For narrowbodies like the 737-900ER, the ceiling is tight. Once seat counts go above 189, an additional pair of exits is mandatory to ensure a full cabin evacuation within 90 seconds.

The US Federal Aviation Administration has urged airlines to inspect so-called door plugs on an earlier version of Boeing 737 airplanes, after one blew out of the side of the newer Max model ...

The Federal Aviation Administration late Sunday recommended airlines operating Boeing 737-900ER jets inspect their door plugs, which have the same design as the grounded 737 Max 9 fleet.

The latest order concerns 737-900ERs, which are some of the last versions of the “Next Generation” era of the 737 line. The first 737-900ER was delivered to Lion Air on April 27, 2007, and 505 ...

The 737-900ER has over 11 million hours of operation and about four million flight cycles, according to the F.A.A. Boeing delivered about 500 of the planes globally between 2007 and 2019, though ...

Boeing, the manufacturer, has expressed full support for the FAA’s recommendation. The company’s 737-900ER aircraft have been in operation since 2007, with the last delivery made in 2019.