British Aerospace said Air L.A. of Los...

British Aerospace said Air L.A. of Los Angeles has ordered two Jetstream Super 31s and taken an option to acquire one additional aircraft . . . The Federal Reserve said the average yield for one-year T-bills, the most popular index for making changes in adjustable-rate home mortgages, rose to 9.17% last week after averaging 9.07% the week before . . . Comprehensive Care Corp., Irvine, operators of 21 CareUnit and CompCare chemical dependency recovery facilities, said it has sold its DuPage, Ill., CareUnit division to Parkside Medical Services Corp. for $10.5 million . . . General Automation Inc., Anaheim, said its directors have signed a definitive agreement under which Sanderson Electronics PLC will be able to purchase up to 51% of General Automation.