In the Ondeck procedure, which action is performed first?

In the Ondeck procedure, which action is performed first?

• A. EFSLs OFF
• B. EMERGENCY ELECTRICAL CUTOFF
• C. ROTOR BRAKE
• D. EVACUATE

Answer: (A)

The sequence focuses on minimizing the most immediate hazard first: fuel. In the Ondeck procedure, shutting off the fuel supply to the engines takes priority because fuel on deck or near hot components can quickly become a fire hazard if anything goes wrong during securing and movement of the helicopter. Turning the EFSLs off stops fuel flow to both engines, reducing the risk of a post-shutdown fuel leak or ignition as other safety steps are completed. After the fuel is secured, cutting electrical power comes next to reduce potential ignition sources and electrical fire risk while the aircraft is being secured. With fuel shut off and power isolated, you then apply the rotor brake to prevent the rotor from moving in wind or gusts, stabilizing the aircraft on deck. Evacuation is the final step, performed once the helicopter is secured and hazards have been mitigated. So the first action is EFSLs OFF because stopping fuel flow is the primary step that lowers the immediate danger, and all subsequent steps build on that safety measure.

The sequence focuses on minimizing the most immediate hazard first: fuel. In the Ondeck procedure, shutting off the fuel supply to the engines takes priority because fuel on deck or near hot components can quickly become a fire hazard if anything goes wrong during securing and movement of the helicopter. Turning the EFSLs off stops fuel flow to both engines, reducing the risk of a post-shutdown fuel leak or ignition as other safety steps are completed.

After the fuel is secured, cutting electrical power comes next to reduce potential ignition sources and electrical fire risk while the aircraft is being secured. With fuel shut off and power isolated, you then apply the rotor brake to prevent the rotor from moving in wind or gusts, stabilizing the aircraft on deck. Evacuation is the final step, performed once the helicopter is secured and hazards have been mitigated.

So the first action is EFSLs OFF because stopping fuel flow is the primary step that lowers the immediate danger, and all subsequent steps build on that safety measure.