FAA Instrument Flight Instructor (FII)IFR Procedures and ApproachesEasy
A pilot is conducting an ILS approach and notices that the approach plate depicts an 'A' in a black triangle in the notes section. What does this symbol indicate regarding the use of this airport as an alternate?
- ANon-standard alternate minimums apply for this airport.
- BThe airport is not authorized for use as an alternate airport.
- CThe airport is authorized as an alternate only when equipped with RNAV (GPS).
- DAn alternate airport is always required when filing IFR to this destination.
Show answer & explanationAnswer & explanation
Correct answer: A. Non-standard alternate minimums apply for this airport.
The 'A' in a black triangle symbol in the notes section of an instrument approach plate indicates that non-standard alternate minimums apply for that airport. Pilots must consult the 'Alternate Minimums' section of the NACO chart publication for the specific requirements to use the airport as an alternate.
Why the other options are wrong
- B. The 'A' with a triangle indicates non-standard minimums, not a blanket prohibition.
- C. RNAV (GPS) authorization is separate from the 'A' in a black triangle symbol.
- D. The need for an alternate is determined by weather conditions at the destination and other factors, not solely by this symbol.
A in Black Triangle Symbol
An 'A' in a black triangle symbol in the notes section of an instrument approach plate signifies that non-standard alternate minimums are applicable for that airport.
- Indicates non-standard alternate minimums.
- Requires pilots to consult the 'Alternate Minimums' section of charting publications.
- Crucial for IFR flight planning and alternate airport selection.
Memory trick: The 'A' in a Triangle means Alternate, but Check the Special Rules.