Definition
A specific named Standard Terminal Arrival Route (STAR) used as an example in the Instrument Procedures Handbook to illustrate how published arrival procedures contain charted altitude restrictions that pilots must comply with when flying into a destination airport. Like all STARs, it is a preplanned IFR arrival route that transitions an aircraft from the en route structure to a point from which an instrument approach can begin, with depicted fixes, courses, and altitudes.
Plain English
A particular published arrival route — by name — that funnels arriving traffic toward an airport along a fixed path with required altitudes at each waypoint. The handbook uses it as a real-world example when explaining how to read and fly the altitude steps shown on an arrival chart.
Context Anchor
Seen on instrument arrival charts and in air traffic control clearances, especially when transitioning from en route flight toward an airport.
Derivation
STAR procedures are typically named after a fix, navaid, or geographic feature near the start of the route, followed by a version number (ONE, TWO, etc.) that increments each time the procedure is amended. So 'PENNS ONE' means the first published version of the arrival anchored on the PENNS fix.
Why Pilots Care
It removes the need to create a descent plan from scratch and guarantees safe vertical and lateral separation from other traffic.
Intuition Check
“Arrival” here does not just mean reaching the airport. It means a specific published instrument route used to enter the airport area. “ONE” does not mean Runway 1. It is the version number of the procedure.
Example Sentence 1
Cleveland Center cleared us direct PENNS, then the PENNS ONE Arrival into the destination.
Example Sentence 2
The pilot reviewed the PENNS ONE ARRIVAL plate to confirm the crossing restrictions at each waypoint before entering the terminal area.