Incident Overview

Date: Thursday 30 January 1975
Aircraft Type: Fokker F-28 Fellowship 1000
Owner/operator: Trk Hava Yollari – THY
Registration Number: TC-JAP
Location: 30 km W off Istanbul-Yesilk”y Airport (IST) – ÿ Trkiye
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 42 / Occupants: 42
Component Affected: Aircraft electrical system (specifically the emergency generator).Aircraft electrical system (specifically the emergency generator).
Category: Accident
A Fokker F-28 Fellowship, TK345, crashed into the sea during an approach to Istanbul-Yesilk”y Airport, Trkiye, resulting in the loss of all 42 occupants. The aircraft, operating from Izmir, executed a night instrument approach to the runway. An electrical power failure triggered an emergency generator, restoring the runway lights, and the pilot elected VFR flight. Air traffic control ordered a downwind leg, but failed to establish contact with the aircraft, leading to a missed approach and subsequent crash.A Fokker F-28 Fellowship, TK345, crashed into the sea during an approach to Istanbul-Yesilk”y Airport, Trkiye, resulting in the loss of all 42 occupants. The aircraft, operating from Izmir, executed a night instrument approach to the runway. An electrical power failure triggered an emergency generator, restoring the runway lights, and the pilot elected VFR flight. Air traffic control ordered a downwind leg, but failed to establish contact with the aircraft, leading to a missed approach and subsequent crash.

Description

THY flight 345, a Fokker F-28 Fellowship, crashed into the sea while on approach to Istanbul-Yesilk”y Airport, Trkiye, killing all 42 occupants. The airrcaft, operating flight TK345 from Izmir, conducted a night instrument approach to Istanbul-Yesilk”y Airport’s runway 06. At 18:39, the aircraft touched down on the runway but an electrical power failure at the airport at that very moment forced the crew to initiate a missed approach. Twenty-two seconds after the lights went off, the emergency generator kicked in and restored the runway lights. The pilot elected to remain VFR under an altitude of 240 metres (790 ft). At 18:43, the crew asked for permission to land while positioning for another approach. However, because another aircraft, a Pan American World Airways Boeing 707, was about to take off, air traffic control ordered the crew of flight 345 to fly an extended downwind leg. When, at 18:53, air traffic control attempted to establish contact with flight 345, it received no answer.

Source of Information

https://www.airlinehaber.com/bilinmeyenleri-ile-thy-f-28-tc-jap-kazasi/https://www.airlinehaber.com/bilinmeyenleri-ile-thy-f-28-tc-jap-kazasi/

Primary Cause

Electrical power failure during an aircraft approach.Electrical power failure during an aircraft approach.

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