in Aerospace / Security

AvSax's fire safety device deployed on Babcock's air ambulance helicopters

Posted 11 January 2022 · Add Comment

AvSax's award-winning lithium battery fire containment bags are now on board Babcock's air ambulance helicopters, protecting its 20-strong UK frontline fleet.

Above: An AvSax lithium battery fire containment bag ready for deployment.
Courtesy AvSax

Many air ambulance helicopters in the UK are now carrying this specialist piece of equipment to help keep the crew, patients and aircraft safe in the event of a fire or even an explosion.
More than 20 helicopters are operated by specialist aerial emergency medical services (EMS) company Babcock and following a detailed look into the possible risks posed by lithium-ion batteries on aircraft, Babcock now carries specialist AvSax battery fire containment bags on board their UK air ambulance fleet.
This means that in the very rare situation of a battery malfunction - a process known as thermal runaway - the crew can seal the battery inside one of the specialist bags, ensuring that it stays safe, even if it’s at risk of bursting into flames.
Thermal runaway happens when one cell in a battery overheats it can produce enough heat – up to 900°C (1652°F) – to cause adjacent cells to overheat. This can cause a lithium battery fire to flare repeatedly and they are very difficult to put out which is why AvSax battery fire containment bags are needed.

AvSax won the prestigious Queen’s Award for Enterprise in the UK in 2018.

A Babcock spokesman said: “Our air ambulance helicopters carry a number of battery-operated medical and aviation devices. On rare occasions lithium-ion batteries can malfunction, leading to thermal runaway and possibly even igniting.
“But our aircraft carry specialist AvSax battery fire containment bags which can cool down an overheating device and are strong enough to withstand a blast should they explode.”
AvSax spokesman Richard Nikolic said: “The AvSax have proved themselves on fixed wing aircraft across the world and every time they have been deployed to deal with an overheating personal electronic device the planes have been able to continue their journeys rather than having to divert and make emergency landings.

“The same potential dangers exist on helicopters and the space on board is even more confined which is why AvSax have become such an important piece of risk management kit for them.”

AvSax are now on more than 15,373 aircraft operated by 80 airline companies. They have been used 33 times to deal with emergencies in flight since the start of 2017. They are designed to cool down the overheating device and are strong enough to withstand a blast should they explode.

Babcock - an international aerospace, defence and security company -  operates emergency medical aircraft which act as mobile intensive care units with a reaction and mobility capacity that enables them to reach inaccessible locations and carry out complex rescues in record time.

Its EMS operations work with more than 1,000 specialist medical professionals spanning the UK, Australia, Canada, Finland, France, Italy, Norway, Portugal, Spain and Sweden. Along with the flight crew, Babcock’s medical staff play a crucial role in patient safety. They are able to give initial care at the scene of the accident, provide in-flight medical care and brief doctors who will provide ongoing treatment once the patient has been transported to hospital.

Babcock has 140 EMS bases worldwide and carries out 82,000 missions every year, transporting around 65,000 patients.

In the UK they operate from East Anglia to Wales and from Scotland to Northern Ireland.


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