Fell Asleep on Duty, Omsk accident, October 11, 1984

When an airliner touches down only to plow into a truck because the controller literally fell asleep, the chain of events reads like a tragic thriller. Here’s the story of a lethal combination of negligence at Omsk Airport in 1984.

Aviation accidents are often the result of an unfortunate chain of events — remove just one link and disaster might be averted, just like a puzzle can’t be completed without a piece. Unfortunately, on October 11, 1984, all the pieces tragically fell into place at Omsk Airport.

That day, the airport’s chief of flight operations, Boris Ishalov, was late to the briefing, while Ivan Prokhorov, the airfield services supervisor, skipped it altogether. The auxiliary tower controller had taken the day off. The landing controller on duty was experienced Vasily Ogorodnikov, while the takeoff controller — who also monitored the runway — was 23-year-old Andrey Borodayenko.

The weather that night was poor: low overcast, steady rain, and limited visibility. Prokhorov was concerned about the wet runway, which could reduce tire grip and braking effectiveness. Since traffic was light that night, he decided to dry the runway. He waited for what he believed was a suitable window and requested permission from the takeoff controller to enter the active runway. Borodayenko gave the go-ahead.

What Prokhorov didn’t realize was that Borodayenko was dozing off at his station and gave the permission automatically. Worse still, the controller failed to activate the “Runway Occupied” indicator on the landing controller’s panel and didn’t notify the chief of flight operations. Prokhorov also failed to inform him. He entered the runway with a UAZ-469 and trailer (in which he rode), a KrAZ-258, and a Ural-375. The latter two vehicles began blowing hot air across the runway surface. None of them had flashing beacons switched on, nor were they equipped with radios to monitor air-ground communications.

Vihicle with engine to dry runway

Meanwhile, a Tu-154 from Krasnodar was on final approach with 179 people on board. The crew contacted the landing controller for landing clearance. The controller tried to check runway status with the drowsy takeoff controller but got no response. After several queries, he finally received a vague “…clear.” He assumed the reply meant “runway clear” and gave the landing clearance.

Due to heavy rain, the aircraft’s landing lights were switched on only at low altitude. Just before touchdown, the captain spotted shapes on the runway and asked, “What’s that on the runway?” The navigator replied, “Yeah, something’s reflecting.” A second after touchdown, the crew saw a vehicle directly ahead. They tried to veer right, but it was too late.

The aircraft first struck the UAZ, throwing it aside. Then it collided with the Ural and KrAZ, dragging them along. Both trucks were carrying 7.5 tons of kerosene each. The impact triggered explosions. The aircraft veered left, its fuselage broke apart, and the front section overturned and caught fire. The burning Tu-154 came to rest just 95 meters from the terminal. The crash claimed 178 lives — 174 on the plane and four ground personnel. Only five people survived: the captain, first officer, navigator, flight engineer, and one passenger.

Crash site

The investigation concluded that the disaster was caused by systemic negligence, poor discipline, and gross violations of operational procedures by Omsk airport personnel. Specific blame was placed on the reckless conduct of the chief of flight operations, the takeoff controller, and the airfield services supervisor, as well as the unauthorized presence of unequipped ground vehicles on the active runway.

Crash site

Boris Ishalov, the chief of flight operations, and Andrey Borodayenko, the takeoff controller, were each sentenced to 15 years in prison. Landing controller Vasily Ogorodnikov received 13 years, and Mikhail Tokarev, the supervisor of the deceased airfield services supervisor Ivan Prokhorov, was sentenced to 12 years.a

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