Definition
On a Primary Flight Display (PFD) Nearest Airports page, the instrument approach procedure that the avionics system identifies as the most capable approach published for a given runway at a nearby airport, ranked by precision and minima. The system typically prioritizes approaches in this order: precision approaches (such as ILS) first, then approaches with vertical guidance (such as LPV or LNAV/VNAV), then non-precision approaches (such as LNAV, VOR, or NDB).
Plain English
When you look up a nearby airport on the PFD, the avionics shows the best instrument approach published for that airport — meaning the one that gets you closest to the runway in poor weather. If an ILS is available, that is shown. If not, it shows the next best option, and so on.
Context Anchor
Seen when using the PFD nearest-airport function during a diversion, emergency, or quick airport selection.
Why Pilots Care
Selecting the best approach available improves safety margins and reduces pilot workload by matching the procedure to actual aircraft capability and conditions.
Grounding Statement
When you pick a nearby airport on the display, the system may help you identify the most useful procedure for getting lined up with a runway and descending toward it.
Intuition Check
Do not assume best means automatically safest in all conditions. Here it means the best option the system can offer from its stored procedures and your aircraft capability; the pilot still must decide whether it fits the weather, runway, and situation.
Example Sentence 1
When the weather closed in, the pilot pulled up the Nearest Airports page and selected the field showing an ILS as its best approach available.
Example Sentence 2
With the ceiling at 800 feet we diverted to the airport that had the best approach available rather than continuing to the original destination.