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Pilot’s Operating Manual
Revision A2: Nov, 2004
Sub-section 2
GROUND SERVICING
Hawker 800XP Pro Line 21
Section VI - GROUND OPERATIONS
INTRODUCTION
This Sub-section contains information for the ground servicing of the Hawker 800XP Pro Line 21
airplane. The procedures are provided for pilots who may be subjected to completing their own ground
servicing.
ENGINE GROUND RUNNING
ENGINE START
Ground running at power settings above idle, for other than brief periods, can cause the local air
temperatures to exceed limits in the following areas:
1. Engine Bays - Ignition exciters and fuel pump.
2. Rear Equipment Bay - Main engine fire bottles.
Therefore, when ground running an engine for longer than a brief period, open the engine cowling doors
and the rear equipment bay door.
NOTE: Engine anti-icing must not be used if the ambient air temperature is above +10° C. For engine
running limitations, refer to the Airplane Maintenance Manual.
1. Position the airplane (preferably headed into wind and standing on concrete which is free from
cracks, joints, debris, dust, and spilt fuel and/or oil), so that all buildings, etc. will be clear of the
Engine Danger Zones (Figure 1).
2. Center the nose gear and chock all wheels.
3. Remove all covers and blanks and make sure the engine intakes and exhausts are free from foreign
matter.
4. Observe normal fire precautions.
5. Connect the appropriate external electrical power supply suitable for starting engines (if available)
or use the airplane APU (if installed).
If no external power supply is available, use the APU (if installed) to support airplane services and
the internal batteries to start the engines.
NOTE: For APU operation, refer to the AFM Section 7 - SUPPLEMENTS.
6. Make sure serviceable batteries are installed in the airplane.
7. Check the danger zones are clear of all equipment and personnel (Figure 1).
8. Start the engines and do not deliberately exceed the operating limitations. If the operating limitations
are accidentally exceeded, the conditions must be recorded in the engine log book quoting the
nature and degree of excess.
The following must be adhered to during engine ground running:
CAUTION:
DO NOT DEPLOY THRUST REVERSERS WITH THE COWLING DOORS OPEN, OR
WHEN RUNNING ENGINES AT POWER SETTINGS ABOVE IDLE. IF THE THRUST
REVERSERS ARE DEPLOYED IN EITHER CIRCUMSTANCE, DAMAGE MAY OCCUR.