Boeing is under a fresh safety notice about its older 737 model

After a door plug on an earlier Boeing 737 model blew out of the side of a newer Max type on an Alaska Airlines flight earlier this month, the US Federal Aviation Administration has advised airlines to inspect these “door plugs.” Referring to the panel that seals the opening where a mid-plane exit would be, the FAA stated on Sunday that airlines using the Boeing 737-900ER model should “visually inspect mid-exit door plugs to ensure the door is properly secured.” Despite not being a part of the latest Max fleet, the Boeing 737-900ER shares the same door plug design. The US aviation regulator has included an operator safety alert.


In Monday’s premarket trading, shares of Boeing dropped by over 3%. The company, which has repeatedly experienced quality and safety difficulties with its aircraft in recent years, which have resulted in the long-term grounding of certain jets and delayed deliveries of others, will suffer a further blow as a result of the safety notice on a plane that has been in operation for almost two decades. Since a door plug on one of the company’s Max 9 aircraft burst out from the side of the fuselage just a few minutes into a flight from Portland, Oregon, to Ontario, California, causing the pilot to make an emergency landing, the planemaker’s stock has dropped by almost 14%.


According to the FAA, several airlines that have investigated the earlier-built Boeing aircraft have found “findings with bolts” holding the door plugs in place since the terrible incident that occurred little over two weeks ago. The regulator did not provide details about the results. Following recent examinations of the more modern Max 9 aircraft, loose bolts were also discovered by United and Alaska Airlines. On Monday, United and Delta Airlines informed CNN that they had begun the process of inspecting their Boeing 737-900ER aircraft and that they did not foresee any interference with their regular operations. The older model of aircraft is not grounded by the FAA notification. Rather, it advises airlines to check the bolts and door plugs “as soon as possible.”

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