CS 25J1045 Cooling test procedures
ED Decision 2005/006/R
(a) Compliance
with CS 25J1041 must be
shown for the critical conditions that correspond to the applicable
performance requirements. The cooling tests must be conducted with the
aeroplane in the configuration, and operating under the conditions that are
critical relative to cooling. For the cooling tests, a temperature is
'stabilised' when its rate of change is less than 1°C per minute.
(b) Temperatures
must be stabilised prior to entry into each critical condition being
investigated, unless the entry condition normally is not one during which
component and APU fluid temperatures would stabilise (in which case, operation
through the full entry condition must be conducted before entry into the
critical condition being investigated in order to allow temperatures to reach
their natural levels at the time of entry).
(c) Cooling
tests for each critical condition must be continued until:
(1)
The component and APU fluid
temperatures stabilise;
(2)
The stage of flight is completed; or
(3)
An operating limitation is reached.
[Amdt 25/1]
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