Incident Overview

Date: Wednesday 7 April 1999
Aircraft Type: Boeing 737-4Q8
Owner/operator: THY Turkish Airlines
Registration Number: TC-JEP
Location: near Ceyhan – ÿ Trkiye
Phase of Flight: En route
Status: Destroyed, written off
Casualties: Fatalities: 6 / Occupants: 6
Component Affected: Boeing 737Boeing 737
Category: Accident
A Boeing 737 crashed in Dana, Indonesia, after takeoff due to severe weather conditions. The wreckage was found to be scattered over a 500 square foot area, and a 10-meter deep hole was discovered at the impact point. The investigation suggests severe weather likely contributed to the accident, with potential issues with pitot static anti-ice system activation, inadequate cockpit indications, and crew attentiveness.A Boeing 737 crashed in Dana, Indonesia, after takeoff due to severe weather conditions. The wreckage was found to be scattered over a 500 square foot area, and a 10-meter deep hole was discovered at the impact point. The investigation suggests severe weather likely contributed to the accident, with potential issues with pitot static anti-ice system activation, inadequate cockpit indications, and crew attentiveness.

Description

The Boeing 737 departed Adana at 00:36 for a flight to Jeddah to pick up Turkish pilgrims. Weather was poor when the plane crashed, nine minutes after takeoff. The wreckage was found to have been scattered over a 500sq feet area. Also, a 10 m deep hole was found at the point of impact. CONCLUSIONS: – The severe weather conditions probably contributed to the cause of the accident. – The pitot static anti-ice system was probably not activated during preparations for flight because of missed checklist items. – The crew failed to recognize the cause of an erratic airspeed indication. – The crew failed to use other cockpit indications for control and recovery of the airplane. – The presence of cabin crew in the cockpit probably distracted the attention of the cockpit crew.

Primary Cause

Severe weather conditionsSevere weather conditions

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