1.4 Post-Incident Survival and Rescue Operations

1.4 Post-Incident Survival and Rescue Operations

The moments immediately following an aircraft crash or forced landing in a remote area are the most critical for survival. The flight crew must transition from clinical care providers to survival team members. Success in a survival situation requires understanding the physical priorities of life, mastering environmental protection, using signaling equipment effectively, and maintaining the psychological resolve to survive.

Immediate Post-Crash Actions

Directly after an impact, the immediate priority is safe egress and scene stabilization. The crew must:

1. Exit the Aircraft: Egress immediately once all motion has stopped. If a fire is present or fuel is leaking, assist the patient and other crew members out of the cabin if possible, prioritizing crew safety to prevent further casualties.
2. Move to a Safe Distance: Move at least 100 to 200 feet upwind from the wreckage. Aircraft fuel (Jet-A or aviation gasoline) is highly volatile, and post-crash fires can trigger explosions and release highly toxic carbon fiber composite dust and metal fumes.
3. Triage and First Aid: Assess all survivors for life-threatening injuries. Prioritize massive hemorrhage control using tourniquets and pressure dressings, followed by airway management and splinting.
4. Retrieve Emergency Gear: If safe to do so, retrieve the survival kit, flight helmets, medical bags, hand-held radios, and the ELT (if portable).

The Priorities of Survival: The Rule of 3s

In a survival scenario, decisions must be guided by the biological limits of the human body. This is summarized by the Rule of 3s:

• 3 minutes without oxygen or in the presence of lethal gas.
• 3 hours without shelter in extreme environmental conditions (severe cold, wet weather, or intense heat).
• 3 days without water before dehydration leads to organ failure.
• 3 weeks without food before starvation becomes fatal.

Understanding this hierarchy prevents survivors from misallocating limited physical energy. For example, searching for food during the first hours after a crash is a critical error; instead, energy must be focused on preventing hypothermia by constructing a shelter and building a fire.

Environmental Management and Shelter Construction

Exposure is the leading cause of death among crash survivors. Hypothermia can occur rapidly, even in moderate ambient temperatures (50°F to 60°F / 10°C to 15°C), if survivors are wet, in shock, or injured.

The first step in thermoregulation is insulating the body from the ground. The cold earth conducts heat away from the body much faster than air (conductive heat loss). Survivors should use aircraft seats, insulated medical blankets, or a thick bed of pine boughs to create a barrier between themselves and the ground.

A shelter should be constructed to protect against wind, rain, and snow. A simple lean-to shelter can be built using fallen branches, tree bark, and aircraft panels, with a space blanket lining the interior to reflect body heat. If stranded in deep snow, a snow cave can provide excellent insulation, keeping the interior temperature near 32°F (0°C) even when outside temperatures are far below zero.

Signaling and Search & Rescue (SAR)

Once shelter is secured, the crew must prepare to signal rescue forces. Modern Search and Rescue (SAR) is highly coordinated, but rescue teams must be directed to the exact crash location.

• Signal Mirror: The signal mirror is the most effective, reliable, and long-range daytime signaling device available. It requires no batteries and can project a flash of sunlight visible up to 30 to 40 miles away, even on slightly hazy days. The mirror is aimed by looking through the center hole, aligning the red indicator spot on the target (the search aircraft), and sweeping the flash across the cockpit.
• Flares and Strobe Lights: Pyrotechnics and battery-powered strobes are highly effective but have a limited lifespan. They must be conserved. Never fire a flare or turn on a strobe light randomly. Only activate these devices when an aircraft is actively heard or seen in the immediate vicinity.
• Fire and Smoke Signals: Preparing three fires in a triangle is the international symbol of distress. During the day, green vegetation, pine needles, or rubber should be added to the fire to create thick white or black smoke. At night, the fires should be kept bright and clear-burning.
• Ground-to-Air Visual Signals: Survivors should create large markings in open areas using rocks, branches, or contrasting gear. The markings must be at least 10 feet (3 meters) in length to be legible from high-altitude search planes. Standard international symbols include:

Survival Kits and Psychology

CAMTS mandates that all transport aircraft carry a survival kit tailored to the geographic region of operation. A standard kit must contain tools for shelter creation, fire starting, water purification, signaling, and basic medical care.

Ultimately, the most important survival tool is the psychological will to survive. Survivors often experience a sequence of emotional reactions: shock, denial, anger, and depression. Left unmanaged, panic can lead to poor decision-making and exhaustion. Flight paramedics should employ task-oriented behaviors—such as dividing labor, assigning shifts for fire watch, maintaining a log, and focusing on small, achievable daily goals—to keep the crew focused, maintain morale, and prevent panic.