Aircraft Maintenance Inspection & Troubleshooting 1 — Questions and Answers
Question 1: What is the primary purpose of a pre-flight inspection in aircraft maintenance?
- To increase fuel efficiency
- To verify airworthiness and safety before flight (Correct answer)
- To clean the exterior of the aircraft
- To record passenger details
Correct answer: To verify airworthiness and safety before flight
The primary purpose of a pre-flight inspection in aircraft maintenance is to verify the airworthiness and safety of the aircraft before each flight. This critical procedure involves a thorough visual and functional check of key systems and components to ensure they are in proper working order, confirming the aircraft's readiness for safe operation.
Question 2: Which instrument is commonly used for detecting cracks in aircraft structures?
- Eddy current tester (Correct answer)
- Infrared thermometer
- Barometer
- Vernier caliper
Correct answer: Eddy current tester
An eddy current tester is a non-destructive testing (NDT) instrument commonly used in aircraft maintenance to detect surface and subsurface cracks, corrosion, and other discontinuities in conductive materials like aluminum alloys. It works by inducing eddy currents in the material and detecting changes caused by flaws, making it essential for structural integrity checks.
Question 3: What is the recommended action when an aircraft engine experiences abnormal vibration during operation?
- Ignore it if the aircraft is still flying
- Increase engine speed to stabilize the vibration
- Shut down the engine and inspect for faults (Correct answer)
- Continue flying and report it later
Correct answer: Shut down the engine and inspect for faults
Abnormal engine vibration during operation is a serious indication of a potential mechanical fault that could lead to catastrophic failure. The recommended action is to immediately shut down the engine (if safe to do so) and conduct a thorough inspection to identify and rectify the underlying cause, prioritizing safety above all else.
Question 4: Which type of corrosion is most commonly found on aluminum aircraft structures?
- Galvanic corrosion
- Pitting corrosion (Correct answer)
- Uniform corrosion
- Intergranular corrosion
Correct answer: Pitting corrosion
Pitting corrosion is a localized form of corrosion that creates small holes or pits on the surface of a metal, commonly found on aluminum aircraft structures. It is particularly dangerous because it can penetrate deeply into the material, significantly weakening the structure even with minimal visible surface damage, making it a critical concern in aircraft maintenance.
Question 5: What is the function of a borescope in aircraft maintenance?
- To measure airspeed
- To inspect internal aircraft components without disassembly (Correct answer)
- To detect radio signals
- To clean fuel lines
Correct answer: To inspect internal aircraft components without disassembly
A borescope is an optical instrument used in aircraft maintenance to visually inspect internal components of engines, airframes, and other systems without requiring extensive disassembly. This non-destructive inspection method saves significant time and cost while allowing technicians to identify potential issues like cracks, wear, or foreign object damage in hard-to-reach areas.
Question 6: What is the purpose of an aircraft logbook in maintenance procedures?
- To record passenger complaints
- To track maintenance history and compliance (Correct answer)
- To schedule flight routes
- To store aircraft fuel data
Correct answer: To track maintenance history and compliance
An aircraft logbook is a vital legal document that meticulously records all maintenance, repairs, modifications, and inspections performed on an aircraft throughout its operational life. It serves as a comprehensive history, ensuring compliance with airworthiness directives and regulatory standards, and is essential for determining the aircraft's current status and value.
Aircraft Maintenance Inspection & Troubleshooting 1
What is the primary purpose of a pre-flight inspection in aircraft maintenance?