How are runways on sectional charts that are listed as private identified?
Lets say I fly from a public airport to a private strip; I would log the departure airport as BNA, but what would I list the private strip as?
Generally, what is the accepted norm?
In the USA, as far as your logbook is concerned, FAR 61.51(b)(1)(iii) only requires "Location where the aircraft departed and arrived," not the 4-letter ICAO identifier of your airports. When you abbreviate the airport with its identifier, that's all you're doing: abbreviating. You could, for instance, write "Nashville International Airport" instead of "KBNA."
Seaplane and helicopter pilots often land in places that aren't even airports. You might log the destination as "Murphy Lake" or "Walmart Parking Lot." Such is the standard convention.
For purposes of the flight plan, there are a few options if flying to a location that has no identifier. On an ICAO flight plan to a location with no identifier, you would enter ZZZZ as your airport, and in the remarks section include a DEST/ group including the lat/long of your destination. For instance, I think DEST/3607N08641W would work. On an FAA flight plan, you can list the nearest waypoint to your destination, and again, describe your actual destination as a common name or lat/long in the remarks.
I would use the airport identifier, if available, or the name on the sectional. For example, on this section of NY sectional, you can see several (Pvt) airports, they are indicated by red R in a circle. PASPORT is enterable in skyvector.com as a destination, as is WATERS. Entering them as a destination, skyvector will change them to an airport identifier, which you can then type in as a waypoint.
B&B, just north of PASPORT, can't be entered as anything I could find to start. But, dragging the pink route line, it can be pulled over B&B and then it shows up with an identifier you can use. Same with the Unknown airport south of 9B1.
If you click on the Departure or Destination airport, skyvector will open more info for that airport, and from there a list of all airports and their identifiers in the state can be selected. B&B and Unknown are both listed there.
