L. P. Media, which is owned by Norman Lear and A. Jerrold Perenchio, said it is abandoning its effort to purchase Evening News Assn., which has agreed to be acquired by Gannett Co. . . . American Savings & Loan Assn.'s previously reported acquisition of 13 retail savings offices from Pacific Savings Bank has been completed . . . Flying Tiger, the air-cargo division of Tiger International, said it has been awarded a $74.4-million contract for cargo and passenger services by the U.S. Military Airlift Command . . . Maryland's liability to depositors at Old Court Savings & Loan will be about $175 million, the first accounting of the finances of the financially troubled thrift showed.