scope:

Purpose of this Notice.

This notice amends and clarifies guidance for Federal Aviation Administration (FAA) inspectors to authorize and issue Operations Specification (OpSpec)/Management Specification (MSpec)/Letter of Authorization (LOA) B054/MB054, Class II Navigation Using Single Long-Range Navigation System (S-LRNS) to operators conducting airplane operations under Title 14 of the Code of Federal Regulations (14 CFR) parts 91 subpart K (part 91K), 121, 121/135, 125 (including the Letter of Deviation Authority (LODA) 125M operators), and 135. The amendments contained in this notice enable airplanes equipped with S-LRNS to qualify for Required Navigation Performance 10 (RNP 10) authorization for operation in a limited number of designated areas of operations, (e.g., the Gulf of Mexico). This notice amends the applicable B054 templates (i.e., OpSpec B054, MSpec MB054, and LOA B054).