The National Transportation Safety Board (NTSB) issued an urgent recommendation Wednesday, calling for immediate action on certain Bombardier Learjet aircraft after investigators found that landing gear on multiple models could separate from the airframe during landing.

The recommendation, directed to the FAA, urges the agency to require operators of 10 Learjet models—affecting 1,883 airplanes in service—to comply with Bombardier service bulletins issued in March. A second recommendation calls for Bombardier to revise its maintenance procedures to include a post-maintenance visual check confirming that the main gear’s aft trunnion pin and retaining bolt are correctly aligned and secured.

The action stems from the NTSB’s ongoing investigation into a Feb. 10 runway excursion in Scottsdale,

See Full Page