Incident Overview
Date: Sunday 11 December 1988
Aircraft Type: Ilyushin Il-76M
Owner/operator: Soviet Air Force
Registration Number: CCCP-86732
Location: 15 km from Leninakan Airport (LWN) –
ÿ Armenia
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 77 / Occupants: 78
Component Affected: Altimeter settingAltimeter setting
Category: Accident
An Ilyushin Il-76 aircraft was involved in an air relief operation following an earthquake in Armenia on December 7, 1988. The aircraft entered a mountain side while approaching Leninakan. An incorrect altimeter setting of 734 mm Hg was used instead of 634 mm Hg, leading to an altitude indication of 1100 meters above the actual altitude. The crew, fatigued due to insufficient rest, initiated multiple relief flights the day before.An Ilyushin Il-76 aircraft was involved in an air relief operation following an earthquake in Armenia on December 7, 1988. The aircraft entered a mountain side while approaching Leninakan. An incorrect altimeter setting of 734 mm Hg was used instead of 634 mm Hg, leading to an altitude indication of 1100 meters above the actual altitude. The crew, fatigued due to insufficient rest, initiated multiple relief flights the day before.
Description
The Ilyushin Il-76 was part of an air relief operation following an earthquake in Armenia on Dec. 7, 1988. The aircraft flew into the side of a mountain while on approach to Leninakan. The crew had used an incorrect altimeter setting (734 mm Hg instead of 634 mm Hg). This resulted in an erroneous altitude indication that was 1100 metres above the actual altitude. The crew were tired, since they did not have sufficient rest. They made several relief flights the day before.
Source of Information
https://www.airhistory.net/info/soviet.phphttps://www.airhistory.net/info/soviet.phpPrimary Cause
Incorrect altimeter setting during approach.Incorrect altimeter setting during approach.Share on:
