Thierry Dubois is a freelance writer specializing in helicopters, business aviation and aerospace technology. He earned a degree in fluid dynamics from an engineering school in Toulouse, France in the mid-1990s. At an unexpected crossroads, he found his first job in journalism. In 1997, he started working for French aerospace weekly Air &amp; Cosmos in Paris. This lasted until 2000, when he moved south to Lyons. He then became a freelancer, working for various aerospace publications and has been part of the AIN team since late 2000. In addition to writing about business aviation, Thierry shares responsibility for the rotorcraft section. He also is a regular on-site writer for AIN’s daily editions at international airshows such as the Paris, Farnborough, Dubai and Singapore shows, as well as at EBACE in Geneva.
In 2007, he won the Honeywell award for “Best systems or technology submission” at the Aerospace journalist of the year awards. In 2013, he won an Aerospace Media Award for the "Best Safety, Training &amp; Simulation Submission."
In other activities, Thierry moderates international conferences on aviation technology topics. Thierry is married and has three children, who seem to begin enjoying the mountains–as their parents do.

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Thierry Dubois

Following the <a href="https://www.ainonline.com/aviation-news/business-aviation/2016-04-29/airbus-h225-crashes-norway-killing-13">fatal crash of an Airbus Helicopters H225 in Norway on Friday</a>, the EASA has issued an emergency AD for the EC225LP/H225, requiring inspections of three suspension bars (lift struts) located around the main rotor assembly before any further flight. The chip detectors of the main gearbox, as well as the oil filter, also must be checked for absence of metallic particles.

 


According to the UK Air Accidents Investigation Branch (AAIB), detection and identification of such particles could have prevented the 2009 fatal accident of an AS332L2 Super Puma, when the main rotor separated in flight. The third step of the mandated inspection for the EC 225LP/H225 is for those equipped with the M’Arms vibration health monitoring system to download data and check for any threshold exceedance.

 


The Norwegian Accident Investigation Board (AIBN) yesterday ruled out “human error on board.” Airbus Helicopters said the cause should therefore be looked for in design, production or maintenance. After preliminary examination of the vertical shaft that drives oil pumps, the airframer believes the cause is different from the issue that caused two serious incidents in 2012—a problem <a href="https://www.ainonline.com/aviation-news/business-aviation/2015-02-06/airbus-helicopters-ad-superseded" target="_blank">since solved</a>.

News about significant aircraft accidents and information from accident reports.

EASA Issues Emergency AD for Airbus Helicopters H225

Norwegian investigators rule out “human error on board."

2024 Corporate Aviation Leadership Summit

Amy Wilder

News and issues relating to business, corporate and private aviation, primarily regarding turbine-engine-powered airplanes and helicopters. Subjects include aircraft, engines, maintenance, operations, personnel, acquisitions, accidents, safety, security, and training.

Pilot died of cardiac arrest during the flight

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News and information on safety procedures and concerns.

Six fatal accidents resulted in 22 fatalities in the quarter

NBAA Report Flags Powerplant, Collision Risks in Q2 Data

Curt Epstein

News and issues relating to international air transport and cargo carriers, national airlines and regional airlines, including aircraft, engines, personnel, acquisitions, accidents, safety, security and training.

Twenty years ago, a business jet and commerical airliner collided; the smaller airplane survived

Remembering a Solemn Anniversary: the Amazon Midair 

David Jack Kenny

Preliminary and final accident reports, September 2026

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News and issues regarding all manner of civil and military rotorcraft and their powerplants, including helicopters, tilt rotors and unmanned air vehicles.

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Preliminary and final accident reports, September 2026

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Helicopter experienced a vertical hop for which the pilot didn’t know the recovery procedure

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