EASA SIB 2019-02: Explosive Door Openings on Parked Aeroplanes

What to do

Affected stakeholders should assess whether the risk of explosive door openings exists in their operations and implement procedures aligned with the aeroplane Type Certificate Holder's instructions. Training and awareness must be provided to all personnel handling the aeroplane, including aircrew, maintenance, and ground staff. Aerodrome operators should inform rescue and firefighting teams about this risk, and individuals accessing the aeroplane should consult the operator or maintenance organisation before opening doors on potentially pressurised aircraft. No specific compliance deadlines are stated.

Summary

EASA Safety Information Bulletin 2019-02 is a safety information bulletin addressing the risk of explosive door openings on parked aeroplanes due to excessive differential pressure between the cabin and the outside environment. This bulletin applies broadly to air operators, aerodrome operators, approved training organisations, maintenance organisations, and continuing airworthiness management organisations. It highlights the hazard during normal operations, maintenance, and training activities involving pressurised aeroplanes, without specifying particular aircraft or engine models.

What changed

EASA SIB 2019-02 introduces awareness and recommended procedures to mitigate the risk of explosive door openings caused by cabin pressure build-up when aeroplanes are parked and conditioned on the ground. It does not impose mandatory requirements but provides guidance on verifying outflow valve positions or keeping at least one cabin door open to prevent pressure build-up. The bulletin clarifies that no operational or safety directives are currently warranted based on this safety concern.

Why it matters

This bulletin is important for aviation professionals because explosive door openings can cause serious injuries or fatalities to personnel inside or outside the aeroplane. Operators, maintenance organisations, and training providers must understand and manage the risk to ensure safe ground operations and maintenance activities. Awareness and proper procedures help prevent hazardous pressure conditions that could lead to sudden door openings, enhancing safety for all involved.