Boeing has said it faces delivery delays on a “significant number” of its 737 Max planes over a production issue.
The aviation giant said its supplier had said the installation of fittings on the rear of the plane did not follow the standard.
“This is not an immediate safety of flight issue and the in-service fleet can continue operating safely,” according to the US-based plane-maker.
It is the latest problem for Boeing as the industry faces a shortage of jets.
The manufacturing problem affects 737 Max family of airplanes, including the Max 7, Max 8 and Max 8200 airplanes, in addition to is P-8 Poseidon maritime surveillance aircraft.
“We have notified the FAA of the issue and are working to conduct inspections and replace the non-conforming fittings where necessary,” according to a company statement.
It has told customers that they should expect “lower near-term” deliveries until the required work is completed.