LONDON, March 11 (Reuters) - Insurance brokers called on Monday for insurers to suspend a $1.25 per passenger terror surcharge currently imposed on aviation policies at a meeting of the International Air Transport Association here. In a letter sent on behalf of the London Market Brokers Committee to insurance organisations, Jonathan Palmer Brown, chairman of the aviation group at Aon (AOC), called the surcharge "a simple blunt instrument approach." He said there should be talks on reducing the charge to 50 cents or even 25 cents per passenger and that the amount should take into account risk profiles of the insured airlines. Low-risk carriers such as package holiday flight operators pay the same level of surcharge as flag carriers of high-risk countries. Palmer Brown said the surcharge would amass $2 billion for insurers annually. The $1.25 premium was introduced by insurers following the September 11 attacks. ©2002 Reuters Limited.