Boeing has issued an alert to airlines over the fire-fighting system of some of its commercial fleet, after discovering a flaw in the switch which activates engine fire extinguishers. The issue affects the 787 Dreamliner. The Federal Aviation Administration acknowledged there was a “risk to the flying public,” but has said it will not ground the aircraft.

Meanwhile, Boeing’s 737 MAX jets remain grounded following two fatal crashes: an Ethiopian Airlines jet in March and Indonesia’s Lion Air crash in October of last year. The two crashes killed everyone on board, a total of 346 people.

Despite the growing scrutiny of Boeing, the company confirmed reports last month that it would be replacing up to 900 quality control inspectors with smart technology. Critics say the speed of production and automation of safety checks are compromising traveler safety.