Boeing needs to check hundreds of 737 Max jets

Bloomberg

Boeing Co will need to inspect hundreds of undelivered 737 Max jets for a potential flaw in their electrical power systems, said people familiar with the matter.
About 450 Max planes built since early 2019 could potentially require repairs, a total that includes about 90 aircraft in commercial operation, said the people, who asked not to be named because the matter is private. Boeing instructed airlines to ground dozens of recently delivered 737 Max jets to check for the manufacturing defect. The problem renews scrutiny of the upgraded 737 model, whose success is critical to helping Boeing recover from coronavirus pandemic after burning through $20 billion in cash last year.