON AIRCRAFT WHEN REPLACING LANDING LIGHT LAMPS. SUGGEST A BETTER INSTALLATION DESIGN THAT REDUCES HEAT EXPOSURE AND CHAFING DAMAGE BE INVESTIGATED. WIRING APPEARS ORIGINAL.