Data Collection And Recording

Question 1

What are the components of the CVR?

Answer 1

Recorder in shock resistant housing with ULB

cockpit area microphone

Control unit with AUTO/ON, TEST and ERASE switch

Question 2

What does the CVR record?

Answer 2

Voice transmissions from or to flight deck

Aural environment of flight deck

Voices of flight crew using a/c intercom

Voice/audio signals in crews headsets/flight deck speakers

Voices of flight crew using PA

Question 3

What does the FDR system comprise of?

Answer 3

Shock resistant housing with ULB

data interface and acquisition unit

Digital data recorder

Power control unit

EVENT button

Question 4

What parameters MUST be recorded by the FDR?

Answer 4

Time
Attitude, airspeed and pressure Alt
Heading
Normal acceleration
Power/thrust on each engine and lever position
Flaps/slats selection and position
Ground spoilers and speed brake selection

Question 5

What is ACMS?

Answer 5

Records data for management purposes

• maintenance intervention planning
• component life monitoring
• operator flight safety programme

Question 6

What are ACMS inputs?

Answer 6

A/C systems
FMS CDU
data management unit (DMU)
Digital recording unit

Question 7

What are ACMS outputs?

Answer 7

Flight deck printer

Digital data via acars/digital storage device