FAA Instrument Flight Instructor (FII)IFR Procedures and ApproachesEasy
A pilot is planning an IFR flight to an airport with a published RNAV (GPS) approach. The pilot notes that the approach plate has a 'NA' (Not Authorized) symbol in the notes section for alternate airport planning. What does this symbol specifically mean for this airport?
- AThe airport is not authorized for use as a destination airport under IFR.
- BThe approach is not authorized for aircraft without WAAS capability.
- CThe airport is not authorized for use as an alternate airport under IFR.
- DNight operations are not authorized at this airport.
Show answer & explanationAnswer & explanation
Correct answer: C. The airport is not authorized for use as an alternate airport under IFR.
The 'NA' (Not Authorized) symbol in the notes section of an instrument approach plate, specifically related to alternate airport planning, indicates that the airport cannot be used as an alternate airport for IFR flight planning purposes. This is often due to a lack of weather reporting, navigation aid reliability, or other operational limitations.
Why the other options are wrong
- A. The 'NA' symbol for alternates does not prohibit its use as a destination, only as an alternate.
- B. WAAS requirements are typically indicated in the equipment requirements, not by the 'NA' alternate symbol.
- D. Night operations restrictions would be noted differently, usually in Airport/Facility Directory or specific NOTAMs.
NA Symbol (Alternate Airport)
The 'NA' (Not Authorized) symbol in the notes section of an instrument approach plate, when referring to alternate minimums, means the airport cannot be used as an alternate airport for IFR flight planning.
- Prohibits use as an IFR alternate.
- Does not restrict use as a destination.
- Reasons typically include lack of weather reporting, unreliable navigation, or operational limitations.
Memory trick: NA means No Alternate Allowed.