As the development of the aviation industry expands, more and more aircraft accidents occur. There are many reasons that lead to plane crashes, but one of them is poor maintenance of the plane. Why is good aircraft maintenance so important? Proper maintenance of the aircraft is essential to ensure the proper functioning of the aircraft, each part of the aircraft is in good condition and to ensure the safety of pilots and passengers. Good maintenance has many elements. The most common part is inspections, which pilots perform daily; the main part is the overhaul and repair of an aircraft; and maintenance documentation is another important part of aircraft maintenance. Inadequate maintenance documentation has caused numerous incidents. Aircraft are subject to various stresses, deformations, vibrations and adverse environments. It is important to inspect the aircraft regularly in order to keep it operational, these aircraft inspections being an important part of good maintenance. There are many types of inspection; the most common is pre-flight inspection and post-flight inspection. Under the Canadian Aviation Regulations (CARs), a pre-flight inspection is mandatory for the pilot proficiency check. During a pre-flight inspection, the pilot must use the pre-flight checklist to perform an inspection of the exterior and interior of the aircraft. This is an opportunity for the pilot to check the plane's faults that could cause problems, as well as the readability of the radio signals. (The order of a pre-flight inspection) Usually, the order of a pre-flight inspection starts at the cabin, up to the tail, then right wing trailing edge, right wing, next nose , and left wing, leading edge of the left wing, last trailing edge of the left wing. Only the plane...... middle of paper ......p., nd Web. January 1, 2014. “PRE-FLIGHT INSPECTION”. 172RG POH. Np, and Web. January 5, 2014. “Proper Documentation Means Better Aircraft Maintenance – Documents Aircraft Owners Should Have |. Proper Documentation Means Better Aircraft Maintenance – Documents Aircraft Owners Should Have. Jason Blair, August 18, 2013. Web. January 3, 2014. “Aircraft Maintenance Basics.” The basics of aircraft maintenance. SBI and Web. January 3, 2014. “Why is aircraft maintenance so important?” Why is aircraft maintenance so important?. Np, and Web. December 31. 2013. .