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
DEFINE TO Fuel:
Min. fuel with which a flight can take the RWY for departure (Brake Release Fuel)
What totals up for TO FUEL:
BURN + RESERVE + ALT + CONTINGY
How is ramp fuel calculated?
TO Fuel + Tanker + Taxi
What is CONTINGY FUEL?
MCF + Hold
What is the minimum CONTINGY FUEL?
700 = 937 900 = 1082
170lbs of missed in 700
222lbs of missed in 900
What is TANKER fuel?
Extra fuel for ground delays
How is reserve fuel calculated?
No less than 45 minutes, based upon long-range cruise power setting at FL250
What is PYLD?
(Pax Booked times Seasonal Wt.) + (1.5 bags per pax times standard checked baggage weight)
What is the difference between PYLD and PAYLD?
PYLD is planned weight. PAYLD is the max weight flight can carry.
How would you find a fuel diagram?
POH Chapter 9 - performance - fuel planning
How long is a flight release valid?
Remains valid until modified.
How long is your flight plan valid for?
2 Hours
How much can actual QNH and PQNH differ?
-.10”
What doesn’t MFPTW consider?
MFPTW doesn’t include max runway structural TO weight
What’re the remarks section for?
Any items which could degrade performance and containment levels
Purpose of ACARS and NOTES section?
To help with NOTAMS that shorten RWY available, and any extra info.
Difference between simple special and complex special?
Simple Special: Turn below 1000ft/Single engine std. operating procedures cannot be used due to obstacle requirements.
Complex Special: Engine Failure procedure too complex for the simple special table.
When do we use the PTOW plus 1000 number?
When calculated TO Weight exceeds MTOW for planned TO data.
When would 10kts. TW Data be used?
Any time there’s any TW component.
What do the dashed lines mean in the TLDR?
No data is available and RWY may not be used.
When would we use cost index or econ charts?
When the ACARS is inoperative, or no communication in flight.
What does the / mean?
Used to indicate planned conditions by the dispatcher.
What constitutes low vis?
Vis less than 3/4 SM or 4000RVR
What is N1 for?
Go around N1 thrust setting.
When do we use performance numbers for NO THR REV CREDIT vs THR REV CREDIT?
NO THR REV CREDIT: Landing without thrust reverse is anticipated.
THR REV CREDIT: Thrust reversers are needed.
What is the minimum weather for a CAT II approach with just a TDZ report?
1400 RVR
What is the minimum RVR required for a CAT II with all three RVR reports?
12, 6, 3
Far-end can go down to 0 RVR
What’s the minimum weather a high time CA can dispatch to according to exemption 17203?
Airplane equipped with A/P
Trained to CAT II
Cannot be lower than all three conditions:
1. RVR 4000 or 3/4 mile
2. Crosswind exceeding 15kts
3. Braking action less than “Good”
For a CAT II MID RVR may be substituted for Rollout if?
Rollout RVR is 600 RVR.
What do the limit codes on the TLR mean?
C-Climb
B-Brakes
T-Tires
F-Field
A-Max AFM chart weight
How many RVRs are required for takeoff below 1600RVR?
2 RVRs required refer to FOM 10.4.3
Takeoff Legality Table, Jeep 10-9A
When are you required to hold short of the ILS Critical Area
800’ 2SM
What is MFPTW?
BURN+MLDW
What is the seasonal weight for pax and standard checked bag?
Pax
Winter: 203
Summer: 198
Baggage Weight
Standard Checked Bag: 34lbs.
Min Alternate? Min Reserve?
Min Alt: 1500lbs
Min reserve (700/900): 2100/2200lbs
Min tanker?
330lbs. 42 mins of APU and 7 mins
