Another twist in the ongoing fight over the noise problems after the Federal Aviation Administration changed its flight paths out of Sky Harbor Airport.

Homeowners dealing with jet noise were hoping once the city of Phoenix and the FAA worked out their troubled negotiations, a solution to would be on the horizon.

Then they saw an announcement released by the FAA, saying the agency would be conducting a multi-year study on the effects of aircraft noise on communities.

"I'm alarmed by this study, it just throws another issue on the table with a time factor that could be two years," said Steve Dreiseszun, who lives in the FQ Story Historic District.

According to the FAA, the study will being taking input from 20-communities nationwide. Exact areas aren't being released.

We asked them about residents' concerns, a spokesperson told us, this study has nothing to do with what's going on in Phoenix and they plan to move forward with talks.

"It's comforting he would take the opportunity to state it's aside of what's happening in Phoenix," Marquez said. "I still think we're all very leery of that type of response."

Residents say after months of what they believe were questionable decisions, they fear this study could derail things even more.

"Until we see real action, we can't really trust what they say," Dreiseszun said.

The FAA says it is still very willing to address resident's concerns.

In an email, spokesperson Ian Gregor went on to say, "We're continuing our dialogue with the city and plan to send a formal response soon to a number of issues they have raised."