FAA Instrument Flight Instructor (FII)IFR Procedures and ApproachesEasy
A pilot is planning an instrument flight to an airport that has a published RNAV (GPS) approach. The approach plate shows a 'NA' symbol in a black triangle for alternate airport consideration. What does this symbol indicate?
- AThe RNAV (GPS) approach cannot be used to qualify the airport as an alternate due to lack of weather reporting or unmonitored facility.
- BThe RNAV (GPS) approach requires specific aircraft equipment beyond a basic GPS receiver.
- CThe RNAV (GPS) approach is not authorized for use as a primary approach at this airport.
- DThe RNAV (GPS) approach is only available during daylight hours or VMC conditions.
Show answer & explanationAnswer & explanation
Correct answer: A. The RNAV (GPS) approach cannot be used to qualify the airport as an alternate due to lack of weather reporting or unmonitored facility.
The 'NA' symbol in a black triangle on an approach chart specifically indicates that the approach cannot be used for filing the airport as an alternate, often due to lack of weather reporting or unmonitored navigational facilities.
Why the other options are wrong
- B. While some RNAV approaches require specific equipment, the 'NA' symbol specifically addresses alternate airport use, not general equipment requirements.
- C. This symbol does not restrict the approach as a primary approach, only for alternate qualification.
- D. The symbol does not impose time-of-day or weather condition restrictions on the approach itself, but rather its use for alternate planning.
NA Symbol (Alternate Airport)
A black triangle with 'NA' on an instrument approach chart indicates that the approach cannot be used to qualify the airport as an alternate.
- Applies to alternate airport planning per 14 CFR 91.169.
- Often due to lack of weather reporting or unmonitored NAVAID.
- Does not restrict the approach for primary use.
Memory trick: No Alternates Allowed, Not A Valid Alternate