Based on earliest available info- Had the helicopter not been flying at the reported altitude, this incident would, most probably, not have occurred https://www.independent.co.uk/news/world/americas/dc-plane-crash-update-helicopter-american-airlines-rebecca-lobach-b2690740.html Conflicting information from plane’s black boxes Investigators from the National Transportation Safety Board have determined the CRJ700 airplane was at 325 feet (91 meters), plus or minus 25 feet, at the … Continue reading Black Hawk Helicopter flying higher than max allowable- 3rd pilot named