Fueling

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Fueling

  1. 1. De Haviland Dash8 Fueling
  2. 2. WARNINGS• FUEL VAPORS ARE EXTREMELY EXPLOSIVE AND EVERYPRECAUTION MUST BE TAKEN TO PREVENT IGNITION.SAFETY PRECAUTIONS ARE PROVIDED TO PREVENTINJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT,AND TO ALERT PERSONNEL TO THE HARMFUL EFFECTSOF FUEL COMING INTO CONTACT WITH EYES AND SKINAND INHALATION OF FUEL VAPORS.•PERSONNEL MUST TAKE EVERY PRECAUTION TO AVOIDFUEL CONTACTING EYES AND SKIN, INHALATION OF FUELVAPORS, AND ACCIDENTAL SWALLOWING OF FUEL.ANYONE EXPOSED TO THESE CONDITIONS MUST WASHCONTACTED AREAS THOROUGHLY WITH WATER ANDSEEK PROMPT MEDICAL ATTENTION.
  3. 3. WARNINGSEnsure that ground safeties and chocks are in position andthat no smoking or naked flames are within 30 feet(10meters) of the aircraft. This includes the APU exhaustarea if fueling is performed with the APU running.In the even that fuel was to drip from the wing tip NACAvents ensure that there is no ground equipment operatingunder ,or near ,the NACA vents. Any equipment should belocated a minimum of 20 ft. from the NACA VENTS.In the event of fuel spillage or fire Refueling can beterminated by releasing the DEADMAN control and byshutting down the refueling facility and all electrical power.
  4. 4. Fuel Truck Zone
  5. 5. A Refuel / Defuelstation, situated inthe rear of the rightnacelle, consist of astandard fuelcoupling, a masterRefuel / Defuelswitch, a pre-checktest switch, quantitygauges for each tankand control lights toshow functions inprogress. Quantitygauges have rimpointers (bugs) topre-select quantityfor each tank.
  6. 6. Preparation for Refueling• Obtain the fuel requirements•Ensure that the aircraft battery is selected on ,or usethe override switch located on the fueling panel, if theaircraft has this mod incorporated. Without this modfueling on battery power could cause the Main Battery todeplete below acceptable (22volts) limit.
  7. 7. PRESSURE REFUELING• Bond the refueling vehicle or cabinet to the aircraft bondingpoint.• Vehicle should be positioned so that it has an escape routeand precautions should be made to ensure that the vehiclecannot move.(parking brake applied and chocks)•Open the refueling panel.CAUTION: Stand clear of the panel when opening sincemoisture, fuel seeps and de-ice fluids may have accumulatedbehind the panel and could drip on you.•Remove the cap from the aircraft coupling and connect therefueling hose.•Turn Master Re-fuel / De-fuel switch to the RE-FUEL selectionand observe that the GREEN Power Light illuminates. Also theMASTER VALVE CLOSED LIGHTS should extinguish.NOTE: Gauges will show the last fuel load with the MasterRefuel / Defuel switch in the OFF selection.
  8. 8. PRESSURE REFUELING• Adjust the gauge rim pointers (Bugs) to the fuel quantifyrequired in each tank.CAUTION: Fuel pressure from the refueling source must notexceed 50 psi or 345 Kp.WARNING: FUEL FLOW MUST BE CONTROLLED AT ALL TIMESBY THE DEADMAN CONTROL DURING UNDER WINGPRESSURE REFUELING• Observe that the DUMP Valve lights and Refuel / Defuel shutoff valves illuminate.• Select PRE-TEST SWITCH during refueling and observe thatthe fuel flow stops.NOTE: This is a test of the back up system should fuel fuel notterminate when the fuel quantity needles match the bugselections. Should this test fail contact your maintenancepersonnel and discontinue fueling until the fault has beenrectified.
  9. 9. PRESSURE REFUELING• Start refueling by operating the DEADMAN control. Fuel flowshould stop automatically when the fuel quantify needlesmeet the bug selection.•When fueling is complete, select Refuel / Defuel to “OFF” thenuncouple the hose once the pressure in the refueling hose hasbeen vacated.NOTE: Fuel cannot be transferred when the Refuel / Defuelswitch is not in the OFF selection.•Replace the adapter cap.•Close and secure the refuel panel door.•Disconnect the refueling vehicle bonding clip from theaircraft bonding point.NOTE: Since the Refueling station quantity gauges arerepeaters of the flight deck gauges ,refueling can be stoppedfrom the flight deck, by pressing the quantity gauge testswitch which will also cause the outside gauge pointers to
  10. 10. Set Bugs
  11. 11. Bugs Set
  12. 12. Power On Fueling Starts
  13. 13. Pre-check Test
  14. 14. Fueling Stops
  15. 15. PRESSURE REFUELING• If there is any doubt about the actual fuel load on theaircraft, cross check using the magnetic stickindicators.Procedures may be found in the aircraft MEL28-22-1
  16. 16. MAGNETIC FUEL LEVEL INDICATORS•Using a screw driver, press the probe in and turn through 90degrees.•Fully withdraw probe until it comes to it’s final stop then pull itslightly beyond that point.•Using the palm of your hand slowly push in the probe until themagnetic force pulls it away from your hand.•NOTE: The probe will stop when a magnetic link between theend of the probe and the floating ring is established.•Take a reading of the probe at the aircraft skin in either litersor U.S.gallons to calculate fuel quantity using the charts foundin the MEL.•Restore the probe in it’s reset position and secure it by turningit through 90 degrees.NOTE: This procedure must be done under direct supervision ofqualified air Canada Jazz personnel.
  17. 17. OVERWING REFUELINGIn the event that there are no pressure refueling facilitiesavailable, or that fuel cannot enter the wing tanks by usingthe pressure refueling system( dump valves fail to open),OVERWING refueling can be accomplished using the followingprocedures.• Bond the refueling vehicle or cabinet to the aircraft bondingpoint.•Bond the refueling nozzle clip to the aircraft bonding point.•Remove the fuel tank cap by raising the the handle in themiddle 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 levelreaches the bottom of the filler port skirt. No additional fuelmust be added above this level.•Remove the nozzle and the bonding clip.
  18. 18. 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 flatin it’s access.• Ensure that the fuel load is correct.• Disconnect the bonding cable from the refueling vehicle.
  19. 19. End of the De HavilandDash 8 Fueling Procedures Presentation

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