How long can a pilot "piggyback" on a previous card's RA before needing to submit a new one?

• A. Until the next scheduled flight
• B. Until the aircraft departs
• C. Until the aircraft is powered down
• D. Until the end of the day

Answer: (C)

The correct answer indicates that a pilot can "piggyback" on a previous card's Risk Assessment (RA) until the aircraft is powered down. This means that as long as the aircraft remains operational and has not been shut down, the pilot can operate under the existing RA, assuming the conditions and risks have not changed significantly.

This practice allows for continuity in operations and safety protocols, enabling pilots to manage time effectively, especially in scenarios where flights are back-to-back. Once the aircraft is powered down, however, a new assessment is required to properly evaluate any changes in the flight environment or operational protocols before the aircraft is started again.

This rationale allows pilots to ensure they are always operating under the most relevant and accurate risk assessment, thereby promoting safety in aviation operations.