What was found
ON DEPARTURE AND CLIMBING AT AROUND 7,000 FT IN THE CREW NOTICE A BURNING ODOR WITH NO VISUAL SIGN OF SMOKE. CREW DECLARED AN EMERGENCY AND ACFT RETURNED TO THE ORIGINATING AIRPORT. THE ACFT LANDED WITHOUT INCIDENT. THE TROUBLESHOOTING REVEALED INSULATION UNDER LT CABIN ARMREST BETWEEN WINDOWS 4 AND 5, FS 355, AMM 06-00-02, MELTING AGAINST BLEED AIR MANIFOLD FOR THE CABIN HEAT. THE INSULATION DID NOT REQUIRED REPLACEMENT, IT WAS REPAIRED, REPOSITION AND SECURED. THE ACFT HAS FLOWN NUMEROUS FLIGHTS WITHOUT ANY PROBLEMS.