Plain English Meaning

This is the name of one particular approach chart. It tells you the approach uses GPS-based navigation, demands a higher level of navigation accuracy than a basic GPS approach, lands on Runway 15R, and is the 'Z' version because the airport has more than one approach to that runway.

Full Definition

The title of a specific instrument approach procedure: an Area Navigation approach to Runway 15R that requires Required Navigation Performance (RNP) capability. The 'Z' is a chart identifier letter used to distinguish this approach from other RNAV approaches to the same runway (such as RNAV (RNP) Y RWY 15R or RNAV (GPS) X RWY 15R). RNP approaches require aircraft and authorization to fly to defined lateral and vertical , often including curved (RF) path segments not flyable on a basic GPS approach.