A new plan may fly for Terminal F: The airport facility is overloaded, but much work must be done first

Much of the work on Terminal F will be in areas passengers do not see, where bags are sorted and screened or airlines and other airport tenants have offices, he said.

US Airways' Lambert emphasized that the project was in its preliminary phases, saying the airline would not give it a green light until it knew more about what would be involved and how much it would cost.

"Over the next year, in a collaborative process with the airport, we'll see from an engineering standpoint what we can do," Lambert said.

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