4.1.1 Public spaces and crew accommodation shall
be designed and arranged so as to protect the occupants from unfavourable
environmental conditions and to minimize the risk of injury to occupants
during normal and emergency conditions.
4.1.2 Spaces accessible to passengers shall not
contain controls, electrical equipment, high-temperature parts and
pipelines, rotating assemblies or other items, from which injury to
passengers could result, unless such items are adequately shielded,
isolated, or otherwise protected.
4.1.3 Public spaces shall not contain operating
controls unless the operating controls are so protected and located
that their operation by a crew member shall not be impeded by passengers
during normal and emergency conditions.
4.1.4 Windows in passenger and crew accommodation
shall be of adequate strength and suitable for the worst intended
conditions specified in the Permit to Operate and be made of material
which will not break into dangerous fragments if fractured.
4.1.5 The public spaces, crew accommodation and
the equipment therein shall be designed so that each person making
proper use of these facilities will not suffer injury during the craft's
normal and emergency start, stop and manoeuvring in normal cruise
and in failure or maloperation conditions.