TSA Winter Ops Flashcards
When is Cold Wx Preflight required?
If OAT is below 10C
Anti-Ice fluids
Type 2 & Type 4 (Long Holdover time)
Special emphasis on what items in cold Wx preflight?
Upper wing, tail surfaces and attached surfaces
Landing gear doors, actuators
Steering components
Pitot/static system, AOA vanes and fuel Tank vents
Pack inlets and exhaust
APU, Engine inlets
What are the methods of recognizing aircraft surface contamination?
- Visual walk around
- Tactile Inspection
- Pre-Takeoff Check
- Pre-Takeoff contamination Check
- Post Deice Visual Inspection
A Tactile Check is required
OAT < 6 C Can't be ascertained that wind fuel temp is above 0 C AND - Visible moisture - Water on the wing - diff. Between temp. & dew is 3 C or < - Frost - Upon capt. Request
When is “Pre-T/O Contamination Check” is required?
Once Hold over time is exceeded, Within 5 min of Take-off.
If unable then need to return for further deicing
When does hold over time being?
Beginning of Second Application
What Parts of the plane are Heated with Hot Air?
Wings, Tail, Engine Lip
- Ground Icing Conditions
Less than 10°C and frozen precipitation falling
Type 1
50/50 mix with water. Applied Hot. Color: Orange to Pink. (Deice and anti ice)
Type 3
100% concentration, Applied Hot. Color: Pale Straw (Deice, anti ice)
Type 2
100% concentration. Wings, tail & top of fuselage only. Cleared by 130 kts. Color: Clear or amber. ( Anti Ice)
Type 4
100% concentration. Wings, tail & top of fuselage only. Cleared by 130 kts. Applied Cold. Color: Green ( Anti Ice)
What are the 2 types of Deicing/Anti-Icing operations?
(1) D/A in Normal Conditions
(2) D/A in Ground Icing Conditions
D/A Aircraft Configuration
(1) Set Parking brake
(2) Flaps 0, ailerons neutral
(3) Trim full nose down
(4) Gust lock set
(5) All windows, doors, em. Exits are closed
(6) Off gate - Engines idle/ bleeds&a packs off/ APU off
(7) On gate - Engines off/ bleeds & packs off/ APU on (with GPU)
Icing Condition on Ground, Air
Ground:
10 C SAT or less in visible moisture ( precip. Or Vis
Before Take-off check in icing
Actual icing or forecast icing exist at or < 1500’
(1) Engine Bleeds ON
(2) APU bleed OFF
(3) Cross bleed AUTO
(4) Packs OFF
(5) Ice dec button ENG or AUTO
Holdover Time Moisture Content
Dry: use high end of range
Medium: use average of range
Wet: use low end of range
Icing Conditions on the Ground
10 C SAT and Below with
(1) Visible moisture
(2) Contaminated Surfaces
(3) Ceiling of 1500 AGL or Below
Tactile check can be done
In normal icing conditions
In what WX is the flight prohibited?
(1) mod to heavy freezing rain
(2) hail
(3) heavy ice pallets
(4) Severe Icing
Cold Engine vs Cold Wx Engine start
Cold Engine - Engine that was shut down for more than 90 min.
Cold Wx Engine start - when SAT below 5 C and cold engine ( Start with Ignition ON )
Don’t turn the bleeds and packs ON for how many minutes after De-icing?
For 3 minutes
Does Anti-ice fluid must to be at 100%?
Yes
What is a Pre-Take Off contamination check?
Done by authorized personal when the holdover time has been exceed. If the aircraft is free of contamination the takeoff roll must be initiated within 5 min.
What holdover charts do we use?
Composite wing, 90%
