AMTT
In my Aviation Maintenance class , we have covered all aspects of maintenance and repair on aircraft systems including, landing gear, flight controls, avionics, navigation, instruments, pneumatic and hydraulic systems, fuel and ignition systems, etc. The list is quite long. Along the way I have taken some photographs which are included below.
engine_troubleshooting_assignment.docx | |
File Size: | 19 kb |
File Type: | docx |
Reflective Writing
I have had so much fun and have learned a great deal in this past year and a half. I especially liked the recipricating engine lab. Nick and I overhauled a Conntinental I-O-360. During spring break, I took the witten, oral and practical exams for Airframe and Generals and received my Airmen Mechanics Lisence with an Airframe rating. I have one last class, Turbine Engines, I can hardly wait.
AMTT 2440
Allen and I have just completed the Allison 250 turboshaft test cell and I would like to say a few words about our experience. I was excited when Todd Baird, our instructor informed us that this would be our return-to-service project. The previous class had mounted the engine to the test cell, installed the gauges, hooked up the oil cooler, and had most of the electrical wiring in place. This is where Allen and I took over. The first thing we had to do was connect the cables to the starter and make sure that the engine would motor. Once this was accomplished we made a list of the parts that were missing and the systems that needed to be connected. We spent about a day finding fuel lines and fittings as well as an oil temperature sensor with fittings and a drain plug. We than hooked up the line for the oil pressure gauge and wired the theralcouples for the exhaust temperature gauge. With the oil and fuel connected, we motored the engine and verified that the indicators were functioningm properly. Next we checked the ignition system and found we had no spark. After testing the parts, we replaced the ignition exciter and the igniter and retested the system, we had spark. After succuring a few oil leaks, we noticed that we didin't have any N1 or N2 indication. We installed new connecters for the tach generators and found that one of the tach generators and one of the gauges were malfunctioning, so we replaced them. We charged the battery all night and we were ready to light the fire. After starting the engine, we realized that the N1 tachometer was malfunctioning and the exhaust gas temp gauge was not showing any indication. We replaced the N1 gauge and rewired the EGT gauge and completed another ground run-up. Allen and I take great pleasure in fact that we were the first students to successfully repair and operate the Allison 250 test cell. We would also like to thank our instructor Todd Baird for allowing us the opportunity to work on this project.
AMTT 2440
Allen and I have just completed the Allison 250 turboshaft test cell and I would like to say a few words about our experience. I was excited when Todd Baird, our instructor informed us that this would be our return-to-service project. The previous class had mounted the engine to the test cell, installed the gauges, hooked up the oil cooler, and had most of the electrical wiring in place. This is where Allen and I took over. The first thing we had to do was connect the cables to the starter and make sure that the engine would motor. Once this was accomplished we made a list of the parts that were missing and the systems that needed to be connected. We spent about a day finding fuel lines and fittings as well as an oil temperature sensor with fittings and a drain plug. We than hooked up the line for the oil pressure gauge and wired the theralcouples for the exhaust temperature gauge. With the oil and fuel connected, we motored the engine and verified that the indicators were functioningm properly. Next we checked the ignition system and found we had no spark. After testing the parts, we replaced the ignition exciter and the igniter and retested the system, we had spark. After succuring a few oil leaks, we noticed that we didin't have any N1 or N2 indication. We installed new connecters for the tach generators and found that one of the tach generators and one of the gauges were malfunctioning, so we replaced them. We charged the battery all night and we were ready to light the fire. After starting the engine, we realized that the N1 tachometer was malfunctioning and the exhaust gas temp gauge was not showing any indication. We replaced the N1 gauge and rewired the EGT gauge and completed another ground run-up. Allen and I take great pleasure in fact that we were the first students to successfully repair and operate the Allison 250 test cell. We would also like to thank our instructor Todd Baird for allowing us the opportunity to work on this project.