Due to a mechanical or electrical fault, the normal procedures for engine stop might not be sufficient; it is therefore necessary to stop the engines with the EMERGENCY procedures.
The emergency stop causes heavy stress on the engines with consequent hazard of component damage. Use only in case of real need.
The engines emergency stop controls must be used only in case of real emergency.
Never use these controls during the normal engine stop procedure.
Before restarting the engines after an emergency stop, make sure to find and to clear the reason of the fault.