Fueling

De Haviland Dash 8 Fueling Procedures

WARNINGS

• FUEL VAPORS ARE EXTREMELY EXPLOSIVE AND EVERY PRECAUTION MUST BE TAKEN TO PREVENT IGNITION. SAFETY PRECAUTIONS ARE PROVIDED TO PREVENT INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT, AND TO ALERT PERSONNEL TO THE HARMFUL EFFECTS OF FUEL COMING INTO CONTACT WITH EYES AND SKIN AND INHALATION OF FUEL VAPORS.

•PERSONNEL MUST TAKE EVERY PRECAUTION TO AVOID FUEL CONTACTING EYES AND SKIN, INHALATION OF FUEL VAPORS, AND ACCIDENTAL SWALLOWING OF FUEL. ANYONE EXPOSED TO THESE CONDITIONS MUST WASH CONTACTED AREAS THOROUGHLY WITH WATER AND SEEK PROMPT MEDICAL ATTENTION.

WARNINGS

Ensure that ground safeties and chocks are in position and that no smoking or naked flames are within 30 feet (10meters) of the aircraft. This includes the APU exhaust area if fueling is performed with the APU running.

In the even that fuel was to drip from the wing tip NACA vents ensure that there is no ground equipment operating under ,or near ,the NACA vents. Any equipment should be located a minimum of 20 ft. from the NACA VENTS.

In the event of fuel spillage or fire Refueling can be terminated by releasing the DEADMAN control and by shutting down the refueling facility and all electrical power.

Fuel Truck Zone

A Refuel / Defuel station, situated in the rear of the right nacelle, consist of a standard fuel coupling, a master Refuel / Defuel switch, a pre-check test switch, quantity gauges for each tank and control lights to show functions in progress. Quantity gauges have rim pointers (bugs) to pre-select quantity for each tank.

Preparation for Refueling

• Obtain the fuel requirements

•Ensure that the aircraft battery is selected on ,or use the override switch located on the fueling panel, if the aircraft has this mod incorporated. Without this mod fueling on battery power could cause the Main Battery to deplete below acceptable (22volts) limit.

PRESSURE REFUELING• Bond the refueling vehicle or cabinet to the aircraft bonding point.

• Vehicle should be positioned so that it has an escape route and precautions should be made to ensure that the vehicle cannot move.(parking brake applied and chocks)

•Open the refueling panel.

CAUTION: Stand clear of the panel when opening since moisture, fuel seeps and de-ice fluids may have accumulated behind the panel and could drip on you.

•Remove the cap from the aircraft coupling and connect the refueling hose.

•Turn Master Re-fuel / De-fuel switch to the RE-FUEL selection and observe that the GREEN Power Light illuminates. Also the MASTER VALVE CLOSED LIGHTS should extinguish.

NOTE: Gauges will show the last fuel load with the Master Refuel / Defuel switch in the OFF selection.

PRESSURE REFUELING• Adjust the gauge rim pointers (Bugs) to the fuel quantify required in each tank.

CAUTION: Fuel pressure from the refueling source must not exceed 50 psi or 345 Kp.

WARNING: FUEL FLOW MUST BE CONTROLLED AT ALL TIMES BY THE DEADMAN CONTROL DURING UNDER WING PRESSURE REFUELING

• Observe that the DUMP Valve lights and Refuel / Defuel shut off valves illuminate.

• Select PRE-TEST SWITCH during refueling and observe that the fuel flow stops.

NOTE: This is a test of the back up system should fuel fuel not terminate when the fuel quantity needles match the bug selections. Should this test fail contact your maintenance personnel and discontinue fueling until the fault has been rectified.

PRESSURE REFUELING• Start refueling by operating the DEADMAN control. Fuel flow should stop automatically when the fuel quantify needles meet the bug selection.

•When fueling is complete, select Refuel / Defuel to “OFF” then uncouple the hose once the pressure in the refueling hose has been vacated.

NOTE: Fuel cannot be transferred when the Refuel / Defuel switch is not in the OFF selection.

•Replace the adapter cap.

•Close and secure the refuel panel door.

•Disconnect the refueling vehicle bonding clip from the aircraft bonding point.

NOTE: Since the Refueling station quantity gauges are repeaters of the flight deck gauges ,refueling can be stopped from the flight deck, by pressing the quantity gauge test switch which will also cause the outside gauge pointers to meet the bug selection.

Set Bugs

Bugs Set

Power On Fueling Starts

Pre-check Test

Fueling Stops

PRESSURE REFUELING• If there is any doubt about the actual fuel load on the aircraft, cross check using the magnetic stick indicators.Procedures may be found in the aircraft MEL 28-22-1

MAGNETIC FUEL LEVEL INDICATORS•Using a screw driver, press the probe in and turn through 90 degrees.

•Fully withdraw probe until it comes to it’s final stop then pull it slightly beyond that point.

•Using the palm of your hand slowly push in the probe until the magnetic force pulls it away from your hand.

•NOTE: The probe will stop when a magnetic link between the end of the probe and the floating ring is established.

•Take a reading of the probe at the aircraft skin in either liters or U.S.gallons to calculate fuel quantity using the charts found in the MEL.

•Restore the probe in it’s reset position and secure it by turning it through 90 degrees.

NOTE: This procedure must be done under direct supervision of qualified air Canada Jazz personnel.

OVERWING REFUELINGIn the event that there are no pressure refueling facilities available, or that fuel cannot enter the wing tanks by using the pressure refueling system( dump valves fail to open), OVERWING refueling can be accomplished using the following procedures.

• Bond the refueling vehicle or cabinet to the aircraft bonding point.

•Bond the refueling nozzle clip to the aircraft bonding point.

•Remove the fuel tank cap by raising the the handle in the middle of the cap and turning it anti-clockwise to “OPEN”

•Insert nozzle and fill to the desired quantity.

• Tanks are filled to maximum capacity when the fuel level reaches the bottom of the filler port skirt. No additional fuel must be added above this level.

•Remove the nozzle and the bonding clip.

OVERWING REFUELING

• Replace the refuel cap with the arrow pointing forward.

• Rotate the cap handle to register with the “CLOSED” position.

• Lock the filler cap by pushing the handle down to lie flat in it’s access.

• Ensure that the fuel load is correct.

• Disconnect the bonding cable from the refueling vehicle.

End of the De Haviland Dash 8 Fueling Procedures

Presentation