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Last updated: 21 July 2019
Status:Final
Date:Monday 22 February 1999
Time:14:55
Type:Silhouette image of generic B752 model; specific model in this crash may look slightly different
Boeing 757-232
Operator:Delta Air Lines
Registration: N682DA
C/n / msn: 26958/518
First flight: 1993-01-12 (6 years 1 months)
Crew:Fatalities: 0 / Occupants: 7
Passengers:Fatalities: 0 / Occupants: 125
Total:Fatalities: 0 / Occupants: 132
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:Cincinnati/Northern Kentucky Airport, KY (CVG) (   United States of America)
Phase: Takeoff (TOF)
Nature:Domestic Scheduled Passenger
Departure airport:Cincinnati/Northern Kentucky Airport, KY (CVG/KCVG), United States of America
Destination airport:Washington-Ronald Reagan National Airport, DC (DCA/KDCA), United States of America
Flightnumber:DL338
Narrative:
On February 22, 1999, about 1455 eastern standard time, a Boeing 757, N682DA, operated by Delta Air Lines as flight 338, penetrated a flock of birds during takeoff from Cincinnati/Northern Kentucky International Airport, Kentucky. The airplane was substantially damaged. There were no injuries.
The airplane pushed back from the gate, and taxied to runway 18L. While taxing, the crew heard no mention of a bird hazard by another aircraft or air traffic control. The takeoff roll was normal until passing approximately 150 knots; at that point, a flock of starling birds traveling from left to right passed in front of the airplane. The captain advised the first officer of the hazard, and asked him to climb over the flock. The first officer increased pitch angle, but the airplane still penetrated the flock. At the time of penetration, the nose wheel was in the air, and the main landing gear was just becoming airborne. The airplane returned to the airport without further incident. At the time of impact, N1 on the left engine dropped from 81.88 percent to 56.00 percent, and on the right engine, it dropped from 81.25 to 71.63 percent. In both cases, throttle positions remained constant. The bird's roost was not identified, and no airport procedures contributing to the accident were observed.

Probable Cause:

A flock birds were ingested into both engines, resulting in substantial damage to the engines.

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 6 months
Accident number: NYC99LA064
Download report: Summary report

Sources:
» SKYbrary 


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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 Cincinnati/Northern Kentucky Airport, KY to Washington-Ronald Reagan National Airport, DC as the crow flies is 655 km (409 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.
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