Icing

Question 1

APU starting precaution OAT -15*C

Answer 1

Ground power should be used to start APU

Question 2

Alignment time for IRS OAT -15*C

Answer 2

15minutes

Question 3

Clean aircraft concept

Answer 3

All components of the plane that contributes to lift or aerodynamics must be cleared of snow/ice/frost

Question 4

Upper fuselage limit of contamination

Answer 4

hoar frost

Thin crystalline that can be seen through underneath

Question 5

Wing tank area frost limit

Answer 5

3mm

Question 6

Before applying anti ice again

Answer 6

must first de ice with hot fluid mixture

Question 7

Can deice begin with engines/APU running

Answer 7

yes or stopped. but mayn’t start engines/apu during application

Question 8

Try to stay below what time during deice

Answer 8

20min for passenger comfort

Question 9

-5*C OAT or below

Answer 9

snow or freezing rain may melt and refreeze on probes. have ground staff check before take off.

Question 10

Time after anti ice before starting APU BLEED

Answer 10

5minutes

Question 11

icing condition

Answer 11

OAT or TAT 10*C or below

visible moisture an form (Fog with 1 mile visibility or less)

surface of snow/standing water/slush/ice

SAT of 40*C or above even during descent

Question 12

Airframe icing

Answer 12

shown by windshield wipers or ice indicator

WING ANTI ICE ON

Question 13

Ice accretion on non heated structure

Answer 13

CLEAN: VLS +15kts

CONF all: VLS +5kts

Question 14

Ice accretion non heated parts (WING ANTI ICE INOP)

Answer 14

VLS +10 or G DOT

Question 15

Severe icing

Answer 15

5mm

Question 16

take off not RECOMMENDED

Answer 16

icy runway

runway

Question 17

Fan shedding

Answer 17

Below 1*C or less icing condition.

50% N1 for 10s every hour

Question 18

Core ice shedding

Answer 18

freezing fog + idle more than 45minutes including taxi in from previous sector.

Question 19

Down side of applying deice/antice fluid in cold dry snow

Answer 19

Cold dry snow may stick on fluid and wing must be clean before take off

Question 20

Type of fluid not used

Answer 20

type 3

Question 21

Repeated application for type 2 or 4 threat

Answer 21

may reside in aerodynamic quiet area. which may refreeze and interfere with aircraft systems and controls

Question 22

HOT values not covered for

Answer 22

HAIL

MODERATE AND HEAVY freezing rain

HEAVY snow

Question 23

Low HOT

High HOT

Answer 23

Moderate precipitation

Light precipitation

Question 24

Inspection when

Answer 24

entering the Low HOT 5min prior to take off from the cabin of upper wing surface

Question 25

Check

Answer 25

out of the HIGH HOT

Question 26

Type 4 special allowance

Answer 26

Mainly light to moderate ice pellets with different conditions If weather conditions improve within the table time, take off permitted within 90 minutes after application of fluid Certain condition with ice pellets must have OAT at or ABOVE during the 90minutes wait

Question 27

Take off/approach/landing prohibit

Answer 27

TO/APPR/LDG Moderate freezing drizzle or rain(=+FZDZ/RA) ANY HAIL (-GR/GR/+GR) TO HEAVY SMALL HAIL(+GS) Moderate ICE pellets + other precipitation other than fog or mist(PL+XXX) Heavy Pellets(+PL)

Question 28

Wing anti ice area

Answer 28

4 outboard slats Test 30s on ground

Question 29

EAI

Answer 29

takes air from HP

Question 30

ICE NOT DET

Answer 30

130s no ice detected with EAI on

Question 31

TOD fuel check and procedure

Answer 31

12.9 disregard Fuel only transfers when from outer to inner when inner tank is 3500-4000kg Outer tank transfer closed 5 min after outer empty Outer tank colder -15*C OUTER TK XFEE ON When outer tank drained OUTER XFER OFF

Question 32

EO acceleration cold weather

Answer 32

Considered in RTOW below 15*C ISA

Question 33

Precaution of moving any flight control

Answer 33

Confirm free of ice before moving

Question 34

-15*C cockpit display

Answer 34

may not be available

Question 35

After landing SLAT/FLAP precaution

Answer 35

do not retract, after engine shut down have ground crew confirm clear of ice. then use electric pump to retract

Question 36

When to remove APU battery

Answer 36

-15*C and 12Hours on ground.

Question 37

Frost reduction on upper wing

Answer 37

Transfer outer tanks - FROST UPPER WING EXPECTED - Fuel remains in outer tanks after landing - refueling planned

Question 38

Active frost initial temperature

Answer 38

0*C

Question 39

Taxi precaution

Answer 39

- 10kts - avoid large tiller inputs - dont set flaps or slats until at holding point to avoid slush or snow into controls. - fan ice shedding before take off

Question 40

Holding in icing condition

Answer 40

remain clean config

Question 41

Barometer and FPA

Answer 41

Actual altitude Lower than indicated actual FPA lower than indicated

Question 42

Directional control

Answer 42

REV IDL BRAKE release Use rudder

Question 43

MSA correction

Answer 43

ISA -15*C around 10%

Question 44

0*C correction for

Answer 44

DA/IF/IAF/FAF/GA ALT/CIRCLE MIN/GS CHECK/

Question 45

When altitude corrections applied

Answer 45

can't use FINAL APP

Question 46

LOUT for Type 1,2,4

Answer 46

type 1 10*C above freezing point | type 2,4 7*C above freezing point

Question 47

Snow fall intensity table reference

Answer 47

DAY/NIGHT/TEMP/VIS not RVR

Question 48

destination weather compared to alternate

Answer 48

Moderate freezing rain or drizzle then alternate must have nothing

Question 49

Fuel temperature

Answer 49

-44*C below FL300 -54*C above FL300 MAX 55

Question 50

RCAM landing

Answer 50

PERF in QRH

Question 51

Crosswind in contaminated runways

Answer 51

LIM GENERAL

Question 52

Contaminated TAKE OFF info

Answer 52

QRH CP AWP