Dispatch Flashcards
What minimum information is required on a release?
- Aircraft Identification
- Flight #
- Departure, Destination, Alternate
- Type off Operation (IFR/VFR)
- Minimum Fuel Supply
- MEL/CDL/NEF items
How long is a dispatch release valid?
- Until 2 hours beyond the scheduled departure release time
- If flight returns to the airport it last departed
How long is a REVALIDATED release good for?
- Until 2 hours beyond the scheduled departure release time
- If flight returns to the airport it last departed
How do you make a “Pen and Ink” correction or change to a dispatch release?
- PIC will make the change, indicating ZULU time change was made, and initials of the dispatcher.
- Dispatcher will make changes on their end, indication ZULU time, and reason for change.
How much fuel must be carried for a FAR 121 flight?
Arrive at your destination then fly to your farthest alternate plus 45 min at normal fuel cruise fuel consumption.
When must a takeoff alternate be filed?
A takeoff alternate is required when visibility is below lowest CAT I minimums for the runway in use.
What conditions must be met for a takeoff alternate to be legal?
- Must not be more than 1-hour normal cruise in still air with one engine inoperative from departure airport
- WX must conform to OPS SPEC C055
- Alternate must be listed on dispatch release
When must a destination alternate be filed?
1 hour before to 1 hour after the estimated time of arrival weather report or forecasts to drop below 2000 ft. ceiling and 3 sm visibility.
What is the minimum weather to legally use an alternate?
If the airport has at least one navigational aid providing a straight in non-precision approach, precision, or circling approach the IFR minimums will be:
-A ceiling derived by adding 400 ft.
-A visibility derived by adding 1 sm.
If the airport has at least two navigational aids providing a straight in non-precision or precision approach to different suitable runways the IFR minimums will be:
-A ceiling derived by adding 200 ft to the highest ceiling of the two approaches used
-A visibility derived by adding 1/2 sm to the highest visibility of the two approaches used
Explain the purpose of Exemption 3585.
Exemption 3585 allows for planes to be dispatched to destination and/or alternate airports that in the TAF remarks sections with conditional phrases that the weather could drop below authorized weather minimums at the ETA. However, the main body of the TAF must meet authorized weather minimums at ETA.
When is a second alternate required when using Exemption 3585?
If either the destination or first alternate TAF contains conditional phrases indicating weather below authorized minimums.
What is the lowest weather allowable in the remarks section of the TAF forecast for the first alternate under Exemption 3585?
Must not be lower than one half of the visibility and ceiling of the weather Minimums specified in the Operations Specification listed for that airport. (Derived Minimums)
What is the lowest weather allowable in the remarks section of the TAF forecast for the destination under Exemption 3585?
Must not be lower than one half of the visibility for the instrument approach procedure expected to be used.
What must be added to a dispatch release for a flight operating under Exemption 3585?
In the remarks section of the release “Dispatched under Exemption 3585 S crew will monitor ACARS”
How does Mesa Airlines, Inc. define marginal conditions?
500 ft ceiling and 1 sm visibility above lowest suitable approach minimums
