When it comes to safety, the airline industry must definitely be uncompromising. Proper airplane maintenance is vital for preserving aircraft and aircraft components in optimal condition and guaranteeing the safety of pilots, crew, and passengers. Airplanes have evolved safer with each new generation; high-level designs and safety policies are key grantors to current record-low accident rates. But frontloading all the safety criteria possible into a new plane could still suggest nothing if a little crack shifts into a disastrous collapse somewhere else on the plane.
Maintenance plans are developed and generated for every new type of aircraft based on prior experience with related materials, engines, components, or structures. New materials or structures, for which experience is insufficient, are examined more frequently until a fundamental level of reliance is rooted. The detailed methods suggested by the engine manufacturer should be observed when conducting inspections or maintenance.
The planning of spare engines and engine parts is a challenging and essential assignment for airlines to seamlessly maintain flying and engine repair services. Engines are expensive and crucial assets that make this problem significant from the financial and operational perspectives. Various airplane parts need inspecting or replacing after diverse time points – estimated by flight hours.
Planes have developed safer with every new generation; high-level designs and safety policies are key contributors to contemporary record-low accident rates. There are four checkpoints in airplanes maintenance, each of which has its own time and procedure.
A-checks and B-checks are the slighter inspections, typically performed overnight and including visual observations of engines, landing gear, control surfaces, and additional essential systems as well as routine maintenance, such as fluid analyses and examination of security systems, like evacuation slides. C and D checks are more detailed inspections.
Within a C check, which is performed every 15 to 21 months, nearly the complete aircraft is examined. This implies that the airplane is out of service until the maintenance is completed, a means that can take up to 2 weeks to finish. D-checks are major events, happening roughly every decade of active use, that includes taking apart utmost parts, from the turbines to the electronics to the landing gear and even the insides, for a more accurate, deep-tissue examination. These checks can endure several months and require millions of dollars, including parts replacement and varied heavy-maintenance treads.
In expanding to these checks, the maintenance crew must retain a complete record of the operational state of all facilities onboard the airplane. If the flight crew notices any omission, they must inform maintenance who will determine whether to take the plane offline to mend it, or to defer it. This decision depends on the MEL, or minimum equipment list, that the airplane must adhere to in order to be airworthy.