Incident Overview
Date: Tuesday 30 August 1983
Aircraft Type: Tupolev Tu-134A
Owner/operator: Aeroflot, Privolzhsk Civil Aviation Directorate
Registration Number: CCCP-65129
Location: 36 km SW of Alma-Ata Airport (ALA) –
ÿ Kazakhstan
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 90 / Occupants: 90
Component Affected: Tu-134 aircraft’s flight control system, GPWS system, and potentially the aircraft’s navigation system.Tu-134 aircraft’s flight control system, GPWS system, and potentially the aircraft’s navigation system.
Category: Accident
A Tu-134 aircraft, operating from Kazan to Alma-Ata, descended prematurely over mountainous terrain approaching the destination. Upon collision with Dolan Mountain, the aircraft experienced a significant altitude loss, resulting in damage and a crash.A Tu-134 aircraft, operating from Kazan to Alma-Ata, descended prematurely over mountainous terrain approaching the destination. Upon collision with Dolan Mountain, the aircraft experienced a significant altitude loss, resulting in damage and a crash.
Description
Tupolev Tu-134 CCCP-65129 operated on a flight from Kazan to Alma-Ata via Chelyabinsk. Approaching Alma-Ata, the Tu-134 descended prematurely over mountainous terrain. The GPWS alarm sounded for 23 seconds before the crew took action by initiating a climbing left turn. Two seconds later the airplane collided with the slope of Dolan Mountain at an altitude of 690 m above airfield elevation, which is 1365 m above sea level.
Source of Information
https://www.airhistory.net/info/soviet.php, http://airdisaster.ru/database.php?id=66https://www.airhistory.net/info/soviet.php, http://airdisaster.ru/database.php?id=66Primary Cause
Premature descent due to Ground Proximity Warning System (GPWS) alarm and subsequent climbing left turn.Premature descent due to Ground Proximity Warning System (GPWS) alarm and subsequent climbing left turn.Share on:
