Incident Overview
Date: Saturday 25 August 1973
Aircraft Type: Fokker F-27 Friendship 600
Owner/operator: Imperial Iranian Air Force – IIAF
Registration Number: 5-209
Location: near Chalus –
ÿ Iran
Phase of Flight: Unknown
Status: Destroyed, written off
Casualties: Fatalities: 5 / Occupants:
Component Affected: The aircraft’s flight control system and altitude instrumentation.The aircraft’s flight control system and altitude instrumentation.
Category: Accident

A Fokker F-27 aircraft crashed at an altitude of 5000 feet during descent, registering as 5-209. The aircraft was allocated to be registered 5-8809, but was operating with an incorrect approach procedure. The crash occurred due to a miscalculation of altitude during descent.A Fokker F-27 aircraft crashed at an altitude of 5000 feet during descent, registering as 5-209. The aircraft was allocated to be registered 5-8809, but was operating with an incorrect approach procedure. The crash occurred due to a miscalculation of altitude during descent.
Description
The Fokker F-27 struck a mountain at 5000ft as it descended on a wrong approach procedure. The aircraft was allocated to be registered 5-8809, however at the time of the crash it was still 5-209.
Primary Cause
Incorrect approach procedure leading to a loss of altitude and subsequent loss of control.Incorrect approach procedure leading to a loss of altitude and subsequent loss of control.Share on: