WX and Release Flashcards
What’re standard takeoff minimums?
RVR 5000 or 1SM for 2 Engines Operating
Where would you find if a runway requires takeoff mins greater than std.?
Jepp 10-9A
What is the lowest RVR PSA is approved to takeoff?
5/5/5
Where would you find a RWY min. RVR required for takeoff?
Jepp. 10-9A
When is a takeoff alternate required?
When reported visibility or RVR is below CAT I landing mins at the departure Airport.
FOM 16.20.1
The takeoff alternate requirements are what?
Within 1 hour from the departure airport based on Normal Cruise, Still Air, 1 Engine operating.
PSA: 300nm (1 Hour flying Mileage)
When is a destination alternate required?
Always, unless the wx is greater than 1,2,3 rule.
What’s the 1, 2, 3 rule?
+/- 1 hour from ETA, at least 2000ft. Ceilings, and Vis. at least 3SM.
If the destination has ONLY a GPS approach, can the alternate also have a GPS approach?
Yes, as long as there’s a ground-based navigational aid as well.
What types of approaches can be used for derived alternate minima?
Straight-in precision or non-precision approaches.
(If using the same airport with different approaches for derived wx the airport must have operational NAV facilities to different suitable runways)
What’s a suitable runway?
Wind direction and speed, closed rwys, non-operable approaches, lighting systems.
What does a different runway mean?
Different numbered runway which can be the opposite end of the runway.
Different Nav Facilities?
Different identifiers for ground or satellite-based.
When does derived wx have to be used?
Whenever an alternate airport is required for a departure or destination airport, the mins. must be derived.
How do you determine alternate Wx minima (Derived)?
One Nav: Ceiling plus 400’, Vis plus 1SM
Two Nav: Ceiling plus 200’ to the higher HAT, Vis plus 1/2SM to the Higher of the two mins.
*Must be to two different suitable runways
When are the destination and 1st alternate considered marginal?
Destination: WX Equals HAT or HAA OR the reported or forecast visibility equals the published requirements.
AND
1st Alternate: Ceiling or Visibility equals derived values
What does exemption 17347 allow?
A flight to be dispatched to a destination where there’s a TEMPO or PROB30 which forecasts the wx being below CAT 1 Wx Mins at the time of arrival as long as you add the 2nd alternate.
*Main body still needs to say the wx will be greater than required minima at time of arrival
What’re the criteria for 17347?
Destination: The main body needs to be at least equal to landing mins, and forecast visibility needs to be not less than 1/2 the required visibility.
1st Alternate: Main body equals full and forecasts 1/2 the required alternate min. vis. and ceiling
2nd Alternate: Forecast and main body wx meet full derived wx.
What’re the five items required to be on the release?
- ID # of aircraft (Registration)
- Trip number (FLT #)
- Statement of operations type (IFR)
- Departure, destination, and alternate airports
- Min. Fuel Supply (TO Fuel)
What is ramp tolerance?
+/- 500lbs. (RAMP= TAXI + TO Fuel)
What is PAYLD?
Max planned payload based on TO weight
MTOW - (BOW+FOB)
What’re dispatcher remarks?
Whenever add’tl fuel is added above the defaults for CONTINGY or TANKER OR when invoking 17347.
What’re you signing for on release?
Fit for duty
121.439 thru 121.445:
Recurrent:
Ground School
KV
LOE
MV
3 take-off landings within 90 days
Line check within 24 months under AQP
IPAD and EFB STAR updated