IFR Study Cards

Question 1

What are the alternate airport requirements? (FAR 91.169c)

Answer 1

1-2-3 rule
1 - One hour before or after your planed ETA at the airport
2 - at least 2,000ft ceilings are forecast
3 - at least 3 SM visibilities are forecast
then, no alternate is required

Question 2

What are the minimums forecast to use an airport (with an IAP) as an alternate?

Answer 2

2SM visibility

Question 3

What are the three categories of NOTAMs? (AIM 5-1-3)

Answer 3

• (D) distant information beyond the area of responsibility of the Flight Service Station. Contains items serious enough to affect airport or facility usability
• (L) local information what would have little impact on non-local operations. Contains items like taxiway closures, persons or equipment near runways, beacon outages
• (FDC) information that is regulatory in nature. Items such as amendments to published IAPs or charts; TFRs caused by natural disasters or large scale public events