Incident Overview
Date: Wednesday 2 September 1964
Aircraft Type: Ilyushin Il-18V
Owner/operator: Aeroflot, Krasnoyarsk Civil Aviation Directorate
Registration Number: CCCP-75531
Location: 26 km NW of Yuzhno-Sakhalinsk Airport (UUS) –
ÿ Russia
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 87 / Occupants: 93
Component Affected: Ilyushin aircraftIlyushin aircraft
Category: Accident
A scheduled flight SU721, operating from Moscow-Sheremetyevo to Yuzhno-Sakhalinsk via Krasnoyarsk and Khabarovsk, experienced a near-miss incident when approaching Yuzhno Sakhalinsk in instrument weather conditions. The crew initiated a premature descent, resulting in the Ilyushin impacting the wooded side of Mount Ufa at an elevation of 550 metres. The impact caused significant damage to the aircraft.A scheduled flight SU721, operating from Moscow-Sheremetyevo to Yuzhno-Sakhalinsk via Krasnoyarsk and Khabarovsk, experienced a near-miss incident when approaching Yuzhno Sakhalinsk in instrument weather conditions. The crew initiated a premature descent, resulting in the Ilyushin impacting the wooded side of Mount Ufa at an elevation of 550 metres. The impact caused significant damage to the aircraft.
Description
Approaching Yuzhno Sakhalinsk in instrument weather conditions, the crew requested a direct approach without completing the standard approach pattern. A premature descent was initiated and the Ilyushin impacted the wooded side of Mount Ufa (793 metres) at an elevation of 550 metres. Flight SU721 was a scheduled service from Moscow-Sheremetyevo to Yuzhno-Sakhalinsk via Krasnoyarsk and Khabarovsk. PROBABLE CAUSE: 1) Lack of radar availability at Yuzhno-Sakhalinsk; 2) premature descent; 3) insufficient knowledge of the approach conditions; and 4) poor in-flight planning.
Source of Information
https://www.airhistory.net/info/soviet.php, http://airdisaster.ru/database.php?id=30https://www.airhistory.net/info/soviet.php, http://airdisaster.ru/database.php?id=30Primary Cause
Lack of radar availability at Yuzhno-Sakhalinsk; premature descent; insufficient knowledge of the approach conditions; and poor in-flight planning.Lack of radar availability at Yuzhno-Sakhalinsk; premature descent; insufficient knowledge of the approach conditions; and poor in-flight planning.Share on:
