Accident Cessna 550 Citation II N6887Y, Friday 18 December 1992
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Date:Friday 18 December 1992
Time:16:45
Type:Silhouette image of generic C550 model; specific model in this crash may look slightly different    
Cessna 550 Citation II
Owner/operator:United States Department of Energy
Registration: N6887Y
MSN: 550-0293
Year of manufacture:1981
Total airframe hrs:5275 hours
Engine model:Pratt & Whitney Canada JT15D-4
Fatalities:Fatalities: 8 / Occupants: 8
Other fatalities:0
Aircraft damage: Destroyed, written off
Category:Accident
Location:1,6 km E of Billings-Logan International Airport, MT (BIL) -   United States of America
Phase: Approach
Nature:Executive
Departure airport:Watertown Airport, SD (ATY/KATY)
Destination airport:Billings-Logan International Airport, MT (BIL/KBIL)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Rolled rapidly to the inverted position and descend almost vertically into the ground while on approach to Billings' runway 27R. Upset caused by wake turbulence from a preceding Boeing 757. Horizontal separation was decreasing below 2.6 miles.

PROBABLE CAUSE: "The pilot-in-command's failure to follow established vortex avoidance procedures, as published in the airman's information manual, to provide his own wake turbulence separation."

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: SEA93GA041
Status: Investigation completed
Duration: 11 months
Download report: Final report

Sources:

NTSB

Statistics

  • 59th worst accident in 1992
  • 2nd worst accident of this aircraft type
  • worst accident of this aircraft type at the time

Location

Revision history:

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