The Federal Aviation Administration has said it will launch an investigation into Air Resorts as a result of the fiery crash Dec. 16 of one of the charter company's Convair 440 planes at a small airstrip near Jasper, Ala.

Air Resorts voluntarily suspended all of its civilian and military operations after the crash, which injured 12 of 39 persons on board, but resumed flying government charters last Thursday, according to company President Ted Vallas.

The FAA will "determine if any violations were committed by the company and also . . . ascertain the ability of the company to comply with requirements of the regulations pertaining to their . . . operations," said John Hull, manager of the FAA's San Diego office.

Vallas said Air Resorts' suspension of civilian charter flights will continue because "I'd like to look at things more in depth." Two scheduled government charters were flown Thursday morning, he said, and the next civilian charter is scheduled for next week.

"I'm 100 percent certain they will find nothing wrong with the operation," Vallas said, adding that his company had "nothing to do" with the engine failure that reportedly caused the crash. The company's engines are overhauled by outside contractors.

Air Resorts was cited by the FAA last April for maintenance and record-keeping violations. The agency looked at 327 U.S. airlines in a "white-glove" inspection and found problems at 16.