1973
Dyatlov Naval Reactor Career Completion
Anatoly Dyatlov
Completes fourteen years of work connected with naval nuclear reactors before transferring from the Soviet Far East to Chernobyl.
Unit 4 · 25–26 April 1986
Chernobyl Operators and Plant Staff
The Unit 4 accident involved shift supervisors, reactor-control engineers, turbine and electrical staff, trainees, foremen and senior engineers. This page presents selected records directly from the replacement World History Database file.
Selected database records
Control room, reactor and plant personnel
These entries are ordinary crawlable HTML generated directly from the replacement record set.
1973
Dyatlov Transfer to Chernobyl Plant
Anatoly Dyatlov
Transfers to the still-developing Chernobyl Nuclear Power Plant and begins work in the station's reactor-management organization.
1979
Employment at Chernobyl Nuclear Power Plant
Alexander Akimov
Joins the Chernobyl Nuclear Power Plant and begins work in the operating organization several years before the Unit 4 accident.
10 July 1984
Appointment as Unit 4 Shift Supervisor
Alexander Akimov
Is appointed a Unit 4 shift supervisor, placing him in charge of operating crews during assigned reactor shifts.
26 April 1986
Toptunov Control Rod Withdrawal
Leonid Toptunov
Withdraws control rods as operators attempt to maintain reactor power against xenon poisoning and changing coolant conditions.
26 April 1986
Toptunov Emergency Feedwater Work
Leonid Toptunov
Operates feedwater valves with Alexander Akimov after the explosion, remaining in contaminated areas while attempting to restore cooling flow.
26 April 1986
Tregub Control Room Damage Report
Yuri Tregub
Returns toward the control room to report the severe destruction observed around the reactor building.
26 April 1986
Tregub Emergency Response Survival
Yuri Tregub
Survives his involvement in the immediate Unit 4 emergency response after receiving radiation exposure at the site.
26 April 1986
Stolyarchuk Accident Survival
Boris Stolyarchuk
Survives the Unit 4 accident and becomes one of the control-room personnel able to describe the night's events.
26 April 1986
Stolyarchuk Coolant System Monitoring
Boris Stolyarchuk
Monitors coolant and feedwater conditions as reactor parameters change during the low-power test preparations.
26 April 1986
Kudryavtsev Control Room Observation
Aleksandr Kudryavtsev
Observes Unit 4 operations as a reactor-control trainee during the night of the accident.
26 April 1986
Kudryavtsev Manual Rod Mission
Aleksandr Kudryavtsev
Is sent with Viktor Proskuryakov toward the reactor hall to investigate and attempt manual control-rod action.
26 April 1986
Proskuryakov Control Room Observation
Viktor Proskuryakov
Observes Unit 4 operations as a reactor-control trainee during the turbine rundown test.
26 April 1986
Proskuryakov Damage Report
Viktor Proskuryakov
Returns from the reactor area and reports catastrophic damage to personnel in the Unit 4 control room.
26 April 1986
Perevozchenko Control Room Arrival
Valery Perevozchenko
Reaches the Unit 4 control room after the explosions and reports extensive damage in the reactor section.
26 April 1986
Perevozchenko Control Room Damage Warning
Valery Perevozchenko
Reports back that the reactor area is destroyed after entering zones with extremely high radiation levels.
26 April 1986
Yuvchenko Explosion Shock Wave
Alexander Yuvchenko
Experiences the blast wave between Units 3 and 4 as doors and walls are damaged by the explosion.
26 April 1986
Yuvchenko Exterior Reactor Inspection
Alexander Yuvchenko
Goes outside with Yuri Tregub and sees that a large part of the Unit 4 building has been destroyed.
26 April 1986
Khodemchuk Body Unrecovered
Valery Khodemchuk
Remains missing beneath the destroyed Unit 4 structure because rescuers cannot safely recover his body.
26 April 1986
Khodemchuk Killed in Reactor Explosion
Valery Khodemchuk
Is killed when the Unit 4 explosion destroys part of the main circulation pump building.
26 April 1986
Shashenok Explosion Injuries
Vladimir Shashenok
Suffers severe traumatic, thermal and radiation injuries when the explosion destroys his work area.
26 April 1986
Shashenok Instrument Room Duty
Vladimir Shashenok
Works in an instrument room monitoring turbine and reactor-related systems when Unit 4 explodes.
26 April 1986
Sitnikov Cooling Assistance
Anatoly Sitnikov
Assists continuing efforts to establish cooling water flows after confirming the catastrophic reactor damage.
26 April 1986
Sitnikov Emergency Duty Call
Anatoly Sitnikov
Is called into the plant during the emergency as senior engineering staff gather to assess Unit 4.
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