Imagine driving in bumper to bumper traffic. Oh! No need to imagine. Just drive your car and on most of the roads, you witness this. Your chance of surviving the traffic without hurting yourself or your car depends not only on your driving skills, but depends significantly on the skill level of the fellow driver and also significantly depends on the serviceability of vehicle sensors which would warn the driver if the vehicle intercept or come closer to other vehicles.
Principal Structural Element (PSE) is an element of the aircraft that contributes significantly to the carrying of flight, ground, or pressurization loads and whose integrity is essential in maintaining the overall structural integrity of the airplane.
Flight safety begins with the design of the aircraft. This means not only that the structures, systems, flight performance, flight qualities, etc. must comply with the applicable requirements, but they also need to provide instructions for maintenance of the aircraft for repairs during the operational life.
LRU is an acronym which stands for Line Replaceable Unit.
An LRU can be a Rotable, Repairable or Expendable inventory item of the aircraft or the engine that can be removed and installed. These are modular components that are designed for quick replacement.
Aircraft Maintenance has evolved with time. Initially, maintenance was mostly reactive. What fails would be fixed. Gradually, a concept called Built-in test equipment (BITE) was introduced which refers to passive fault management and diagnosis equipment built within the module to support maintenance.
If I am told to suggest one quote, it would be from Edward A. Murphy Jr whose quote is popularly known as Murphy’s law.
Murphy’s law states that “Anything that can go wrong will go wrong”. Let us decipher with examples.
As an aviation enthusiast Graduate Engineer, one may seek a career in design or production or assembly or aircraft maintenance or documentation. All these verticals can have Learnings from Murphy’s law.
We have heard of companies such as Airbus, Boeing, Dassault, Embraer, Pilatus etc. These companies are Aircraft manufacturers, and they are called Airframers.
Who is an OEM?
Not all parts (components) of the aircraft are manufactured by the airframer. They buy products and spares from experts who are specialized in such product manufacturing. These companies are called Original Equipment Manufacturers (OEM).
Let us understand how and who names our airplane?
Before understanding airplane nomenclature, I recommend you read the blog linked here about the difference between aircraft and airplane.