Incident Overview

Date: Friday 19 May 1978
Aircraft Type: Tupolev Tu-154B
Owner/operator: Aeroflot / Azerbaijan
Registration Number: CCCP-85169
Location: 5 km SE of Maksatiha, Tver region – ÿ Russia
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 4 / Occupants: 134
Component Affected: Sump tankSump tank
Category: Accident
A flight engineer inadvertently disconnected the automatic fuel transfer system for the sump tank during an en route flight from Baku to Leningrad. This resulted in the sump tank emptying, causing all three engines to stop and leading to a crash-landing near Maksatiha, Tver region.A flight engineer inadvertently disconnected the automatic fuel transfer system for the sump tank during an en route flight from Baku to Leningrad. This resulted in the sump tank emptying, causing all three engines to stop and leading to a crash-landing near Maksatiha, Tver region.

Description

En route from Baku to Leningrad, the flight engineer accidentally disconnected the automatic transferring of fuel of the sump tank. When the sump tank became empty, all three engines stopped. The plane crash-landed near Maksatiha, Tver region.

Source of Information

http://airdisaster.ru/database.php?id=84, https://www.airhistory.net/info/soviet.phphttp://airdisaster.ru/database.php?id=84, https://www.airhistory.net/info/soviet.php

Primary Cause

Automatic fuel transfer system malfunction leading to fuel depletion.Automatic fuel transfer system malfunction leading to fuel depletion.

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