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EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
EFG
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EFG
POWER PLANT DRAINS
EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
EFG
POWER PLANT DRAINS
Lines are provided on the engine to collect waste fluids and vapours that come from engine systems and accessories and drain them overboard.
The system consists of a drain collector assembly (not shown), a drain module and a drain mast.
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CTC-201-270-00
EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
EFG
POWER PLANT DRAINS
Drain collector assembly.
The drain collector assembly is attached to the aft side of the engine gearbox.
It is composed of 4 drain collectors with manual drain valves and 2 holding tanks.
The drain collectors enable leakages to be collected separately from 4 seals:
- Fuel pump.
-IDG.
- Starter.
-Hydraulic pump.
Each collector is identified with the accessory seal pad to which it is connected.
The manual drain valves are installed at the bottom of each collector, enabling the source of leakages to be found during troubleshooting.
The collector retains fluids until it is full, then the overflow goes to 2 tanks, called the fuel/oil holding tank and the oil/hydraulic holding tank. The first receives the fuel pump overflow and the second receives the IDG, starter and hydraulic pump overflows.
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EFFECTIVITY ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
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71-70-00 Page 5
ENGINE SYSTEMS Jan 03
CFM56-5B TRAINING MANUAL
EFG
POWER PLANT DRAINS
Drain module.
The drain module is directly attached to the aft side of the engine gearbox and supports the drain mast.
It receives the overflow from the drain collector assembly. A valve pressurizes the holding tanks and enables fluid to be discharged overboard through the drain mast.
It also receives fluids that are discharged directly overboard through the drain mast:
- The oil tank scupper.
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