Senior company leadership was not involved in the review and first became aware of this issue in the aftermath of the Lion Air accident.
This is the sound of low level engineers being thrown under the wheels of the bus.
The question should be asked; in a safety first company how come the leadership didn't hear? There should have been a well established high priority channel within the company where safety issues could not be ignored or neglected or hushed up. If they want the flying public's confidence, and even more important the pilots confidence in their products, they need to rectify this see no evil hear no evil culture they've created.
G