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ICAO Madrid May 2002 - Morris_2 - Non-Revenue Flying

K
Kevin Morris

The document discusses non-revenue flights conducted by airlines, including post-maintenance flights for engine testing, positioning flights, and test flights. It describes how some non-revenue flying is necessary but expensive and creates unwanted emissions. The document provides examples of ways to reduce non-revenue flying, such as reducing engine ground running times, using lower power settings, combining test flights, and utilizing commercial flights for verifying maintenance when possible.

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Airline Planning Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Non-Revenue Flying Kevin M Morris Manager Environment, British Airways
Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying What is Non-Revenue Flying? Post Maintenance Engine testing Diversion/Positioning flights Test Flights Epilogue: Tales of the unexpected
Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying Any flight that doesnt make money! Includes flights for: Training, Ferry, verification, positioning, testing, development, + Ground Engine running(?)
Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying Some Non-Revenue flying is necessary, but it is expensive, uses fuel and creates unwanted emissions Can sometimes be reduced or managed or coupled with commercial service
Airline Planning Panel - Madrid 21-22 May 2002 Post Maintenance
Airline Planning Panel - Madrid 21-22 May 2002 Verification of Maintenance Result of some maintenance actions can not be accurately verified on the ground e.g. Engine re-light envelope Manual reversion Some emergency systems, etc. Some flying may be necessary
Airline Planning Panel - Madrid 21-22 May 2002 B 737 Manual Reversion Check is required if control rods, system linkages are disturbed Check at FL350, switch off both control systems, manual trim out Recording of results allowed a check at 10 000 ft instead Resulting in approx. 1 hour reduction in flight time, and savings in fuel and emissions
Airline Planning Panel - Madrid 21-22 May 2002 Engine Ground Running
Airline Planning Panel - Madrid 21-22 May 2002 Engine Ground Running Post maintenance action, e.g. Check starts Thrust reverser verification Leak tests Reduce time of running Reduce power setting To the minimum required
Airline Planning Panel - Madrid 21-22 May 2002 Concorde Ground Runs Following temporary suspension of C of A, Concorde engines run on a daily basis. Runs of 1 hour duration 10 min at full reheat power Rest at high power Problems with noise, fuel use
Airline Planning Panel - Madrid 21-22 May 2002 Concorde Ground Runs Reappraise requirements Long term, not short term Reheat not necessary Push to high power, then reduce to a lower power Running time reduced Approx. 80% reduction in fuel
Airline Planning Panel - Madrid 21-22 May 2002 Diversions and Positioning
Airline Planning Panel - Madrid 21-22 May 2002 Positioning Flights Diversions are BAD NEWS! Choice of alternate is important: Too close - both can have similar weather Too far - high cost in time and fuel for diversion and recovery Choose wisely!
Airline Planning Panel - Madrid 21-22 May 2002 Positioning Flights Split operations, sometimes require positioning of aircraft Positioning also required if Maintenance is carried out away from main base Sometimes a commercial load can be carried (e.g. B777 delivery flight with cherries)
Airline Planning Panel - Madrid 21-22 May 2002 Development, TI and Test
Airline Planning Panel - Madrid 21-22 May 2002 Test Flying Some test flying is necessary Required by Manufacturer (MM) Required by the Regulator Required by the airline Sometimes possible to combine test flights e.g. Concorde noise with AWFT
Airline Planning Panel - Madrid 21-22 May 2002 Test Flying - costs Typical AWFT flight fuels: ATP - 2 000 kg B737/A320 - 6 000 kg B757 - 12 000 kg B767 - 12 000 kg B777 - 13 000 kg B747 - 30 000 kg Concorde - 78 000 kg Other type probably less!
Airline Planning Panel - Madrid 21-22 May 2002 Test Flights - Minimisation B.I.T.E. Do everything thats possible on the ground Record everything, and review Test during revenue flying (if possible!) Construct logical test schedules
Airline Planning Panel - Madrid 21-22 May 2002 B 737 Alternate Flap Problem found with Boeing 737 alternate flap, during AWFT Problem resolved, but UK CAA required verification flights Agreed for Management Pilots to use alternate system to lower flaps on commercial flights into LHR
Airline Planning Panel - Madrid 21-22 May 2002 Test Flying It is not always possible to recreate flight and pressurisation loads on the ground. For this reason, Some defects can only be demonstrated....
Airline Planning Panel - Madrid 21-22 May 2002 ....in the air!
Airline Planning Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Thank you !

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ICAO Madrid May 2002 - Morris_2 - Non-Revenue Flying

  • 1. Airline Planning Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Non-Revenue Flying Kevin M Morris Manager Environment, British Airways
  • 2. Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying What is Non-Revenue Flying? Post Maintenance Engine testing Diversion/Positioning flights Test Flights Epilogue: Tales of the unexpected
  • 3. Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying Any flight that doesnt make money! Includes flights for: Training, Ferry, verification, positioning, testing, development, + Ground Engine running(?)
  • 4. Airline Planning Panel - Madrid 21-22 May 2002 Non-Revenue Flying Some Non-Revenue flying is necessary, but it is expensive, uses fuel and creates unwanted emissions Can sometimes be reduced or managed or coupled with commercial service
  • 5. Airline Planning Panel - Madrid 21-22 May 2002 Post Maintenance
  • 6. Airline Planning Panel - Madrid 21-22 May 2002 Verification of Maintenance Result of some maintenance actions can not be accurately verified on the ground e.g. Engine re-light envelope Manual reversion Some emergency systems, etc. Some flying may be necessary
  • 7. Airline Planning Panel - Madrid 21-22 May 2002 B 737 Manual Reversion Check is required if control rods, system linkages are disturbed Check at FL350, switch off both control systems, manual trim out Recording of results allowed a check at 10 000 ft instead Resulting in approx. 1 hour reduction in flight time, and savings in fuel and emissions
  • 8. Airline Planning Panel - Madrid 21-22 May 2002 Engine Ground Running
  • 9. Airline Planning Panel - Madrid 21-22 May 2002 Engine Ground Running Post maintenance action, e.g. Check starts Thrust reverser verification Leak tests Reduce time of running Reduce power setting To the minimum required
  • 10. Airline Planning Panel - Madrid 21-22 May 2002 Concorde Ground Runs Following temporary suspension of C of A, Concorde engines run on a daily basis. Runs of 1 hour duration 10 min at full reheat power Rest at high power Problems with noise, fuel use
  • 11. Airline Planning Panel - Madrid 21-22 May 2002 Concorde Ground Runs Reappraise requirements Long term, not short term Reheat not necessary Push to high power, then reduce to a lower power Running time reduced Approx. 80% reduction in fuel
  • 12. Airline Planning Panel - Madrid 21-22 May 2002 Diversions and Positioning
  • 13. Airline Planning Panel - Madrid 21-22 May 2002 Positioning Flights Diversions are BAD NEWS! Choice of alternate is important: Too close - both can have similar weather Too far - high cost in time and fuel for diversion and recovery Choose wisely!
  • 14. Airline Planning Panel - Madrid 21-22 May 2002 Positioning Flights Split operations, sometimes require positioning of aircraft Positioning also required if Maintenance is carried out away from main base Sometimes a commercial load can be carried (e.g. B777 delivery flight with cherries)
  • 15. Airline Planning Panel - Madrid 21-22 May 2002 Development, TI and Test
  • 16. Airline Planning Panel - Madrid 21-22 May 2002 Test Flying Some test flying is necessary Required by Manufacturer (MM) Required by the Regulator Required by the airline Sometimes possible to combine test flights e.g. Concorde noise with AWFT
  • 17. Airline Planning Panel - Madrid 21-22 May 2002 Test Flying - costs Typical AWFT flight fuels: ATP - 2 000 kg B737/A320 - 6 000 kg B757 - 12 000 kg B767 - 12 000 kg B777 - 13 000 kg B747 - 30 000 kg Concorde - 78 000 kg Other type probably less!
  • 18. Airline Planning Panel - Madrid 21-22 May 2002 Test Flights - Minimisation B.I.T.E. Do everything thats possible on the ground Record everything, and review Test during revenue flying (if possible!) Construct logical test schedules
  • 19. Airline Planning Panel - Madrid 21-22 May 2002 B 737 Alternate Flap Problem found with Boeing 737 alternate flap, during AWFT Problem resolved, but UK CAA required verification flights Agreed for Management Pilots to use alternate system to lower flaps on commercial flights into LHR
  • 20. Airline Planning Panel - Madrid 21-22 May 2002 Test Flying It is not always possible to recreate flight and pressurisation loads on the ground. For this reason, Some defects can only be demonstrated....
  • 21. Airline Planning Panel - Madrid 21-22 May 2002 ....in the air!
  • 22. Airline Planning Panel - Madrid 21-22 May 2002 AVIATION OPERATIONAL MEASURES FOR FUEL AND EMISSIONS REDUCTION WORKSHOP Thank you !