Narrative:A Delta Air Lines Boeing 767-300ER, N185DN, operating as Delta flight 266, was taxiing on taxiway B for departure on runway 04 at Boston Logan International Airport (BOS), when its left winglet struck the horizontal stabilizer of an Atlantic Southeast Airlines CRJ900, N132EV, operating as ASA flight 4904, which was number three in line on taxiway M waiting for departure on runway 09.
As the B767 approached and passed the intersection with taxiway M, the left winglet of the B767 struck the horizontal tail of the CRJ900. The CRJ900 sustained substantial damage, which included damage to the horizontal tail and vertical tail; the airplane lost fluid in all three hydraulic systems. Parts of the B767 winglet were sheared off and embedded in the tail of the CRJ900. The passengers on the CRJ900 were deplaned on the taxiway, and the B767 taxied back to the terminal.
Probable Cause:
PROBABLE CAUSE: "The B767 Captain's failure to maintain a safe clearance between his wing and the tail of the CRJ900 that was stopped on a taxiway."
Accident investigation:
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Investigating agency: | NTSB  |
Status: | Investigation completed |
Duration: | 4 years and 9 months | Accident number: | DCA11CA084B | Download report: | Summary report
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Classification:
Ground collision
Damaged on the ground
Sources:
» NTSB
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does
not display the exact flight path.
Distance from Boston-Logan International Airport, MA to Amsterdam-Schiphol International Airport as the crow flies is 5509 km (3443 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.