Nos. 86-2520, 86-2530

865 F.2d 1112

111 Lab.Cas. P 56,050

AIR CAL, INC.; Air Canada; Alaska Airlines, Inc.;

American Airlines, Inc.; Braniff, Inc.; Canadian Pacific

Air Lines, Inc.; Continental Air Lines, Inc.; Delta Air

Lines, Inc.; Eastern Airlines, Inc.; Evergreen

International Air Lines, Inc.; Frontier Airlines, Inc.;

Northwest Airlines, Inc.; Pacific Southwest Airlines, Inc.;

Pan American World Airways, Inc.; Piedmont Aviation, Inc.;

World Airlines, Inc.; United Air Lines, Inc.; USAir, Inc.;

and Western Air Lines, Inc., Plaintiffs-Appellees,

CITY AND COUNTY OF SAN FRANCISCO, a municipal corporation;

the Airports…