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draft - US Environmental Protection Agency

draft - US Environmental Protection Agency

draft - US Environmental Protection

[Note: some graphics & attachments are not available in this electronic version of document.] MEMORANDUM TO: Bill Albee, FAA Rich Wilcox, EPA FROM: Sandy Webb, EEA September 29, 1995 SUBJECT: Technical Data to Support FAA's Advisory Circular on Reducing Emissions from Commercial Aviation Attached for your review is the draft document that presents technical data to support FAA's Advisory Circular on Reducing Emissions From Commercial Aviation. Data was collected and compiled in four main areas: commercial aircraft fleet emissions and strategies, conversion of GSE to alternative fuels (including electric), limiting the use of APUs, and fixed power and air conditioning systems at airport gates. As discussed previously, many of the data elements are in draft form and would benefit from manufacturer and industry review. In particular, it would be advantageous to have industry representatives evaluate GSE use, brake horsepower, fuel consumption, and cost inputs. There are gaps in much of this data, which industry should be able to fill. For APUs, we appreciate FAA's assistance in contacting AlliedSignal to confirm the emission factors contained in ENSR's memorandum and to authorize inclusion of the data in the advisory circular. It would be useful to have AlliedSignal also review APU calculation procedures, and industry representatives review APU use and cost data. Yesterday, EEA received average aircraft taxi data from FAA. These data were received too late to compile and review for incorporation into the attached draft document and airport database. Historical average taxi data was received from FAA's Office of Aviation Policy, Plans, and Management Analysis and includes airport location identification, OAG air carrier code, number of departures, number of arrivals, average taxi-in time, and average taxi-out time on a monthly basis. We do not have information on how the average taxi data was calculated. The file format and disk copy of the data file that FAA provided to EEA are included in Attachment 1. Because the data EEA requested of FAA on airports (Memorandum from S. Webb to B. Albee, FAA and R. Wilcox, EPA dated August 23, 1995) is coming from trade association surveys or hard copy reports filed with the FAA's Airports Division, data on only 50 airports is being provided for some data elements. As of today none of this information has been transmitted to EEA. Also, Airports Division was unable to provide other data elements, which we had originally hoped to compile. This includes the following data. · Aircraft Gates - number of gates by airport - 400 Hz power/PCA status of gates by airport - 400 Hz power/PCA system installation, operating, and maintenance costs 1

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