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International Helicopter Safety Team. Certification/Maintenance Workshop U.S./Europe International Aviation Safety Conference June 6-8, 2006 Portland, Oregon. International Helicopter Safety Team.

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international helicopter safety team

International Helicopter Safety Team

Certification/Maintenance Workshop

U.S./Europe International Aviation Safety Conference

June 6-8, 2006

Portland, Oregon


International Helicopter Safety Team

  • AHS Montreal-Ottawa Chapter, supported by Helicopter Association International, major airframe and engine OEMs, U.S. Navy Safety Center, U.S. Army Safety Command, hosts International Helicopter Safety Symposium 2005 in Montreal, September 26-29, 2005.
  • Purpose of IHSS 2005 was to initiate an international collaborative effort to reduce accidents in the vertical flight industry, both civil and military.
  • 260+ people attend, including civil and military operators, manufacturers, and government regulators (ICAO, FAA, Transport Canada, Transportation Board of Canada, others).

International Helicopter Safety Team

  • IHSS 2005 addressed safety management of the full range of vertical flight operations, including emergency medical, search and rescue, offshore oil, law enforcement, fire fighting, heli-logging, construction, executive transport and homeland security.
  • It also encompassed military (non-combat) and paramilitary operations.

International Helicopter Safety Team

Representative 2004 Accident Rates per 100,000 Flight Hours:

U.S. General Accident Rate 6.22

U.S. Civil Helicopter Accident Rate 8.09

U.S. Civil Turbine Helicopter Accident Rate 5.11

U.S. On Demand Air Taxi Accident Rate 2.21

U.S. Air Carrier (CFR 121) Accident Rate 0.159

Source: Aviation Underwriters Association


International Helicopter Safety Team

  • Definition of Civil Accident (ICAO Annex 13 and NTSB – 14 C.F.R. 830.2):
  • “Aircraft accident” means an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight and all such persons have disembarked, and in which any person suffers death or serious injury, or in which the aircraft receives substantial damage.

International Helicopter Safety Team

  • Definition of Substantial Damage:
    • “Substantial damage” means damage or failure which adversely affects the structural strength, performance or flight characteristics of the aircraft, which would normally require major repair or replacement of the affected component.
    • Engine failure or damage limited to an engine if only one engine fails or is damaged, bent fairings or cowling, dented skin, small puncture holes in the skin fabric, ground damage to rotor or propeller blades, and damage to landing gear, wheels, tires flaps, engine accessories, brakes, or wingtips are not considered “substantial damage” for the purpose of this part.

International Helicopter Safety Team

  • IHSS 2005 Outcome:
  • IHSS Attendees agree that the helicopter accident rate is too high and must be reduced.
  • IHSS attendees adopt goal of reducing helicopter accident rate by 80% within 10 years.
  • IHSS attendees agree to pursue goal using a process modeled after the successful scheduled air carrier initiative known as the “Civil Aviation Safety Team” or CAST.

International Helicopter Safety Team

IHST Master Plan (Summary)

  • Mission
    • To provide government, industry and operator leadership to develop and focus implementation of an integrated, data-driven strategy to improve helicopter aviation safety worldwide, both military and civil.
  • Vision
    • To achieve the highest levels of safety in the international helicopter communities by focusing on appropriate initiatives prioritized to result in the greatest improvement in helicopter aviation safety.
  • Goal
    • To reduce the helicopter aviation accident rate by 80 percent by 2016.

Executive Committee







ihst a three stage process
IHSTA Three-Stage Process



Implement Safety Enhancements - U.S.

Set Safety


Agree on

problems and interventions

Influence Safety Enhancements - Worldwide

Achieve consensus on


Integrate into existing work and distribute


International Helicopter Safety Team

  • Joint Helicopter Safety Analysis Team (JHSAT) Charter:
    • Conduct, review and approve detailed accident report analysis and identify causal factors;
    • Investigate and recommend improvements and develop mitigation strategies to allow goal achievement and periodic status measurements;
    • Draft action plans to determine intervention strategies and milestones for IHST approval.

International Helicopter Safety Team

  • Joint Helicopter Safety Implementation Team (JHSIT) Charter:
    • Develop and prioritize implementation strategies;
    • Carry out rigorous cost-benefit analysis for implementation strategies to achieve IHST goals;
    • Develop action plans;
    • Coordinate implementation of IHST-approved strategies;
    • Develop and track performance;
    • Determine progress in meeting major milestones and effectiveness of interventions.

International Helicopter Safety Team

IHST Executive Committee consists of:

Government Co-Chair Dave Downey, FAA

Industry/Operator Co-Chair Matt Zucarro, HAI

Secretariat Rhett Flater, AHS

Member Bob Sheffield, Shell Aircraft

Member Somen Chowdhury, IHSS Chair

Member Don Sherritt, Transport Canada


International Helicopter Safety Team

Organizers’ intent is to make IHST broadly inclusive, and include

  • Operator associations (HAI, ALEA, TOPS, etc.) and major operators (including military)
  • Airframe OEMs such as AgustaWestland, Bell, Boeing, Enstrom, Eurocopter, Kaman, MD Helicopters, Robinson, Schweizer, Sikorsky and others;
  • Engine OEMs such as GE Aircraft Engines, Honeywell, Rolls-Royce, Turbomeca, Lycoming and others; systems house and suppliers, and
  • The regulatory community (FAA, Transport Canada, ICAO, EASA, etc).

International Helicopter Safety Team

IHST Strategic Approach:

  • To create a team that will implement the vision and goal;
  • To manage and maintain an effective and responsive infrastructure;
  • Enable a data-driven approach to safety;
  • Implement selected intervention strategies;
  • Promote international aviation community partnerships;
  • Maintain and support processes that support IHST work activities.

International Helicopter Safety Team

IHST is a joint, international voluntary effort to improve helicopter safety.