 The missing wing pieces that did not strike the tanker were never found, and appeared to cause no damage on the ground.The investigating board recommended that both Rated E-3 pilots and the enlisted flight engineer be permanently assigned duties other than flying, and that cameras not be allowed on the flight-deck without Wing approval.On 14 April 1994, two USAF McDonnell Douglas F-15 Eagles controlled by a 552d E-3 aircraft and aircrew accidentally shot down two US Army Sikorsky UH-60 Black Hawk helicopters while they passed through the northern Iraq no-fly zone.