MRO

In fault diagnosis, which step is taken first when an issue arises?

• Repairing the equipment

• Detecting if there is a fault

• Replacing the system

• Scheduling maintenance

What is the main focus when performing fault diagnosis?

• Finding wear and tear

• Identifying the symptoms of a problem

• Checking operational hours

• Testing fluid levels

Which of these would NOT usually trigger a system fault?

• Routine inspection

• Component malfunction

• Disruption in supply

• External interference

A system acting in an unexpected way is experiencing what?

• A restart

• A breakdown

• A malfunction

• A modification

What does “model uncertainty” mean in diagnostics?

• Failure due to weather

• Engine not starting

• Limited understanding of the system behavior

• Fault in manual documentation

After detecting a fault, what’s the next logical step?

• Disconnect power

• Locate the faulty part

• Alert the crew

• Replace all fuses

Why are early failure detection (EFD) systems used in aviation?

• To avoid fuel waste

• To help with navigation

• To identify potential failures before they occur

• To notify about weather

Magnetic chips in jet engines are used to:

• Clean the oil

• Filter fuel

• Capture metal fragments for diagnosis

• Monitor hydraulic pressure

How do engineers recognize early signs of engine failure?

• Measuring tire pressure

• Counting flight hours

• Monitoring vibration sensors

• Checking seat sensors

What was a traditional method for diagnosing aircraft problems?

• Using smartphone apps

• Referring to printed technical manuals

• Connecting to cloud systems

• Accessing satellite data