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Benefits from the Application of TRIPOD Methodology
Tripod Methodology assists investigators:
• To easily structure an investigation,
•
To distinguish all relevant facts
•
To make causes and effects explicit
•
To encourage team discussion
•
To reduce the report writing task
•
To increase the quality of corrective actions
•
But most importantly to offer the Organisation the opportunity to create a link between previous
Risk Analysis and accident aftermaths that profoundly assists the creation of a Learning
Organisation Entity.
THE HELIOS ACCIDENT
From early noon on August 14th 2005, it was known that a flight of an aircraft in a hypoxic and
extremely cold Environment for quite some time would have by all means led all HELIOS Crew &
Passengers into an “Incapacitation” status.
Therefore, there was not much left to be done to protect “Our Object”, into the Red-Green Box, (Crew
& Passengers) from fatality , which was the subsequent event after the action of the Change Agent
(Fuel Starvation of the Engines ) on the still intact hull of the aircraft.
In starting a TRIPOD Beta Investigation it is important to be able to create “trios”, Tripods, which are
formed by three elements. (a) The Object which has the potential of “receiving” change -mostly
unwanted- from (b) the change agent and which, if the “Barriers” are not proved effective will lead to
an (c) outcome-event which will definitely be in favor of no one. The Investigation that follows an
accident aiming at Barriers identification, which are
afterwards categorized, either as “Failed”
,“Missing” or “Effective”, if they did succeed in stopping the accident sequence.
Μissing Barriers require enormous changes and consume time, while Failed Barriers are easier for
mitigation.
The Fifth TRIPOD
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