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Note: To return to normal functioning, switch the UTC selector to RUN position.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
CLOCK - CONTROLS AND INDICATORS
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FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
FLT RECORDERS - FLIGHT DATA RECORDING SYSTEM
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FCOM 19 AUG 10
DESCRIPTION
Applicable to:
The Flight Data recording System, which records the mandatory parameters, consists of the following
components :
A Flight Data Interface ‐ and Management Unit (FDIMU)
‐ A Digital Flight Data Recorder (DFDR)
‐ A three-axis Linear Accelerometer (LA)
The FDIMU collects and processes parameters from the SDACs, DMCs, FWCs, FCDCs, BSCU, the
DFDR event pushbutton, the GND CTL pushbutton and the Clock.
It stores the mandatory flight parameters in the DFDR.
The DFDR can store the last 25 h data, at least. It stores this data on a fireproof and shockproof
device. An underwater locator beacon is attached to the DFDR.
The linear accelerometer measures the acceleration of the aircraft along each of the three axes.
The QAR is an optional recorder that stores the same data as the DFDR. However the QAR is more
accessible for the maintenance crew.
The recording system is automatically active :
‐ On the ground, during the first five minutes after the aircraft electric network is energized.
‐ On the ground, after the first engine start.
‐ In flight (whether the engines are running or not).
On the ground, the recording system stops automatically five minutes after the second engine shuts
down.
On the ground, the crew can start the recording system manually by pressing the GND CTL
pushbutton.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
FLT RECORDERS - FLIGHT DATA RECORDING SYSTEM
A318/A319/A320/A321 FLEET DSC-31-60-10 P 2/4
FCOM 19 AUG 10
DESCRIPTION
Applicable to:
,
,
MSN,,,,
The Flight Data recording System, which records the mandatory parameters, consists of the following
components :
‐ A Flight Data Interface and Management Unit (FDIMU)
‐ A Digital Flight Data Recorder (DFDR)
‐ A three-axis Linear Accelerometer (LA)
The FDIMU collects and processes parameters from the SDACs, DMCs, FWCs, FCDCs, BSCU, the
DFDR event pushbutton, the GND CTL pushbutton and the Clock.
It stores the mandatory flight parameters in the DFDR.
The DFDR can store the last 25 h data, at least. It stores this data on a fireproof and shockproof
device. An underwater locator beacon is attached to the DFDR.
The linear accelerometer measures the acceleration of the aircraft along each of the three axes.
The QAR is an optional recorder that stores the same data as the DFDR. However the QAR is more
accessible for the maintenance crew.
The recording system is automatically active :
‐ On the ground, during the first five minutes after the aircraft electric network is energized.
‐ On the ground, after the first engine start.
‐ In flight (whether the engines are running or not).
On the ground, the recording system stops automatically five minutes after the second engine shuts
down.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
FLT RECORDERS - FLIGHT DATA RECORDING SYSTEM
A318/A319/A320/A321 FLEET DSC-31-60-10 P 3/4
FCOM 19 AUG 10
On the ground, the crew can start the recording system manually by pressing the GND CTL
pushbutton.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
FLT RECORDERS - FLIGHT DATA RECORDING SYSTEM
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FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
FLT RECORDERS - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-31-60-20 P 1/2
FCOM 19 AUG 10
OVERHEAD PANEL
Applicable to: ALL
(1) GND CTL pushbutton (springloaded)
ON : The Cockpit Voice Recorder (CVR) and the Flight Data Recorders are active. The
ON light is on.
AUTO : The Cockpit Voice Recorder (CVR) and the Flight Data Recorders are active,
according to the logic.
The system automatically switches from ON to AUTO at the first engine start, and also in case
of an electrical transient.
PEDESTAL
　
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