Why not all airports can be used as alternate airports?


Why not all airports can be used as alternate airports? An airport may not be qualified for alternate use if the airport NAVAID is unmonitored, is Global Positioning System (GPS) based, or if it does not have weather reporting capabilities.


Can an airport with only a GPS approach be used as an alternate?

So you can file with the destination or the alternate having only a GPS approach, but not both. WAAS-equipped aircraft can file for destinations and alternates having only GPS approaches. In both cases, the weather at the time of arrival must satisfy the LNAV or circling minimums or higher if noted.


What is the 1 2 3 rule for alternate airports?

14 CFR 91.169 (b) (2) (i) states that an alternate airport is not required if “for at least 1 hour before and for 1 hour after the estimated time of arrival the ceiling will be at least 2000 feet above the airport elevation and the visibility will be at least 3 statute miles.” To help remember those conditions of the ...


Do all airports have IATA?

Every official airport in the world is given a three-letter code from IATA and a four-letter code from ICAO – from one of the world's largest airports, Dammam/King Fahd International Airport (ICAO: OEDF, IATA: DMM) in Saudi Arabia, to one of the smallest, Saba/Juancho E.


How do airports without ATC work?

Non-towered airports may lie inside or underneath controlled airspace. In that case, some or all aircraft arriving and departing require clearances from a remote air traffic control unit, such as terminal or center control, even though there is no control tower managing landings and takeoffs.


How far away can an alternate airport be?

Not more than one hour from the departure airport at normal cruising speed in still air with one engine inoperative. (2) Aircraft having three or more engines. Not more than two hours from the departure airport at normal cruising speed in still air with one engine inoperative.


Why do airports have 2 runways?

Larger airports usually have several runways in different directions, so that one can be selected that is most nearly aligned with the wind. Airports with one runway are often constructed to be aligned with the prevailing wind.


Can you use an airport without an approach as an alternate?

This does not mean you cannot file IFR to such an airport, but there are some restrictions. First, any time you file IFR to an airport without a published approach, you must file an alternate, no matter how good the weather is forecast to be at the planned destination.


What is the 123 rule for alternate airports?

It's called the 3-2-1 rule, and it's the easiest way to remember the regulation. To recap, if the weather at your destination isn't at least 3 SM of visibility and 2000' AGL ceilings from 1 hour before to 1 hour after your ETA, you need to file an alternate.


What is an alternate airport not authorized?

Airports with alternate minimums that are not authorized are denoted on the approach chart with the “ ” designation and are not listed in this section. NA - means alternate minimums are not authorized due to unmonitored facility, absence of weather reporting service, or lack of adequate navigation coverage.


What is 80 20 airport rule?

The 80:20 rule means airlines need to use their take-off slots at least 80% of the time in order to retain them. A justified non-use provision will be retained to prevent airlines flying ghost flights.


What is the 10 24 rule in aviation?

(1) A rest required under paragraph (b)(1) of this section may be scheduled for or reduced to a minimum of 8 hours if the flight crewmember is given a rest period of at least 10 hours that must begin no later than 24 hours after the commencement of the reduced rest period.


What is the 2 hour airport rule?

These are the standard rules about how early to arrive at the airport: – For domestic flights, plan to arrive at the airport 2 hours early. – For international flights, plan to arrive at the airport 3 hours early. In most cases, that should give you plenty of time to make your way to the gate.