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ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
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CFM56-5B TRAINING MANUAL
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STARTING SYSTEM
EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
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STARTING FUNCTION
The FADEC is able to control engine starting, cranking and ignition, using aircraft control data.
Starting can be performed either in Manual Mode, or Automatic Mode.
For this purpose, the ECU is able to command :
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Opening and closing of the Starter Air Valve (SAV),
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Positioning of the Fuel Metering Valve (FMV),
-Energizing of the igniters.
It also detects abnormal operation and delivers specific messages.
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ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
EFG
STARTING SYSTEM
Starting is initiated from the following cockpit control panels :
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The engine control panel on the central pedestal,
which has a single Rotary Mode Selector for both
engines and two Master Levers, one for each
engine.
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The engine man start panel on the overhead panel,
which has two switches, one for each engine.
- The Engine Warning Display (EWD) and the System
Display (SD) on the upper and lower ECAM’s,
where starting data and messages are displayed .
CFM56-5B TRAINING MANUAL
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
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STARTING SYSTEM
There are two starting procedures which correspond to two starting laws in the ECU logic :
1.
-The automatic starting process, under the full authority of the FADEC system.
2.
-The manual starting process, with limited
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