Air-Bag Operations – Part 4: Size-up & Initial Operations

Proper size-up is critically important for a successful operation involving an air-bag lift. Jon Hall shares these initial actions will help prevent further injury to the victim and will make for a safer and more efficient operation.


It is critical to perform a thorough size-up when responding to an incident where air bags are going to be deployed. Potential hazards to members must be recognized and mitigated as soon as possible. Frequently, there are concerns about loads shifting, which can cause further injury to victims or rescuers. In industrial settings, other hazards may involve energized equipment or manufacturing processes that are still running. All members must perform continuous size-ups throughout the operation and act accordingly to ensure the safety of all involved.

 

Dispatch & Response

The process of response size-up should begin upon receipt of the alarm. Members should listen to the vital dispatch information to try and ascertain the type of incident, the mechanism of injury, the number of victims and other influencing factors. It is essential to start thinking about safely accessing the scene and the possible methods to remove the victim. It is valuable to have several feasible “game plans” in mind while responding, so that one can quickly be implemented upon arrival at the scene.

Air-bag incidents are often remote from the street, which makes it imperative to determine what resources may be needed and to bring in the necessary equipment right away. One of the worst things that can happen is to be unable to complete the removal process because essential equipment was inadvertently left on the apparatus. Members should confirm they are bringing air bags of various sizes, the air-bag system components, and cribbing (see Photo 1). Proper response includes ensuring members are getting off the rig with the appropriate equipment before they attempt to access the incident.

 

Scene Safety

The first concern for responding companies is determining whether the scene is safe. Members must evaluate the dangers that are present and promptly remove/reduce them before the extrication process begins. This type of scene is like any other rescue scene in which members must wear the appropriate personal protective equipment (PPE) including items for blood borne pathogen protection.

After the PPE needs are met, members should determine whether it is safe to enter the environment where the victim is trapped and approach the victim. Members must be sure the risk of fire, electrical hazards and other threatening conditions are removed or significantly reduced. If the incident involves machinery, this may mean securing the power to the machine itself. Before shutting off power to any machinery, talk to someone with knowledge of the machine for advisement on whether it might cause more harm than good.

 

Cribbing & Stabilization

Members must safeguard the loads from shifting and potentially causing further injury to the victim. This involves using wheel chocks, step chocks and cribbing to stabilize the load and prevent vertical or horizontal movement – see article three in the series for more information. With incidents involving vehicles, members should chock the wheels and quickly minimize further movement using step chocks. After initial stabilization is achieved, members should consider what vital components or actions are required to stabilize the load during the lift. In most situations, a box crib will be utilized to achieve proper stabilization during the lift (see Photo 2). Members should try to place cribbing where it will not block the positioning of the air bags needed to perform the lift.

Several safety concerns must be kept in mind when building box cribbing. It is of primary importance that the bottom layer of the crib stack be solid in order to help spread the weight and keep the whole system solid (see Photo 3). This is especially true when the system is being constructed on soil, asphalt or other soft surfaces.

Members should take great caution when placing timbers to ensure their hand does not get caught between the load and the timber. Members should grasp the side of the timber or use another piece to push the timber into position (see Photo 4). This protects the member’s hand in case the load shifts and drops.

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