Volume I Flashcards
Runway
- Minimum Width____
- Minimum Length____
Runway
- Minimum Width 100’/148’ (100’ 221,227,228,229)
- Minimum Length 5000’
Alternate Airports
+/-_____hour _____or_____
_____or_____
Alternate Airports Required (1 2 3)
+/- 1 hour 2000’AFE or 1500’ Above Lowest Pub IAP
The greater of 3 SM, or 2 SM more than lowest
applicable visibility minimum.
Marginal Weather_____
Marginal Weather_____
Weather is considered “marginal” if the ceiling is within 100 feet, or the visibility is
within 1/2 mile of the minimums for that airport. When the weather conditions
forecast for the destination airport, based on CAT I minimums, and the first alternate
airport, based on derived alternate minimums, are marginal, then at least one
additional alternate must be designated.
Takeoff Alternate Required_____
Takeoff Alternate Required_____ 20.40.3
Airport below Cat 1 landing min.
T O Alt must be within 1hr (normal cruise, single engine, calm winds)
Max Distance 330 NM
Contaminated Runway
A runway where more than 25% of the runway length, within
the width being used, is covered by standing water or slush more than 1/8” or 3mm
deep, or that has an accumulation of snow or ice. A runway may also be considered
contaminated with less than 25% coverage if the contaminant is located prior to the
midpoint of the runway.
Wet Runway
A runway that has a shiny appearance due to a thin layer of water less
than 1/8” or 3mm covering 100% of the runway surface. If there are dry spots showing
on a drying runway with no standing water, the runway is not considered to be wet.
Slippery Runway
A runway that is considered to be more slippery than just a wet
surface. This would be a result of freezing rain and/or freezing temperatures.
Enroute icing conditions
When enroute icing conditions exist, the aircraft can experience ice
accumulation that will affect the approach climb limit weight which could
require a Flaps 3 landing configuration.
ALTERNATE AIRPORT WEATHER MINIMUMS
For airports with at least one operational navigational facility: (add 400 and 1)
400 to HAT or DH
1sm or 1600m to landing minimums
For airports with at least two operational navigational
facilities, each providing a straight-in approach procedure to different suitable runways: (add 200 and 1/2)
Add 200 ft to higher DA(H) or
MDA(H) of the two approaches
used.
Add 1/2 SM or 800m to the
higher authorized landing mini-
mum of the two approaches
used.
EXEMPTION 20144
Under Exemption 20144, a flight may be dispatched under IFR to a destination or an alternate airport when the
weather forecasts for either or both airport(s) indicate (by the use of conditional words such as “BECMG”, “PROB”,
or “TEMPO” in the remarks section) that the weather could be below minimums at the time of arrival, provided the
main body of the weather report and forecast for that airport indicate the weather (visibility for destination and
ceiling and visibility for the alternate) will be at or above minimums for that airport when the flight arrives. This
exemption is subject to the following conditions and limitations:
• Two alternates must be listed in the dispatch release, and the remarks section must show that the flight is
being dispatched under Exemption 20144.
• The conditional remarks on the weather reports or forecasts, or any combination thereof, must indicate that
the worst case weather conditions are forecast to be:
– For the destination airport, at least one-half the minimum visibility required for the instrument approach
procedure expected to be used;
– For the first alternate, not less than one-half the required alternate minimum ceiling and visibility for that
airport; and
– For the second alternate, at or above alternate minimums for that airport.
• The flight must be dispatched with at least sufficient fuel to:
– fly to the destination; then
– fly to and land at the most distant alternate, taking expected ATC routing into account; then
– fly for 45 minutes at normal cruising fuel consumption.
• The PIC must contact Dispatch while en route to obtain the most current weather for the destination and
alternates, and to coordinate the decision to continue to the destination or divert to an alternate.
• Each “BECMG” TAF that is “DETERIORATING” will be considered valid at the first minute of the becoming
period. Each “BECMG” TAF that is “IMPROVING” will not be valid until the last minute of the becoming period
of the TAF.
NOTE: Exemption 20144 is only authorized to be used on Domestic flights. This exemption is not available
for Flag and Supplemental operations
IFR TAKEOFF MINIMUMS
Standard IFR 1SM/5000RVR
Lowest Available. 5/5/5 RVR (HIRL and CL Lights)
CRO
GSC
Complaint Resolution Official
Ground Security Cordinator
DA.... DH.... AH.... CAT II CATIIIB Breaking action.... CAT III Auto Breaks Required
Decision Altitude CAT I (barometric)
Decision Height CAT II (radar height)
Alert Height CAT III B 300 RVR (CAT III DOUL)
CAT II CAT III Breaking action MEDIUM or better
CAT III <8000’ Medium 8000’ or greater Low or Medium
Alternative Airports
1 2 3 Ruel
Marginal WX
Flag
Method 2 drift down
Severe icing
T O alternate
R Nave only airport
Supplemental dispatched flight
Exemption 20144 (three alternates)
Exemption 20295 (Cat I II III)
RNAV (GPS RNP) only
Must have a non RNAV only atlternate airport
