EASA 2024-0072

Requires replacement of certain lithium-polymer internal and external batteries of CMA-1310 electronic display units (EDU). Prompted by findings of swelling of the lithium-polymer internal and external batteries of these EDUs. The swelling occurs due to a high inrush charge and discharge current stress condition applied on a deeply discharged lithium-polymer battery. If not corrected, this condition could lead to the thermal runaway of a battery, possibly resulting in in the release of heat, smoke, fire, and explosion in the cockpit.