Aviation Changing Aviation. How That Happened?
Aviation counts more than a hundred years from the very first airplane made by Wright brothers. And during these years it had improved and still improves with every day. However, experience brings the greatest knowledge, and as sad as it gets – aviation is exactly that field where real practice and experience builds the greatest improvements. Therefore, many great improvements, which today are absolutely normal for the aviation world, have been added only after sad or even tragic occurrences. Let’s look through the most interesting ones.
We all know that English – is official aviation language. However there is more than just knowing the language. Different cultures, languages, dialects and lexicons form a certain background, where same language can be used and understood differently. After 1977 when two aircraft has collided on the runway at Tenerife Norte Airport (former Los Rodeos Airport) because of the miscommunication between the pilots and ATC the standardized air traffic control phraseology has been established.
It makes sense that fire detectors should be installed inside the aircraft. However, it used to be that there were no such thing in some places of the aircraft like lavatories or cargo holds. However, these are the exact places were the accidents happened. In 1983 Air Canada flight 797 was flying over Kentucky when the fire started behind the bathrooms. Even though pilots managed to make an emergency landing, just half of the passengers got out on time. More than 10 years after this incident another fire had started in jet of ValuJet in Florida. The fire started in a cargo hold from the chemical oxygen generators. One hundred and ten people have died. As a result of that, fire detectors have been mandatory in bathrooms and cargo holds since these accidents.
Today, more than 100 000 flights per day are being conducted worldwide. Even though usually we don’t see any other planes while flying that doesn’t mean that there aren’t any. You probably all know, that to handle traffic with other planes there are Traffic Collision Avoidance System (TCAS) implemented in every aircraft. However it wasn’t like that before. Federal Aviation Administration release first mandatory regulation only after aircraft collision in 1986. That year a small Piper aircraft drifted into LAX airspace and collided with a commercial DC-9. 72 people have been killed during this accident. After this accident the Federal Aviation Administration required that all jets in US airspace be equipped with the Traffic Collision Avoidance System (TCAS), and required that light aircraft operating in dense airspaces be equipped with Mode C transponders which can report their altitude. From that day TCAS systems has been improved many times and is still used in every aircraft.
There is no doubt that every aviation accident is painful and sad thing, however, there are some of those occurrences that leaves a real deep scar in aviation or even all society. This is exactly what caused the 9.11 terrorist attacks in 2001. Actually it has influenced aviation in many levels. First of all the airports’ security has been tightened up in so many levels. A full body scan, liquid on board limitations, full scan or check of the cabin baggage, you even have to take off your shoes while going through the security in order to make sure that none of the dangerous things would be carried on board. After the 9.11 thousands and thousands security personnel members has been employed to meet the increased need of security.
Also after the 9.11 some changes have been done with cockpit door security. It has been changed to much more secure, having the code pads which is required to be entered right in order to get into the cockpit. In addition to that, after the code has been entered correctly, the pilot inside has a right to decide whether person can enter the cockpit or not. If he decides negatively – the door stays shut, and users’ who is trying to get in account is frozen for 5 minutes. It looked really smart and secure decision for many years. However, it only looked like it until another real occurrence with Germanwings which once again proved that only the real experience can show all the flaws.
Despite all the facts mentioned above about the aviation safety, with every year it keeps growing, leaving behind the transportation by cars, train, or ships and still being the safest way to travel.
Source: BAA
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