AD NUMBER: 2020-03-20

PRODUCT: Certain Boeing Model MD-11, MD-11F, and 717-200 airplanes, all Model 737-8 and 737-9 airplanes, all Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, certain Model 747-400 and 747-400F series airplanes, certain Model 757 and 767 airplanes, and all Model 777 airplanes.

ACTION: Final rule; request for comments.

SUMMARY: This AD requires revising the existing airplane flight manual (AFM) to include a limitation to prohibit operations that require less than 0.3 required navigational performance (RNP) within a specified area for airplanes having a certain multi-mode receiver (MMR) with certain software installed.

This AD was prompted by reports of the loss of global positioning system (GPS) data or degraded GPS positional accuracy while using a certain MMR.

DATES: This AD is effective February 18, 2020. The FAA must receive comments on this AD by April 3, 2020

COST: The FAA estimates that this AD affects 3,200 airplanes of U.S. registry. Operators may incur the following costs in order to comply with this AD:

• AFM revision: 1 work-hour × $85 per hour = $85 per revision

FMI: AD