During pre-flight checks, how should the DME Emergency Flashlight's light flash?

During pre-flight checks, how should the DME Emergency Flashlight's light flash?

• A. Every 10 seconds
• B. Every 5 seconds
• C. Every 15 seconds
• D. Only when activated

Answer: (A)

During preflight checks, the DME Emergency Flashlight should flash at a steady cadence of every 10 seconds. This regular blink confirms the battery is charged and the light is operable without excessive drain, and it allows you to verify functionality as part of the check. Flashing every 5 or 15 seconds would not align with standard test criteria, and flashing only when activated wouldn’t prove the light is working on its own. If it doesn’t flash at 10-second intervals, it’s considered non-operational and needs attention.

During preflight checks, the DME Emergency Flashlight should flash at a steady cadence of every 10 seconds. This regular blink confirms the battery is charged and the light is operable without excessive drain, and it allows you to verify functionality as part of the check. Flashing every 5 or 15 seconds would not align with standard test criteria, and flashing only when activated wouldn’t prove the light is working on its own. If it doesn’t flash at 10-second intervals, it’s considered non-operational and needs attention.