What is the correct action to take when the escape slide is inflated?

When the escape slide is inflated, the appropriate action to take is to ensure that the slide is functioning properly and doing its job effectively. This is crucial for passenger safety during an emergency evacuation.

Pulling the manual inflation handle is necessary to confirm that the slide is properly inflated and functional. This step is essential because it acts as a verification method; if the automatic inflation were to malfunction, manually engaging the inflation mechanism helps ensure the slide is fully operational, providing a secure means for passengers to evacuate the aircraft quickly and safely.

The other options do not address the immediate need to verify the slide's inflation status effectively. Leaving it as is could be acceptable if it is already fully inflated. However, without checking its inflation state, one cannot be assured it is entirely safe and ready for use. Checking for leaks, while important, is a secondary action that should follow ensuring the slide is inflated properly. Re-inflating immediately without confirming the current state of inflation could be unnecessary if the slide is already functional, leading to potential delays in evacuation.