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Flashcards in IFR Information Deck (14):

What do you need to descend below DA/MDA?

1. Must be in a continuous position to land (stabilized approach with no erroneous maneuvers, PART 121: Descent rate allows for a landing in the touchdown zone)
2. Flight visibility no less than prescribed in the IAP
3. Runway environment (threshold markings, runway lights, VASI/PAPI, REIL, etc.)
-Approach lights (may descend 100ft above TDZE)


When do you need to file a destination alternate?

123 rule


How much fuel do you have to carry for a 121 IFR flight?

1. Fly to and land at the destination airport
2. After that, fly for a period of 10% of the total time to fly to the airport it was released to
3. After that, fly to the most distant alternate in the flight release
4. After that, fly for 30 minutes at holding speed 1,500ft above the airport alternate or destination if no alternate is required under standard temperature conditions
5. If no alternate is specified: a jet must have enough fuel to fly to the destination and fly for an additional 2 hours at normal cruising fuel consumption


What are the IFR takeoff limitations for a 121 carrier?n(121.613)

May not takeoff IFR unless latest weather reports or forecasts indicate that at the ETA at the destination the weather will be at or above published landing minimums


How do you know if the flight visibility is the visibility prescribed in the procedure?

The approach lights are roughly 1/2 mile long...


What does the D in D-ATIS stand for?

Digital ATIS


When do you need to file a takeoff or departure alternate?

If the weather at the departure airport are below category 1 minimums


What are the requirements for a departure alternate?

1. Must be within1 hour of flying for 2 or less engine aircraft
2. Must be able to maintain MEA
3. Departure alternate must be forecasted to have derived values for the time of arrival
4. Scheduled departure may be used as departure alternate if it meets the requirements


What is exemption 3585?

Still allows dispatch when forecast for the destination or 1st alternate indicate use of conditional words "TEMPO" in the remarks section that the weather could be below the derived values at the ETA
-However, main body of forecast must indicate above derived values
-Must have 2nd destination alternate filed
-TEMPO ex must be no less than the following:
1. Destination Airport: No less than 1/2 the lowest visibility reported in the forecast
2. 1st alternate: TEMPO not less than 1/2 the derived ceiling and or visibility
3. 2nd alternate: Must always be at or above derived values


When would you need a 2nd destination alternate?

If the weather for the destination and first alternate are "marginal"
1. Ceiling: published landing ceiling (CAT I)
2. Visibility: published landing visibility (CAT II)
1st alternate
-Ceiling and visibility are at derived values


Do the derived values apply to all alternates?

Yes. Takeoff, destination and 2nd destination.


How do you get derived values? What minimums do you start with?

Category I landing minimums


What are the derived values with 1 Nav facility?

Add 400ft HAA or HAT and 1sm visibility


What are the derived values for 2 Nav facilities?

-Add 200ft and 1/2sm to the higher visibility minimum
-Must be 2 approaches to 2 SUITABLE runways