Guidance
Procedures are in place to ensure airline personnel intercept any person identified as having no
need to be on board or near the aircraft.
In some environments, it would be prudent not to leave an in-service aircraft unattended.
Precautions may be taken to prevent unauthorized access to aircraft that are not in service and
are parked and unattended. For example, all external doors may be locked, all stairs and loading
bridges are removed (or locked) and any steps left near the aircraft are immobilized.
Passengers boarding or disembarking from flights using the apron are to be supervised when
passing from the terminal building to the aircraft. Such measures are applied whether the
passengers are walking or are being transported in vehicles.
Particular care is taken to ensure only crew members, authorized representatives and officials,
and bona fide passengers are permitted access to the aircraft.