9.2.1 The engines shall be fitted with adequate
safety monitoring and control devices in respect of speed, temperature,
pressure and other operational functions. Control of the machinery
shall be from the craft's operating compartment. Category B craft
and cargo craft shall be provided with additional machinery controls
in or close to the machinery space. The machinery installation shall
be suitable for operation as in an unmanned machinery space,footnote including automatic fire detection system, bilge
alarm system, remote machinery instrumentation and alarm system. Where
the space is continuously manned, this requirement may be varied in
accordance with the requirements of the Administration.
9.2.2 The engines shall be protected against overspeed,
loss of lubricating oil pressure, loss of cooling medium, high temperature,
malfunction of moving parts and overload. Safety devices shall not
cause complete engine shutdown without prior warning, except in cases
where there is a risk of complete breakdown or explosion. Such safety
devices shall be capable of being tested.
9.2.3 At least two independent means of stopping
the engines quickly from the operating compartment under any operating
conditions shall be available. Duplication of the actuator fitted
to the engine shall not be required.
9.2.4 The major components of the engine shall
have adequate strength to withstand the thermal and dynamic conditions
of normal operation. The engine shall not be damaged by a limited
operation at a speed or at temperatures exceeding the normal values
but within the range of the protective devices.
9.2.5 The design of the engine shall be such as
to minimise the risk of fire or explosion and to enable compliance
with the fire precaution requirements of chapter
7.
9.2.6 Provision shall be made to drain all excess
fuel and oil to a safe position so as to avoid a fire hazard.
9.2.7 Provision shall be made to ensure that,
whenever practical, the failure of systems driven by the engine shall
not unduly affect the integrity of the major components.
9.2.8 The ventilation arrangements in the machinery
spaces shall be adequate under all envisaged operating conditions.
Where appropriate, arrangements shall ensure that enclosed engine
compartments are forcibly ventilated to the atmosphere before the
engine can be started.
9.2.9 Any engines shall be so installed as to
avoid excessive vibration within the craft.