Ryanair Boeing 737 MAX 8 as seen during taxiing, take off and flying phase in Eindhoven Airport EIN.
A Ryanair Boeing 737 Max 8.
  • Ryanair CEO Michael O'Leary said the airline has complained to Boeing about quality-control problems.
  • He said they found "lots of small defects" like a wrench left under one plane's floor.
  • But O'Leary also said he had the "utmost confidence'" in Boeing CEO Dave Calhoun.

The CEO of Europe's biggest airline by passenger numbers said he complained to Boeing about quality-control problems including a wrench left inside a plane, per The Independent.