WASHINGTON (AP) _ Jane Garvey, the new head of the Federal Aviation Administration, will be under close scrutiny from Congress as she takes over the troubled agency, an influential senator says.

Sen. John McCain, R-Ariz., the chairman of the Senate Commerce Committee, said he had ``grave and serious reservations'' about Garvey's qualifications because most of her experience had been in surface transportation.

Garvey, former deputy administrator of the Federal Highway Administration, was confirmed by voice vote in the Senate on Thursday.

Her appointment received particular scrutiny because the FAA has been under fire for its handling of last year's ValuJet crash in Florida and for delays in upgrading air traffic control systems.

In addition to working for the FHA, Garvey has been commissioner of public works in Massachusetts. She did serve two years as director of Boston's Logan International Airport.

McCain said his committee would watch her performance ``very closely and carefully because she does not come to this job highly qualified.'' But he added that ``I hope she is the breath of fresh air we need at the FAA.''

Garvey will be the first FAA administrator to be named to a five-year term instead of serving at the pleasure of the president.