Incident Overview

Date: Thursday 8 March 1962
Aircraft Type: Fairchild F-27
Owner/operator: Trk Hava Yollari – THY
Registration Number: TC-KOP
Location: Taurus Mountains – ÿ Trkiye
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 11 / Occupants: 11
Component Affected: Flight control systems (altitude and position tracking)Flight control systems (altitude and position tracking)
Category: Accident
A THY F-27 aircraft took off from Ankara at 14:20 GMT for a flight to Adana. En route, the pilot reported passing Aksaray and estimated arrival at 15:40 GMT. At 15:28, the pilot requested clearance to approach and was cleared to 5000 feet. At 15:40, the flight was cleared to cross 8000 and 7000 feet. The aircraft subsequently crashed at 6800 feet AMSL, approximately 47 NM from the Adana radio range. The probable cause is that the pilot was not able to maintain precise altitude and position due to cumulus cloud and turbulent conditions.A THY F-27 aircraft took off from Ankara at 14:20 GMT for a flight to Adana. En route, the pilot reported passing Aksaray and estimated arrival at 15:40 GMT. At 15:28, the pilot requested clearance to approach and was cleared to 5000 feet. At 15:40, the flight was cleared to cross 8000 and 7000 feet. The aircraft subsequently crashed at 6800 feet AMSL, approximately 47 NM from the Adana radio range. The probable cause is that the pilot was not able to maintain precise altitude and position due to cumulus cloud and turbulent conditions.

Description

The THY F-27 took off from Ankara at 14:20GMT for a flight to Adana. En route the pilot reported passing Aksaray and estimated to arrive at Adana at 15:40GMT. At 15:28 the pilot reported at FL175 and requested a clearance to approach. At 15:40 the flight was cleared to 5000 feet and was asked to report crossing 8000 and 7000 feet. Nothing more was heard from the flight. It appeared the plane had crashed at 6800 feet amsl, some 47nm from the Adana radio range. PROBABLE CAUSE: “According to reports received by the Incirlik tower, the aircraft should have been on the Adana radio range at 1540 hours and at flight level 175. In avoiding cumulus cloud, and associated turbulent conditions, the pilot was not able to keep track of his exact position or to maintain exact altitude.”

Primary Cause

Turbulent conditions and lack of precise altitude and position tracking.Turbulent conditions and lack of precise altitude and position tracking.

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