Flight Details
On 4 February 2010, the flight crew of An-24RV RA-47360 operated Yakutia Airlines' internal regular passenger flight YAK-425 from Yakutsk to Olekminsk. The scheduled departure time was 07:30. The aircraft was to continue from Olekminsk to Irkutsk on a subsequent passenger service.
Crew and Passengers
The crew consisted of a captain, second pilot, flight engineer, and flight attendant. On board were 34 passengers and 4 crew members belonging to Yakutia Airlines.
Pre-Flight Preparations
The crew's preliminary training was conducted for the autumn-winter period of 2009–2010. The captain and flight engineer completed their preliminary training on 25 September 2009 under the supervision of the deputy commander of the air squadron, with the participation of a navigator, flight engineer, and pilot-instructor. The second pilot's preliminary training took place on 29 September 2009 under the same deputy commander, with the airline's navigator and air squadron's flight engineer participating.
Pre-flight medical checks were performed at the Yakutia Airlines health station between 06:10 and 06:30. All crew members reported no health complaints and were cleared for the flight, with a corresponding note made in flight assignment No. 77.
Pre-flight preparation followed the Technological Schedule for Pre-Flight Preparation of Flight Crew at the Departure Airport. At 06:38, the duty synoptic at the Yakutsk Aviation Meteorological Center briefed the crew. Flight documentation was not issued in accordance with paragraph 8.2.5 of the Civil Aviation Meteorological Manual GA-95, as the flight duration was less than two hours. Actual weather and forecasts for the departure, destination, and alternate (Yakutsk) airports did not preclude the flight.
At 06:46, the captain decided to depart, recording the decision on the air traffic control tower's recorder. Per directive No. 568/u of the Ministry of Civil Aviation dated 28 December 1990, the pre-flight procedure at Yakutsk Airport included this decision recording.