Turbulence Flashcards
How is turbulence created?
Turbulence results when an aircraft flies through air which has been disturbed, usually by adverse weather, or certain types of cloud formation, or if it flies into the wake of another aircraft
At what points of flight can turbulence occur?
From the take-off stage through to the approach and landing.
How can turbulence be anticipated?
- Weather reports
- On-board radar detecting cloud formations which might produce turbulence
- Reports of turbulence received from other aircraft ahead on the same route.
What happens before entering an area of anticipated turbulence?
- Fasten seat belt signs go on
- Cabin crew can secure equipment and themselves if required.
How can unanticipated turbulence occur in apparent clear air? What is it referred to as?
Irregular atmospheric conditions or swirling which results in the aircraft jolting.
It is referred to as Clear Air Turbulence (CAT)
What happens if the FSB signs are left on for a prolonged period of time?
The FSM should liaise with the flight crew to determine if they are still required.
What should be done at all times to prevent injury from unanticipated turbulence
- Latch galley cupboards, air larders and carts after each use.
- Restow carts, air larders, and equipment in their stowages after each use.
- Secure the galleys immediately after each use.
- Minimise the amount of service equipment left out on galley surfaces.
What should be done at all times to prevent injury during unanticipated turbulence between services?
- Upper class: nothing is permitted to be on galley surfaces.
- Premium and economy: One box containing ice, juices, water, minerals and plastic glasses is allowed to remain out in each galley.
What is the procedure for anticipated turbulence?
- FSM advises all CCMs of any turbulence info from the captain pre-flight.
- When FSB signs are on in the pre-turbulent area, stop services, check all passengers are seated with seatbelts on and infants are removed from bassinets.
- Secure loose items in galleys and bar unit
- If moderate/severe turbulence is anticipated prioritise duties on the time available. (stow large items and carts first then hot liquids then other equipment)
- Pass cabin secure check to FSM/CSS.
What are the conditions inside the aircraft when there is light turbulence?
- Liquids are shaking not splashing
- Carts can be moved with little difficulty
- Passengers may feel slight strain against seatbelt
What are the conditions inside the aircraft when there is moderate turbulence?
- Liquids are splashing out of cups
- Carts are difficult to move
- Difficult to walk
- Difficult to stand without holding something
- Passengers feel definite strain against seat belt
What are the conditions inside the aircraft when there is severe turbulence?
- Items are falling over or lifting off of the floor
- Unsecured objects are tossed about
- Service and walking is impossible
- Passengers forced violently against seatbelt.
When there is light turbulence what happens to service?
It can continue with caution BUT you must ensure carts and galley equipment not in use is secured.
When there is moderate turbulence what happens to service?
It is discontinued and the following must be done:
1. Ensure carts and galley equipment is secured
2. If it is expected to be short turbulence, put brakes on the cart- for extended stow the carts in the galley.
3. Cabin crew to be seated with full harness once duties are complete.
4. Check seatbelts on the way back to your seat.
When there is severe turbulence what happens to service?
Discontinued immediately
1. set the brakes on all carts and wedge at current location
2. Place hot beverage containers on the floor
3. Take nearest available seat and fasten seatbelt(on passenger if needed)
4. Hold on to cart if possible
