Incident Overview
Date: Wednesday 10 November 1965
Aircraft Type: Tupolev Tu-124V
Owner/operator: Aeroflot, Northern Civil Aviation Directorate
Registration Number: CCCP-45086
Location: 1,5 km from Murmansk Airport (MMK) –
ÿ Russia
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 32 / Occupants: 64
Component Affected: Aircraft Control System (specifically descent control and guidance systems)Aircraft Control System (specifically descent control and guidance systems)
Category: Accident
A Aeroflot SU99 aircraft experienced a severe descent and subsequent crash due to deteriorating weather conditions near Murmansk. The aircraft encountered severe snow and visibility issues, leading to a misidentification of runway lights as threshold lights, resulting in a rapid descent and crash on the ice-covered Lake Kilp-Yavr.A Aeroflot SU99 aircraft experienced a severe descent and subsequent crash due to deteriorating weather conditions near Murmansk. The aircraft encountered severe snow and visibility issues, leading to a misidentification of runway lights as threshold lights, resulting in a rapid descent and crash on the ice-covered Lake Kilp-Yavr.
Description
Aeroflot flight SU99 took off from Leningrad-Pulkovo Airport at 14:21. Destination was Murmansk. During the descent towards Murmansk weather had deteriorated with Cumulonimbus clouds at 260 meters, snow and a visibility of 1500 m. During the approach, 7100 m from the runway, the Tu-124 was flying 400 m to the left of the extended centreline. Some 2400 m from the runway, the airplane went into a strong snow squall. The pilot descended below the glide path and noticed some light on the ground near the Middle Marker Beacon. He mistook the lights for the runway threshold lights and increased the rate of descent. The airplane then crashed on the ice-covered Lake Kilp-Yavr.
Source of Information
https://www.airhistory.net/info/soviet.php, http://www.airdisaster.ru/database.php?id=350https://www.airhistory.net/info/soviet.php, http://www.airdisaster.ru/database.php?id=350Primary Cause
Severe weather conditions, specifically deteriorating weather and a strong snow squall, caused the aircraft to lose control and crash.Severe weather conditions, specifically deteriorating weather and a strong snow squall, caused the aircraft to lose control and crash.Share on:
