Maintenance Manual XA41/XA42
AMM-XA42-0040-001 C.00
Page 10 Page date:
Chapter 12 25.09.2018
12-20-03 Engine Cleaning
Remove dirt and oil from the engine. This is necessary to decrease the temperature and to
prevent fire. But the applicable maintenance and service procedures are also necessary for a
clean engine. Make sure that there is a good airflow in the work area during the cleaning
procedure.
Make sure that the fire-fighting and safety equipment is available, refer to the Equipment list
of the Aircraft Flight Manual.
To clean the engine and engine compartment, refer to the manufacturer’s manuals.
To clean the engine:
1 Let the temperature of the engine decrease before you clean it.
2 Make sure that the electrical components, the air intakes and the cowling have
protection from cleaning agents.
Do not start the engine before you removed all cleaning agents.
Use only cleaning agents that are not flammable to prevent fire.
3 Start to clean the engine compartment from the top with a cleaning agent.
4 Flush the engine compartment with clean, warm water to fully remove all cleaning
agents.
12-30-00 UNSCHEDULED SERVICING
12-30-01 Removal of Snow and Ice
Remove snow and ice as immediately as possible. Melted water can freeze and can cause
damage.
Do not use sharp objects or de-icing fluids to remove snow or ice. This can cause damage to
the external surfaces and the structure.
Use soft brushes to remove the snow from the surfaces. If possible, put the aircraft in a
warm hangar to remove the ice.
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