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1 Profile of Commercial Air Travel
Pages 24-38

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From page 24...
... Therefore, this chapter presents statistics regarding routine travel -- including data on passengers, flight and cabin crews, and aircraft -- and enumerates the mayor types of emergencies that affect air quality, including smoke, fumes, fire, explosion, and depressurizatlon. PASSENGERS For most Americans, exposure to an airliner cabin environment is infrequent and brief, although 70% of American adults have flown at least once.
From page 25...
... a Data from Gallup.6 TABLE 1-2 Demographic Characteristics of Airline Passengers, 1984a Proportion of Descriptor Passengers, X Age group: <18 11 27 18-24 10 13 25-34 21 17 35-44 23 13 45_54 16 9 55-64 10 9 65+ 9 12 Sex: Male 54 49 Female 46 51 Proportion of UeSe Population, Xb a Data from U.S. Travel Data Center:5 and U.S.
From page 26...
... - ~ ~ ~ - - ~ ~ ~ Domestic , 1980 1982 1984 1986 1988 1990 1992 1994 1996 FISCAL YEAR FIGURE 1-2 Passenger load factor on U.S. certificated air carriers.
From page 27...
... 27 TABLE 1-3 Airline Passengers and Passenger Miles Flown, 1984a Passengers, thousands Revenue Passenger Miles, thousands United 41,01046,037,064 Eastern 38,08129,359,288 Delta 37,34127,040,102 American 34,12336,702,296 Trans World 18,48728,296,956 US Air 17,0478,190,589 Republic IS, 1778,509,948 Piedmont 14,2746,227,641 Pan American 13,91328,066,826 Northwest 13,21619,772,356 Southwest 12,0524,669,435 People Express 11,7757,770,945 Continental 11,11510,923,395 Western 10,6389,396,580 Pacific Southwest 7,8303,047,338 Frontier 7,0484,464,168 Ozark 4,9492,693,866 Air Cal 3,9901,548,506 Hawaiian 3,022403,857 New York Air 2,793937,102 Alaska 2,5431,841,212 American West 2,3981,247,134 Aloha 2,346392,421 Braniff 2,1761,885,619 Muse 1,980925,083 Northeastern 1,6551,652,119 Midway 1,464747,428 World 1,4103,889,001 a Data from Air Transport Association of America.2
From page 28...
... Although 99% of pilots are men, 85% of flight attendants are women; 61% of flight attendants are married, and 43X have children.8 9 13 THE U.S. AIRLINE-INDUSTRY When gathering or reporting information on the nation's air carriers, FAA distinguishes between certificated route air carriers, which operate under the ruler of Title 14, Part 121, of the Code of Federal Regulations (14 CFR 121~4 and hold certificates of public convenience and necessity, and commuters or air taxis, which operate under 14 CFR 135.1
From page 29...
... Hart Research Associates.9
From page 30...
... 12 Of the aircraft used by commuter airliner in 1984, 77.5X had fewer than 20 seats. Because small aircraft account for a very small percentage of the total revenue passenger miles flown and ventilation rater on small aircraft are generally much higher than on larger planes, this study does not address in any detail the problems associated with air quality in there aircraft.
From page 31...
... 1995 1996 / 2 Engine Narrow-Body 53.5% 4 Engine Wide-Body 6.6% engine Wide-Body 7.4% / / \, 2 Engine wide-Body 1 / / A\ 12.8% 4 Engine Narrow Body 3% ,_~/3 Engine Narrow-Body 16.7% 1 996 FIGURE 1-3 Large jet aircraft in U.S. commercial airline service.
From page 32...
... 32 I· on ~..
From page 33...
... . Table 1-9 summarizes incidents that involved smoke or fumes in cockpits and cabins in 1974-1983, according to a separate data base, the FAA Civil Aeromedical Institute's Cabin Safety Data Bank.
From page 34...
... Reported Fires or Explosions Incidents of Source of Accident or Incident and On-Ground [ires Cabin Smoke Mechanical failure (including 38 30 engines, landing gear, air conditioning, etc.) Electric malfunction 5 20 (including navigation, communication, and control instruments, etc.)
From page 35...
... Control equipment malfunction (e.g., electric panel, fire prevention system, pressure controller, and broken wire) Landing gear malfunction (e.g., hydraulic fluid loss)
From page 36...
... Government Printing Office, 1985.
From page 37...
... for Committee on Airliner Cabin Air Quality. (computer printouts)
From page 38...
... D.S. Travel Data Center.


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