Can the flight crew confirm that the flight carabiners are locked by physically squeezing them while the flyers are prone?

The assertion that the flight crew cannot confirm that the flight carabiners are locked by physically squeezing them while the flyers are prone is accurate because this practice raises significant safety concerns.

When the flyers are in a prone position, the crew's ability to safely and effectively assess the integrity and locking mechanism of the carabiners is compromised. Squeezing or handling the carabiners in this manner may not provide an accurate assessment of whether they are properly secured. Additionally, any unnecessary movement near the flyers' harnesses can pose a risk of injury or disrupt the proper setup of the equipment.

Safety protocols in activities such as Skycoasters emphasize the importance of ensuring all equipment is checked without risking the safety and comfort of the participants. Therefore, employing alternative methods to verify that the carabiners are locked—such as visual inspections or designated safety checks—would be the preferred approach.