Incident Overview

Date: Monday 15 April 1985
Aircraft Type: Boeing 737-2P5
Owner/operator: Thai Airways
Registration Number: HS-TBB
Location: 18 km from Phuket International Airport (HKT) – ÿ Thailand
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 11 / Occupants: 11
Component Affected: Aircraft enginesAircraft engines
Category: Accident
A pilot reported a loss of DME signal shortly after receiving clearance to descend to 3000 feet. ATC requested a VOR approach to runway 09 instead of a visual approach. The crew radioed that they lost both engines while passing 3400 feet and nearly hit a mountain. The aircraft crashed into a mountain at 800 feet.A pilot reported a loss of DME signal shortly after receiving clearance to descend to 3000 feet. ATC requested a VOR approach to runway 09 instead of a visual approach. The crew radioed that they lost both engines while passing 3400 feet and nearly hit a mountain. The aircraft crashed into a mountain at 800 feet.

Description

Four minutes after receiving clearance to descend to 3000 feet, the pilot reported he wasn’t receiving the DME signal. At 23:24 Phuket ATC asked if the crew preferred a VOR approach to runway 09 instead of a visual runway 27 approach. The approach to runway 27 was continued, until the crew radioed that they had lost both engines, while passing 3400 feet and that they nearly hit a mountain. The aircraft eventually crashed into a mountain at 800 feet.

Primary Cause

Loss of DME signal and subsequent loss of both engines during a descent.Loss of DME signal and subsequent loss of both engines during a descent.

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