Modification of Restricted Areas 5103A, 5103B, and 5103C, and Revocation of Restricted Area 5103D; McGregor, NM

This action revises Restricted Areas 5103A (R-5103A), 5103B (R-5103B), and 5103C (R-5103C), and revokes Restricted Area 5103D (R- 5103D) at McGregor, NM. The United States Army (U.S. Army) requested that the FAA reduce the size of R-5103A; combine a portion of the area currently designated as R-5103A and a portion of the area currently designated as R-5103D, designating the combined area as a new R-5103B; and combine the areas currently designated as R-5103B and R-5103C, and re-designate the combined area as a new R-5103C. The new R-5103A, B, and C will essentially occupy the same overall boundaries and altitudes as the current R-5103A, B, C, and D; a segment of the western boundary of R-5103C will move approximately one mile to the west; and a portion of the area currently designated as R-5103D will be eliminated. The altitude structure of the new R-5103A will be from the surface to but not including flight level (FL) 180, and R-5103B and R-5103C will be from the surface to unlimited. These modifications will allow the U.S. Army to activate the restricted areas in a manner that is more consistent with the actual utilization of the airspace.