Updated from 1:21 p.m. EDTAMR ( AMR) says it's reviewing whether to spin off assets, with American Eagle apparently a leading candidate. "If you look around the rest of the industry, most of the other airlines have the vast majority of their regional feed provided by independent regional carriers," said CFO Tom Horton, on a conference call after the parent of American Airlines reported a sixth consecutive quarterly profit. He said American recently developed a market-based formula to buy services from American Eagle, which has annual revenue of $2.4 billion. Just Tuesday, Delta ( DAL) said it was reviewing a spinoff of its regional carrier Comair, adding that it will decide in the next few months whether to part ways with the operation. With spinoffs the popular topic these days in the airline industry, Horton discussed various possibilities in his remarks. He said potential candidates include American Eagle, investment adviser subsidiary Beacon Advisors, a maintenance and repair business and the Advantage frequent-flier program. "The objective is to enhance shareholder value," he said, but there is no timetable for reaching a decision. While FL Group, which holds 9.1% of American shares, has called for a quick Advantage spinoff, Horton said the program "is the cornerstone for how we interact with our best customers," and questioned whether shedding the business would benefit the airline. He also said American, like Delta, will provide investors with more information about its businesses going forward.