Fulgte ikke klarering som ble lest tilbake korrekt - Curt Lewis

Incident: Envoy E145 at Chicago on Mar 1st 2019, unexpected turn on departure causes loss of separation

An Envoy Embraer ERJ-145, registration N662EH performing flight MQ-3603 from Chicago O'Hare,IL to Birmingham,AL (USA), received clearance "fly heading 100, runway 10L at DD, cleared for takeoff", the crew acknowledged "100, 10L cleared for takeoff". Shortly after becoming airborne the aircraft turned left however into the departure path out of runway 09R. An American Airlines Boeing 737-800, registration N959AN performing flgiht AA-272 from Chicago O'Hare,IL to New York JFK,NY (USA), was climbing out of runway 09R on a different tower frequency having become airborne almost the same time as MQ-3603, a loss of separation occurred with MQ-3603. Tower 10L recognized the conflict, MQ-3603 had already turned onto a heading of about 045 degrees, and instructed MQ-3603 to stop the climb followed by an instruction "turn right heading 140 immediately". The crew stopped the climb at about 1800 feet MSL and turned right, the aircraft became clear of conflict. Both aircraft continued to their destinations without further incident. The FAA opened an investigation into the occurrence. American Airlines reported both American Airlines and Envoy are aware of the issue and are cooperating with the investigation. https://flightaware.com/live/flight/ENY3603/history/20190301/1805Z/KORD/KBHM https://flightaware.com/live/flight/AAL272/history/20190301/1801Z/KORD/KJFK