Winter Ops Flashcards
Is frost permitted on the fuselage for TO?
Yes, a light coating of frost on top of the fuselage
Is frost permitted on the wing for TO?
Up to 3mm on undersurface of wing due to fuel cold soaking
Is TO permitted in freezing rain?
Only light freezing rain
How much of a runway must be covered to be considered contaminated?
25%
What is the additional burn due to A/I being on?
1-6%
If one de-icing truck is used for de-icing, what must be recorded in the tech log?
Which wing was treated first
How should the eng intakes be de-iced?
Manually or using hot air
What is the min runway width?
45m - narrow rwys not permitted
What is the change to the TO brief on a contaminated rwy?
Do not stop for minor deficiencies
What is the screen height from a contaminated rwy on dep?
15 ft
With ice accretion what is the min speed when clean?
VLS + factor dependent on where ice is present
How does eng A/I affect taxi speed?
Can increase taxi speed and ground idle rpm is increased
Can you taxi on one eng with slippery or contaminated surfaces?
No
When must the ground ice shedding procedure be applied?
When taxiing in icing conditions below +1°C
Where are the procedures for preparing the a/c for cold soak and draining the water?
In FCOM PRO SUP
What needs to be logged if exposed to freezing fog.
Times - requirement from RR for Eng blades
What must be done to the accel alt if the OAT is lower than the lowest figure on the RTOW table?
Add a factor. In the FCOM
Below what temp is ground power required for an APU start?
-15ºC
What fluid has very limited anti-ice characteristics?
Type I
What must be done to the holdover time if flaps/slats are extended prior to taxi?
Reduce to 76% of HOT from table
Can the engines be on during a de/anti-ice?
Yes but only at idle
What check should be completed after a de/anti ice application?
A flight control check
If flaps are not going to be extended, are the after engine start checks still conducted?
Yes
When is the mandatory to conduct a PCI?
If the holdover time has elapsed or if heavy snow is experienced.
How much Jet A will contaminate a tank mixed with JET A1?
Above 10% will be considered Jet A
What is the definition of icing conditions on the ground?
OAT or TAT less than +10ºC
Vis moisture such as cloud or fog with less than 1nm vis.
Standing water, rain or snow
What might the radalt do on contaminated surfaces?
Give false indications
What is the max speed for the windscreen wipers?
230kt
Who should conduct landings on contaminated runways?
Captain
If there is ice accumulation on the wings, what should not be done after landing?
Flaps should not be retracted.
In a cold weather app with FPA what glide angle will be required?
Greater than normal
What is the definition of severe ice accretion?
Airframe icing reaches 5mm or more
