SYDNEY, Safar 27, 1433, Jan 21, 2012, SPA - Australia's military has grounded its fleet of Black Hawk helicopters after fractured bolts were found during a routine inspection, the defence ministry said on Saturday. The 33-aircraft fleet was temporarily grounded on Thursday for further safety checks, although exceptions were made for three aircraft in East Timor required for medical evacuations, the ministry said in a statement quoted by Reuters. "The precautionary suspension will remain in place to allow an investigation into the cause of the fracture to be completed," Colonel Stephen Evans, acting director general, aviation, said in the statement. The defence ministry said Navy Seahawk operations had not been suspended as the Seahawk differed significantly in the affected area. --SPA 13:07 LOCAL TIME 10:07 GMT www.spa.gov.sa/963160