Aircraft Maintenance Technology

NOV-DEC 2013

The aircraft maintenance professional's source for technological advancements, maintenance alerts, news, articles, events, and careers

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RECIP TECHNOLOGY are imperative for troubleshooting these engines. Simply stated, there are three items that the mechanic will use in troubleshooting: air, fuel, and ignition. A detailed communication with the pilot helps to determine if the engine needs repairs. Sometimes the pilot will report engine problems to the mechanic, but the error may exist in the manner by which the pilot conducts flight operations. After learning the Otto Cycle, students will have a better understanding about turbine engine designs, which operate on the Brayton cycle — a constant-pressure engine. Both of these styles of engines are considered as air pumps. The A&P; student also learns about induction systems which could include the operation of super- and turbo-charger applications. Students learn that piston engine powered helicopters differ in operation than fixed wing versions. In a helicopter application all of the energy produced in the engine is needed to drive the helicopter's transmissions, and they operate at the 1:10 mixture ratio continually, and do not have a cruise setting. When written instructions aren't enough An integral part of basic reciprocal engine theory and training includes being able to read manuals and technical data. AviationPros.com/company/10134757 The predominant engine manufacturers — Rotax, Lycoming, and Teledyne Continental Motors — continually refine their designs for increased reliability and safe operation. Each manufacturer, as mandated by the FAA, must provide written instructions for the inspection, troubleshooting, and repair of the engines. Part 147 training is tied to regulations, and Part 43.13 tells us we must use everything from the manufacturer that is most current, including tools and instructions. Here at Redstone, one of our primary areas of focus is to get our students to be comfortable with reading, comprehending, and truly reliant on the manuals. Oftentimes, a new student doesn't want to take the time to do this — it's much more exciting to start digging in and taking things apart, but the foundation of all AMT expertise has to come from the ability to effectively use the manuals and instructions. This can be a challenge for some, because manuals are often written in a passive voice, and can sometimes be left up to interpretation. Teaching students to understand and think analytically and critically about what they are reading will only stand to help them in every aspect of their career moving forward. Whether that is on the oral and practical exams, job interviews, or on the job, we see this as a critical skill. Another reason we focus so specifically on the ability to read and understand written material is that it helps build confidence in the students. This is a highly regulated, high-stakes career with huge implications of a job not done right. Students can sometimes feel overwhelmed with the responsibility and pressure involved, and decide to leave the program. When we've focused heavily on comprehension and analytical skills, students feel more confident in their capabilities and are less likely to abandon this career path. Back to the basics It can be argued that the airline industry is the safest in the world. Those who accomplish the training and certification to become an AMT have a tremendous responsibility that provides great reward. We, as educators, have the responsibility to ensure that we are delivering the right training — not only the technical aspects, but the foundational and critical thinking skills as well — in order to hold our industry to the level of safety and standards we have today. Basic reciprocating engine theory is part of this foundational training, and we plan to continue to focus on this aspect as an important part of Redstone's overall A&P; program. The more thoroughly we can train tomorrow's AMT, the safer we'll all be in the sky. AMT

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