Narrative:The Cessna departed Voronezh (VOZ) at 21:17 on a flight to Domodedovo Airport (DME), where it was supposed to land at 22:40. The airplane was in cruise flight at 3,000 meters (9,843 feet) about 22:06 when ATC advised the flight crew of a forecast for moderate icing conditions in the clouds. The crew said that the airplane was above the clouds and that they were not experiencing icing conditions. About five minutes later, the pilots discussed among themselves that they were experiencing severe icing´. About 22:14,ATC again asked the pilots about icing conditions, and they responded that they were experiencing light icing. As the airplane neared Domodedovo, ATC issued a descent clearance to 1,500 meters (4,922 feet). The airplane was in level flight at 118 knots when its pitch attitude began to increase and airspeed began to decrease. Pitch attitude was about nine degrees nose-up and airspeed was 102 knots at 22:26 when the airplane stalled. The stall-warning system did not activate before he stall occurred. Shortly thereafter, the autopilot disengaged, and the airplane descended toward the ground with bank angle excursions of 40 degrees and reached a maximum airspeed of about 226 knots just before ground impact. Weather at Domodedovo at the time of the accident (19:30 UTC) indicated: wind 030 varying between 010 and 070 degrees at 1 m/sec visibility 5000 m in mist, 5-7 oktas cloud at 700ft, 8 oktas overcast cloud at 10000ft no significant weather, temperature -2C, dewpoint -3C, QNH 1019hPa.
Classification:
Icing
Loss of control
Sources:
» Investigators urge restrictions on Cessna 208 icing operations In: Flight Safety Foundation Accident Prevention. - Vol. 63, no.2 (February 2006)
» MAK Interstate Aviation Committee (IAC)
Follow-up / safety actions
NTSB issued 3 Safety Recommendations
Issued: 17-JAN-2006 | To: FAA | A-06-1 |
Require all operators of Cessna 208 series airplanes to maintain a minimum operating airspeed of 120 knots during flight in icing conditions, even if a descent is required to do so. (Urgent) (Closed - Acceptable Action) |
Issued: 17-JAN-2006 | To: FAA | A-06-2 |
Prohibit all operators of Cessna 208 series airplanes from conducting flight into any icing conditions determined to be more than light icing. (Urgent) (Closed - Acceptable Action) |
Issued: 17-JAN-2006 | To: FAA | A-06-3 |
Require all operators of Cessna 208 series airplanes to disengage the autopilot and fly the airplane manually when operating in icing conditions. (Urgent) (Closed - Acceptable Action) |
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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 Voronezh Airport to Moskva-Domodedovo Airport as the crow flies is 406 km (254 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
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.