How to Avoid a Mid Air Collision?
Last Month’s there was a terror in the air as
two Boeing 747 planes narrowly missed a dramatic Mid-Air Collision above
Scotland. According to what I read on
the news the information about this incident was very disconcerting by the appropriate
authorities who are investigating the incident, also is very important to
consider these delicate events for the prevention of future incidents like this
one. I’m writing this words on my Safety Blog for review why causes of Midair’s
and how to avoid a Mid Air Collision in the future if you as a Pilot are
involved in any , you never know , the most important is to understand well what causes in
flight collisions ??
The two planes carrying about 1000 passengers
on board escaped a possible crash which was about to emerge after pilots
misunderstood the flight instructions received from the air traffic control
tower.
So, the controller saw that the two huge
aircraft were too close to one another as they were 48 kilometers (29 miles)
north of Scotland’s capital of Glasgow and preparing to cross the Atlantic. So
he ordered the pilots to take different directions.
The danger was first noticed when the 747s were
16 kilometers(10 miles )separately, but after a minute they were 5 km (3 miles
) away and still closing in.
The ATC rapidly told the plane on the left to
make a left turn and the one on the right to make a right turn in order to get
more separated.
But impressively, all pilots apparently
misunderstood the instructions and instead of moving apart, they brought the
two jets very close together, as close as 30 meters from each other.
A tragedy was avoided at the last moment when
the pilots on each plane saw each other and performed evasive maneuvers with
one aircraft going up and the other moving down.
This was investigated by the corresponding
authorities and cannot explain how all four pilots confused the correct
instructions. The incident was uncovered and presented by the correspondent
authorities which analyses the events what’s going in the airspace.
On my previous post I wrote something about a
good understanding of the TCAS, I cannot say whether if the crews of the both
planes received some resolution advisories (RA) when altitude encoding intruders
come within 30 seconds of CPA , the computers calculates the vertical rate that
must be achieved to maintain safe operation from threat aircraft . So, the most
important is to understand that when corrective (RA) are required, the aural
advisories include: Traffic, Traffic, Climb, Climb, Climb, Descend, Descend, Climb Crossing Climb, Descend Crossing Descend, Reduced
Climb or Reduced Descend .
These are considered normal (RAs) If no
corrective action is needed, the alert is called a preventative RAs, and the
aural advisory is Monitor Vertical Speed. And after an intruder aircraft is no
longer a threat, the aural message is Clear of Conflict. I’m sure that any
Pilot in particular understands very well the operation and the concept of the TCAS.
But, what causes in flight collisions? Well, if
you read what FAA authors said regarding this issue you can better understand
what I want to express, I want to share to all pilots to be up-to-date
concerning what I’m writing today.
By definition and
function, the human eye is one of the most important and complex systems in the
world. Basically, its job is to accept images from the outside world and
transmit them to the brain for recognition and storage. In other words, the
organ of vision is our prime means of identifying and relating to what is going
on around us.
It has been estimated
that 80 percent of our total information intake is through the eyes. In the
air, we depend on our eyes to provide most of the basic input necessary for
performing during a flight: attitude, speed, direction, and proximity to things
(like the ground), and opposing air traffic that may constitute a danger of
in-flight collision. As air traffic density and aircraft closing speeds
increase, the problems of in-flight collision grows proportionately, and so
does the importance of the "eyeball system." A basic understanding of
the eyes' limitation in target detection is probably the best insurance a pilot
can have against running into another airplane - something that can spoil your
whole day.
So, my only purpose of this series of information
is concerning How to Avoid a Mid Air Collision and also is to provide all the
Aviation Community around the world who read my Blog with safety information
that is informative for the prevention of future incidents and accidents.
Keep in mind no matter how many hours you have
logged on your Log Book, or how many years are you flying as a Pilot the most important
is to be up dated all the time, be alert, expect the unexpected Safety begin
with Team Work. Always Fly Safely !!!
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