Dash One Sxn 7 Flashcards
What can happen to your avionics in flights near thunderstorms?
UHF radio become unstable, MFD flight instruments and EED fuel displays can distort and static can overcome transmissions to the aircraft
What should you do if UHF noise adversely affects reception when flying near a thunderstorm?
Switch to UPPER COMM or use the backup control panel. Standbys won’t be affected so fly off those
What’s the recommended penetration airspeed for turbulence and thunderstorms?
280 KCAS
EED fuel quantities can vary by how much during flight in thunderstorms?
200 lbs
When forecast conditions include thunderstorms or high cirrus clouds what should you do?
Set the UHF to backup control panel
What is a critical area to check for freezing?
Control hinge areas
Can you chip or scrape away ice?
No. It could damage aircraft surfaces.
How should you maintain taxi and maintain directional control when taxiing in ice/snowy conditions?
Use both NWS and braking, reduce taxi speeds and increase the normal interval between aircraft and reduce taxi time. Check for sluggish instruments while taxiing.
What parts of the aircraft have anti-icing or heating?
Engine anti-ice, pitot heat and canopy defog heat.
Do the inlet ducts have anti-ice/heat?
No
What must you do when icing conditions are unavoidable?
Place the pitot heat ON and turn canopy defog to full increase.
Engine damage may occur if as little as how much ice is ingested by the engine?
0.25 inch on inlet ducts
After suspected ice ingestion what should you do?
Operate the affected engine at the lowest possible RPM and avoid making abrupt or rapid throttle movements.
If you have done flight in icing conditions what must you do?
Note this in the 781 so that the engines can be inspected for ice damage.
When may engine inlet duct and/or guide vane icing may occur?
When the ambient temperature is at or slightly above freezing and either humidity is high or operating in visible moisture.