IHST - 12 Classic Helicopter Accident Pitfalls

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Information about IHST - 12 Classic Helicopter Accident Pitfalls
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Published on March 14, 2014

Author: IHSTFAA

Source: slideshare.net

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Pitfalls and personal attitudes that helicopter pilots need to watch for as they fly.

12 Classic Accident Pitfalls

Nick Mayhew - Mike Phillips -

Objectives • Identify 12 classic accident pitfalls. • Define what is dangerous. • Give real examples. • How do we do it safely?

#1 Classic Pitfall Responding to peer pressure. G-CRST, A109, Central London 16 January 2013 #1 Classic Pitfall Responding to Peer Pressure.

#1 Classic Pitfall Responding to peer pressure. G-CRST, A109, Central London 16 January 201 Responding to Peer Pressure This is poor decision making based upon emotional responses to peers rather than evaluating a situation objectively.

16 January 2013

Central London En route for passenger pick up

G-CRST, A109, Central London 16 January 2013

#2 Classic Pitfall Mental Expectancy.

Mental Expectancy The inability to recognize and cope with changes in a situation different than that anticipated or planned. Visual illusions and similar aural sounds occurring at the “wrong” time often lead to such miscues.

#1 Classic Pitfall Responding to peer pressure. Map G-CRST, A109, Central London 16 January 2013 10 December 1993

Sightseeing Flight 14 NM SE of airport Flagstaff, AZ

#3 Classic Pitfall Get-there-it-is.

Get-There-It-Is This “disease,” common among pilots, clouds the vision and impairs judgment by causing a fixation on the original goal or destination combined with a total disregard for any alternative courses of action.

21 June 1985

Ship to Shore Resupply Mission Near Tayport, UK

#4 Classic Pitfall Duck Under Syndrome.

Duck Under Syndrome The tendency to “sneak a peek” by descending below minimums during an approach. Based on a belief that there is always a built in “fudge factor” that can be used or an unwillingness to admit defeat and shoot a missed approach.

27 September 2008

HEMS Patient Transfer 3.2 NM North of Andrews AFB

#5 Classic Pitfall Scud Running.

Scud Running Pushing the capabilities of the pilot and the aircraft to the limits by trying to maintain visual contact with the terrain while trying to avoid physical contact with it.

26 December 2011

The aircraft departed Mayo Clinic on a medical transport mission and impacted terrain 17 minutes later.

#6 Classic Pitfall Continuing VFR into IMC.

Continuing VFR Into IMC The all-to-often result of the practice of scud running when this becomes the only alternative to flying into the ground. It is even more dangerous if the pilot is not instrument qualified or is unwilling to believe what the instruments are indicating.

27 July 2013

Planned Route of Flight Passenger Drop Off Flight Noxen, PA

#7 Classic Pitfall Getting Behind The Aircraft.

Getting Behind The Aircraft Allowing events or the situation to control your actions rather than the other way around. This is characterized by a constant state of surprise at what happens next.

#8 Classic Pitfall Loss of Positional/Situational Awareness.

Loss of Positional/Situational Awareness Another case of “getting behind the aircraft” which results in not knowing where you are, and an inability to recognize deteriorating circumstances and/or the misjudgment of the rate of deterioration.

28 May 2012

Platform ST67B Gulf of Mexico Passenger Pickup

#9 Classic Pitfall Operating Without Sufficient Fuel Reserves.

Operating Without Sufficient Fuel Reserves Ignoring minimum fuel reserve requirements under either Visual Flight rules or Instrument Flight Rules. This is generally the result overconfidence, a lack of flight planning, or deliberately ignoring the regulations.

6 August 2011

Mosby, MO HEMS Patient Transfer Planned Route Of Flight

#10 Classic Pitfall Descent Below Minimum Enroute Altitude.

Descent Below Minimum Enroute Altitude The duck-under syndrome (mentioned earlier) manifesting itself during the en route portion of an Instrument Flight Rules operation.

22 April 1994

Planned Track Actual Track HEMS Patient Transfer Bluefield WV

#11 Classic Pitfall Flying Outside the Envelope.

Flying Outside the Envelope Unjustified reliance on the (usually mistaken) belief that the aircraft’s high performance capabilities meet the demands imposed by the pilot’s (usually overestimated) high performance flying skills.

4 May 2000

Blanding, UT Seismic Survey

#12 Classic Pitfall Neglect of Flt Planning, Checks, Pre-Flights, Etc.

Neglect of Flt Planning, Checks, Pre-Flights, Etc. Unjustified reliance on the pilot’s (usually overestimated) short and long term memory of regular flying skills, of repetitive and familiar routes, etc.

9 June 2009

Search and Rescue Mission near Santa Fe, NM

12 Classic Pitfalls - Summary • Responding to peer pressure. • Mental expectancy. • Get-there-it is. • Duck Under Syndrome. • Scud Running. • Continuing VFR into IMC. • Getting Behind The Aircraft. • Loss of Positional/Situational Awareness. • Operating Without Sufficient Fuel Reserves • Descent Below Minimums En Route. • Flying Outside The Envelope. • Neglect of Flt Planning, Checks, Pre Flights etc.

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