AD NUMBER: 2020-02-18

PRODUCT: All Gulfstream Aerospace Corporation (Gulfstream) Models GVI, GVII-G500, and GVII-G600 airplanes.

ACTION: Final rule; Request for comments.

SUMMARY: This AD requires revising the airplane flight manual (AFM) by attaching an airplane flight manual supplement (AFMS), which contains new or revised operating limitations, abnormal procedures, and emergency procedures.

This AD was prompted by reports of continued flight after a flight control surface shutdown. If flight is continued after a flight control surface shutdown, the airplane is left without protection against flight control surface hard-over and force fight events on the remaining, operable flight control surfaces.

DATES: This AD is effective February 13, 2020. The FAA must receive comments on this AD by March 30, 2020.

COST: The FAA estimates that this AD affects 329 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

• Attach the applicable AFMS to your AFM: 1 work-hour × $85 per hour = $85 per aircraft.

FMI: AD