Does anyone know the pressurisation status of the electronics compartment where the battery is housed. I am slightly mystified as to how the chemicals were vented overboard in one instance and smelled in cockpit and passenger compartment in another
Well one was parked on the ground , and one was flying. In flight the air is extracted from the avionics bays and exits via the outflow valve. On the ground the air exits through openings under the fuselage.
Although there is positive airflow in flight from the cabin to the underfloor it is amazing how crew regularly smell things happening downstairs, even though the airflow is in the other direction.