(Reuters) - Boeing Co said on Sunday it will have to perform rework on about 50 undelivered 737 MAX airplanes, potentially delaying near-term deliveries, after its supplier Spirit AeroSystems discovered two mis-drilled holes on some fuselages.
Boeing confirmed the findings in response to a Reuters query after industry sources said the problem of spacing had been discovered in holes drilled on a window frame, but the jetmaker said safety was unaffected and existing 737s could keep flying.
(Reporting by Tim Hepher and Valerie Insinna; Editing by Tom Hogue)