What is the primary purpose of reading fault codes from the fault memory or maintenance computer?

• A. It automatically fixes faults
• B. It schedules pilot break times
• C. Read fault memory/maintenance computer to isolate faults and plan repairs
• D. It updates cockpit data with fuel information

Answer: (C)

Reading fault codes from the fault memory or maintenance computer gives a diagnostic map of what the system detected as out of spec. Each code ties to a specific fault condition in a subsystem or sensor, so pulling these codes helps you pinpoint where the problem likely lies. That makes it possible to isolate the faulty component or circuit, rather than guessing or swapping parts randomly. The real value is that this information guides the troubleshooting flow: you can plan the exact checks to perform, determine which parts to order, and schedule the necessary repairs. After repairs, you can clear the codes and retest to confirm the issue is resolved. It’s all about-efficient diagnosis and repair planning, not automatic fixes or unrelated tasks like updating fuel data or scheduling breaks.