Shares of Boeing (BA) fell Thursday after the Federal Aviation Administration (FAA) said the jet maker had i🧸nformed it and airlineꦫs of a possible loose bolt in the rudder control system of new 737 MAX jets. 

Boeing informed regulators and airlines of the possible defect after an unspecified airline discovered a bolt with a missing nut during routine maintenance, according to the FAA. Boeing subsequently inspected undelivered jets and found an improperly tightened nut in one of its aircraft.

It is the latest in a string of 737 MAX-related setbacks for the company this year. Deliveries of some 737 MAX models were temporarily halted in April after Boeing discovered a problem with certain parts supplied by Spirit AeroSystems (SPR). The company 澳洲幸运5官方开奖结果体彩网:discovered another ꦕmanufac💛turing defect in Spirit-supplied parts in August, leading it to 澳洲幸运5官方开奖结果体彩网:lower its delivery goal in October. 

The 737 MAX was grounded for nearly two years in March 2019 after a flight stabi🧔lizing system was involved in two fatal crashes in the span of five months.

Boeing shares traded about 1.6% lower at 11 a.m. Eastern Time Thursday but were still up nearly 32% for the year.