Islamabad: Chief of Air staff, Rao Qamar Suleman Sunday ordered to form an investigative committee to probe into radar system failure on 2nd May when US choppers penetrated deep inside Pakistan.According to sources, Air Chief would head the inquiry committee which would investigate how radar system was failed to detect the US chopper who infiltrate the country air space and conducted operation in Abbottabad just 60 miles away from Islamabad, the capital of the country.Sources told that the committee would try to find out the reasons of this failure, whether the radars had been jammed by US apparatus or they were not functional at that time. Air chief directed committee to complete its investigation and to report it as earlier as possible. – Onlinenews