A federal grand jury yesterday indicted a career American Airlines employe on charges that he stole $148,780.67 from the airline during a seven-month period last year.

Albert Charles Gross, 53, of the 6500 block of Bowie Drive, Springfield, was accused of stealing the money while he worked as a financial supervisor for American at National Airport. The seven-count indictment, handed up by an Alexandria grand jury, alleges that Gross stole $38,666.50 in November of 1980 alone.

"He was a 28-year employe of the company," David Frailey, an American Airlines spokesman in Dallas, said yesterday. Frailey said that an internal investigation by the airlines security personnel led to the FBI investigation that produced the indictment.

Gross could not be reached for comment yesterday.

The same federal grand jury also indicted 29-year-old Alonzo Eugene Glascoe of Washington on charges of possession of herion with intent to distribute and of assaulting a federal drug officer during an April 9 incident at the airport.

Glascoe, who was shot during the incident, was charged with allegedly dragging officer Roger Isaac Jr. across the parking lot there after Isaac attempted to question him. Officers said the Glascoe allegedly pinned the officer's arm in his automobile window and was attempting to flee when the investigator shot him.