In a statement, the company said it has recommended that 16 of its customers “address a potential electrical issue in a specific group of 737 MAX aeroplanes prior to further operations”.
Boeing also said it is working with the US Federal Aviation Administration (FAA) on the issue and will provide “appropriate corrective actions”.
The incident threatens to cause yet more headaches for the company over the safety of its MAX planes, which were grounded across the world in March 2019 following two fatal crashes.
While the aircraft was cleared to return to the skies in November last year, the problems have already forced the company to shell out over US$2.5bn in fines and compensation after reaching a settlement with the US Department of Justice.
However, the MAX is not the only aircraft model to have caused issues for Boeing in recent months, with its 777 planes using Pratt & Whitney 4000-112 engines having been grounded in February after a plane using the same engine type suffered a failure that sent debris raining down over the US city of Denver, Colorado.
Shares in the firm were down 1.6% at US$250.74 in mid-morning trading in New York.