B777 - Cold Weather Flashcards

1
Q

Contaminated Runways

A

Assume Temp Derate NOT PERMITTED

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2
Q

TakeOff On Contaminated Runway NOT ALLOWED when

A

1/2” slush/wet snow/water

4” dry snow .

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3
Q

Icing Conditions

A

Ground OAT or TAT<=10C
In vis moisture or <1600m
Or standing water present

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4
Q

Engine TAI

A

On after both started

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5
Q

Taxiing

A

Flaps UP

Engine Runup <= 3C

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6
Q

Engine Runup

A

50% N1 for 1 sec
Per hour
If done at TO vib < 4

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7
Q

Fan Ice Removal
In-Flight
(<70% + vib)
One at a time

A

Near Idle then 70%
for 10-30sec
Repeat 15 mins

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8
Q

Exterior Inspection

TO permitted

A

3mm lower surface fuel frost. But LE, controls, upper wing clear of snow, ice, frost

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9
Q

Exterior Inspection

TO permitted

A

With hoar frost. Can see paint.

But inlets, vents, gear doors free of snow/ice.

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10
Q

Cold Temperature Altimeter Correction

FCOM SP.16.10

A
  • Round up nearest 100;
  • not for ATC radar vect;
  • FL’s;
  • 0 deg or abv mnm temp.
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11
Q

Wet Runway

A

Shiny

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12
Q

Contaminated Runway

A

> 25% >3mm or slush or snow, ice

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13
Q

Damp

A

Not shiny.

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14
Q

If precip on Aircraft then frost can form

A

-2 - + 15 C

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15
Q

Fluid Types

B777 Approved

A

I, II, IV

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16
Q

Type I

A

Single step or first of two step

17
Q

Type I

A

Freeze point at least 10C below ambient

18
Q

Type II,IV

A

Thicker. May leave residue. Longer holdover. Clean with hot type I

19
Q

Holdover

A

Consult Quick Reference on Extranet VAI-FO-032

20
Q

Holdover

A

Where pre-takeoff visual inspection: do within 5min of TO

21
Q

Holdover

A

Starts as recorded on M/L

ie Start of Type I or start of 2nd if type II, IV