NTSB investigates Boston winglet prang

Washington DC
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The US National Transportation Safety Board (NTSB) has opened an investigation into a 14 July collision between a Delta Air Lines Boeing 767-300ER and an Atlantic Southeast Airlines (ASA) Bombardier CRJ900 at Boston's Logan International airport.

According to the NTSB's initial description of the events, the 767, operating as Flight 266, was taxiing on taxiway B for departure on Logan's Runway 4, when the aircraft's left winglet struck the horizontal stabiliser of the CRJ900, which was taxiing on taxiway M and third in line for departure on runway 9.

"As the 767 approached and passed the intersection with taxiway M, the left winglet of the 767 struck the horizontal tail of the CRJ900," said the NTSB.

The ASA CRJ900, operating as Flight 4904, sustained "substantial damage". including loss of all three hydraulic systems, as the 767's winglet was sheared off and embedded on the tail of the CRJ900.

As of 15 July, both the flight data and crew voice recorders were enroute to the NTSB's Washington, DC headquarters. In addition to the onboard data and interviews with pilots and ground traffic controllers, the NSTB said it will examine ASDE-X ground radar information and release a preliminary report within 10 days of the incident.