The US Federal Aviation Administration (FAA) is investigating an issue regarding seats installed on an American Airlines Boeing 757-200.
"The Federal Aviation Administration is currently investigating an issue involving the installation of seats on an American Airlines Boeing 757 that is unrelated to previous incidents," says the agency.
The seats on the affected aircraft were installed correctly but in the wrong place, say sources.
Several media outlets have reported that the seats blocked an emergency exit on the aircraft by up to 2in.
"Those seats did not block the emergency exit," says Fort Worth-based American. The airline declines to elaborate further on the issue.
American temporarily pulled 48 757s from service to install extra metal ties to the seat clamps on the aircraft this past October, following separate incidents of rows of seats coming loose on two 757s while inflight.