Top 10 Questions for Utility Helicopter Repairer Interview

1. How would you approach troubleshooting a hydraulic system leak?

To troubleshoot a hydraulic system leak, I would first conduct a visual inspection to identify the location and severity of the leak. I would then check the hydraulic fluid level and inspect the lines and fittings for any damage or loose connections. If the leak is minor, I may attempt to repair it using a sealant or a patch. However, if the leak is significant or the source cannot be easily identified, I would consult the manufacturer’s maintenance manual or seek assistance from a qualified mechanic.

2. Describe the process of performing a tail rotor driveshaft inspection.

Visual Inspection

• Inspect the driveshaft for any signs of damage, such as cracks, bends, or corrosion.
• Check the universal joints for play or binding.
• Examine the mounting hardware for any signs of looseness.

Operational Check

• Start the engine and allow the helicopter to idle.
• Slowly increase the rotor RPM and listen for any unusual noises or vibrations.
• Inspect the driveshaft for any excessive movement or deflection.

3. How would you determine the cause of an engine vibration?

To determine the cause of an engine vibration, I would first check the engine mounts for any signs of wear or damage. I would then inspect the propeller for any imbalances or damage. If the mounts and propeller appear to be in good condition, I would use a vibration analyzer to measure the vibration levels at different points on the engine. The analyzer can help me identify the source of the vibration, such as a faulty bearing or an unbalanced component.

4. What are the steps involved in replacing a helicopter battery?

• Disconnect the battery cables, starting with the negative (-) terminal.
• Remove the old battery from the helicopter.
• Clean the battery terminals and the battery tray.
• Install the new battery in the helicopter.
• Connect the battery cables, starting with the positive (+) terminal.
• Tighten the battery terminals securely.
• Check the battery voltage using a voltmeter to ensure it is within the manufacturer’s specifications.

5. How would you troubleshoot a fuel system issue?

Troubleshooting a fuel system issue involves identifying the source of the problem and implementing appropriate repairs. I would first check the fuel level and ensure that the fuel is clean and free of water or debris. I would then inspect the fuel lines and fittings for any leaks or damage. If the fuel system appears to be intact, I would check the fuel filter for any signs of clogging or contamination. Additionally, I would inspect the fuel pump and carburetor to ensure they are functioning properly.

6. Describe the process of performing a transmission oil change.

• Warm up the transmission to operating temperature to allow the oil to drain more easily.
• Place an oil drain pan under the transmission.
• Remove the drain plug and allow the oil to drain completely.
• Replace the drain plug and tighten it securely.
• Fill the transmission with the specified type and amount of oil.
• Check the oil level using the dipstick and ensure it is within the recommended range.

7. How would you diagnose an electrical fault in a helicopter?

Diagnosing an electrical fault in a helicopter requires a systematic approach. I would first inspect the electrical wiring for any visible damage or loose connections. I would then use a multimeter to test the voltage and continuity of the electrical circuits. If the wiring and circuits appear to be intact, I would check the electrical components, such as the battery, alternator, and avionics, to ensure they are functioning properly.

8. What is the importance of proper rotor tracking and balancing?

Proper rotor tracking and balancing are crucial for safe and efficient helicopter flight. Rotor tracking ensures that the rotor blades are aligned correctly to minimize vibration and improve stability. Rotor balancing ensures that the rotor blades have the same weight distribution to prevent excessive vibrations. Improper rotor tracking or balancing can lead to reduced performance, increased wear and tear, and potential safety hazards.

9. How would you mitigate the effects of icing on a helicopter?

Mitigating the effects of icing on a helicopter is essential for safety. I would first equip the helicopter with an ice protection system, such as an anti-ice or de-ice system. These systems use heat or chemicals to prevent ice buildup on critical components. I would also regularly inspect the helicopter for ice accumulation during flight and take appropriate action, such as using the ice protection system or landing to remove the ice. Additionally, I would ensure that the helicopter is stored in a heated hangar to prevent icing when not in use.

10. What are the key safety precautions to observe when working with helicopters?

• Wear appropriate safety gear, including a helmet, gloves, and safety glasses.
• Keep a safe distance from moving rotors and other rotating components.
• Never approach a helicopter from behind.
• Be aware of overhead obstacles and power lines.
• Follow established safety protocols and procedures.
• Inspect the helicopter thoroughly before and after every flight.
• Report any safety concerns or equipment malfunctions immediately.

Utility Helicopter Repairers are responsible for maintaining and repairing utility helicopters. They work in a variety of settings, including military bases, civilian airports, and manufacturing facilities. Their duties include:

1. Inspecting helicopters for damage

Utility Helicopter Repairers must be able to identify any damage or defects in a helicopter. They use a variety of tools and techniques to do this, including visual inspections, borescope inspections, and ultrasonic testing.

• Inspecting the helicopter’s fuselage, wings, and tail for any cracks, dents, or other damage.
• Checking the helicopter’s engine, transmission, and other mechanical components for any signs of wear or tear.

2. Repairing helicopters

Utility Helicopter Repairers are responsible for repairing any damage to a helicopter. They use a variety of tools and techniques to do this, including welding, riveting, and replacing parts.

• Repairing any cracks or dents in the helicopter’s fuselage, wings, or tail.
• Replacing any worn or damaged engine, transmission, or other mechanical components.

3. Maintaining helicopters

Utility Helicopter Repairers are also responsible for maintaining helicopters. They perform a variety of tasks to keep the helicopter in good working order, including:

• Changing the helicopter’s oil and filters.
• Inspecting the helicopter’s tires and brakes.
• Lubricating the helicopter’s moving parts.

4. Troubleshooting helicopter problems

Utility Helicopter Repairers are responsible for troubleshooting any problems that occur with a helicopter. They use a variety of tools and techniques to do this, including electrical testing, diagnostic testing, and flight testing.

• Testing the helicopter’s electrical system to identify any problems.
• Performing diagnostic tests on the helicopter’s engine, transmission, and other mechanical components to identify any problems.

There are a few things you can do to prepare for your interview for a Utility Helicopter Repairer position:

1. Research the company and the position

Before you go to your interview, it is important to do your research on the company and the position you are applying for. This will help you to understand the company’s culture and values, as well as the specific requirements of the position.

• Visit the company’s website to learn more about their history, mission, and values.
• Read the job description carefully to make sure you understand the qualifications and responsibilities of the position.

2. Practice answering common interview questions

There are a few common interview questions that you are likely to be asked in an interview for a Utility Helicopter Repairer position. It is important to practice answering these questions so that you can give clear and concise answers.

• Tell me about your experience in helicopter repair.
• What are your strengths and weaknesses as a helicopter repairer?
• Why are you interested in this position?

3. Be prepared to talk about your experience

In your interview, you will be asked about your experience in helicopter repair. Be prepared to talk about your skills and experience in detail.

• Highlight your experience in inspecting, repairing, and maintaining helicopters.
• Describe your experience in troubleshooting helicopter problems.
• Explain your experience in working with other members of a helicopter repair team.

4. Be prepared to ask questions

At the end of your interview, you will be given the opportunity to ask questions. This is a good time to ask about the company, the position, and the work environment.

• Ask about the company’s safety record.
• Ask about the training and development opportunities available to employees.
• Ask about the company’s culture and values.