The Federal Aviation Administration (FAA) announced on Monday that it will require inspections of 2,600 Boeing 737 aircraft due to potential failures in passenger oxygen masks during emergencies. This directive impacts both 737 MAX and Next Generation models, following reports of passenger service unit oxygen generators shifting out of position, which could hinder the provision of supplemental oxygen during depressurization events.
Boeing had previously issued a bulletin on June 17, urging airlines to conduct visual inspections. On Monday, Boeing informed airlines to update certain restraining straps on 737 oxygen generators. An adhesive introduced in August 2019 had caused the units to shift up to three-quarters of an inch under certain conditions. Boeing stated, “We have reverted to the original adhesive for all new deliveries to ensure the generators remain firmly in place, as intended.” The company added that inspections of the in-service fleet and undelivered airplanes had not revealed any units failing to operate properly.
The FAA’s airworthiness directive, effective immediately, requires inspections and necessary corrective actions within 120 to 150 days, depending on the 737 model. The directive also prohibits airlines from installing potentially defective parts. Airlines must perform a general visual inspection and, if needed, replace oxygen generators with new or serviceable ones, adjust strap thermal pads, and reposition impacted oxygen generators, according to the agency.
Related Topics:
