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After fatal accident, NTSB advises Learjet owners to check the main landing gear of their aircraft.

The National Transportation Safety Board issued an urgent warning to 10 Bombardier Learjet aircraft models on Wednesday to ensure that the main landing gear was attached correctly.

The Federal Aviation Administration's recommendation that landing gear manufacturer service bulletins be followed would apply to 1,883 aircraft currently in operation. The recommendation is based on an investigation into a fatal runway incident that occurred in Scottsdale, Arizona in February involving a Learjet 35A. It also stems from three previous incidents in which Learjet's landing gear detached from the airframe due to a retaining pin not being engaged.

In February, the Learjet 35A skidded of the runway and hit a Gulfstream 200, killing the captain. Three others aboard and an occupant in the parked plane sustained serious injuries.

Bombardier did not comment immediately, but in 2022, the production of Learjet aircraft was stopped. FAA did not comment immediately either.

The NTSB cited accidents in 1995, 2001, and 2008 in Oklahoma City (Oklahoma), Florida, and Recife (Brazil).

Bombardier's service bulletin, issued in the wake of the Scottsdale accident, asked operators to check that landing gear was attached correctly. However, only 12% had been checked, according to Bombardier.

The NTSB called on the FAA also to require Bombardier revise its procedures so that a visual inspection of the pin and retaining screw is performed after maintenance. This is because a mechanic may inadvertently install a retaining screw without passing it through the pin.

(source: Reuters)