1952 BANGKOK. On March 23 1952 the KLM Lockheed Constellation ‘Venlo’, was on a flight from Amsterdam to Sydney. When approaching Bangkok a vibration of the control wheel and dashboard was noticed. The vibrations nearly ceased when engine power was applied. During a left turn to base leg, a loud noise was heard and the aircraft vibrated heavily. One of the no.3 engine propeller blades had separated and a fire broke out in the engine nacelle. The aircraft landed safely on runway 21. Before coming to rest however, the right main gear collapsed and a major fire erupted. The ten crew members and thirty-four passengers escaped. Part of the mail was destroyed. This cover from Den Haag to Auckland has the straight-line label affixed to the back. A scarce cover from this incident. (Sanford 520323)