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Repair column.
Trouble Possible Cause Repair
Fuel leaks from the fuel
distribution manifold drain.
The internal diaphragm of the
fuel distribution manifold has
failed.
Replace the fuel distribution
manifold.
Refer to the TCM IO-240B
Maintenance Manual.
Fuel leaks from the fuel pump
drain.
The internal seal of the fuel
pump has failed.
Replace the fuel pump.
Refer to the TCM IO-240B
Maintenance Manual.
Power Plant
DA20-C1 AMM
Page 102
19 Dec 1997 71-70-00 Doc # DA201-C1
Rev.0
Intentionally left blank
DA20-C1 AMM
Power Plant
Doc # DA201-C1
Rev. 9 71-70-00 Page 201
29 Apr 2004
MAINTENANCE PRACTICES
1. General
These maintenance practices tell you how to remove and install the engine drains.
Refer to the DA20-C1 Flight Manual for engine run instructions/data.
WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE PROPELLER.
IF YOU DO THIS, A DAMAGED COMPONENT CAN CAUSE THE
ENGINE TO START. THIS CAN CAUSE DEATH OR INJURY TO
PERSONS.
WARNING: DO NOT GET OIL ON YOU. OIL CAN CAUSE SKIN DISEASE.
WARNING: DO NOT GET FUEL ON YOU. FUEL CAN CAUSE SKIN DISEASE. DO
NOT ALLOW FIRE NEAR FUEL. FIRE BURNS AND CAN CAUSE
INJURY TO PEOPLE AND DAMAGE TO EQUIPMENT.
2. Remove/Install The Fuel Distribution Manifold Drain
A. Remove The Fuel Distribution Manifold Drain
Detail Steps/Work Items Key Items
(1) Remove the engine cowlings. Refer to Chapter 71-10
(2) Loosen the hose clamp on the fuel drain
outlet assembly. Pull the hose from the
assembly.
(3) Remove the drain pipe from the fuel
distribution manifold.
(4) Carefully pull the drain pipe through the aft
baffle out of the rubber grommet. Remove
the pipe.
Power Plant
DA20-C1 AMM
Page 202
24 Mar 1999 71-70-00 Doc # DA201-C1
Rev.1
B. Install The Fuel Distribution Manifold Drain
Detail Steps/Work Items Key Items
(1) Examine the drain pipe. Make sure the inner
bore of the pipe is clear.
(2) Carefully put the drain pipe through the
rubber grommet in the aft baffle.
(3) Install the drain pipe to the fuel distribution
manifold.
(4) Push the drain pipe onto the fuel drain outlet
assembly. Install the hose clamp.
(5) Install the engine cowlings. Refer to Chapter 71-10
3. Remove/Install The Cylinder Drain
Note: This procedure removes and installs the check-valve, rigid pipe and rubber hose
as an assembly. Refer to the Maintenance Manual for the engine for data about
the TCM engine cylinder drain.
A. Remove The Cylinder Drain
Detail Steps/Work Items Key Items
(1) Remove the cowlings from the airplane. Refer to Chapter 71-10
(2) Loosen the hose clamp on the fuel drain
outlet assembly. Pull the cylinder drain hose
from the assembly.
(3) Release the fuel drain bracket below the
bottom left shock-mount.
(4) Disconnect the check valve from the “T”
piece connector below the engine. Remove
the drain pipe and check valve assembly.
DA20-C1 AMM
Power Plant
Doc # DA201-C1
Rev. 10 71-70-00 Page 203
23 Jun 2004
B. Install The Cylinder Drain
Detail Steps/Work Items Key Items
(1) Examine the drain pipe. Make sure the inner
bore of the pipe is clear.
(2) Put the drain pipe and check valve assembly
in position below the engine. Install the
check valve to the “T” piece connector.
(3) Install the drain pipe to the fuel drain bracket
below the bottom left shock-mount.
(4) Push the rubber hose onto the fuel drain
outlet assembly. Install the hose clamp.
(5) Install the engine cowlings. Refer to Chapter 71-10
4. Remove/Install The Fuel Pump Drain
A. Remove The Fuel Pump Drain
Detail Steps/Work Items Key Items
(1) Remove the engine cowlings. Refer to Chapter 71-10
(2) Loosen the hose clamp on the fuel drain
outlet assembly. Pull the fuel pump drain
hose from the assembly.
(3) Release the fuel drain bracket below the
bottom left shock-mount.
(4) Disconnect the drain pipe from the injection
pump below the engine.
On aircraft with an altitude compensating
fuel pump, disconnect the ambient pressure
reference line from the fuel pump.
Remove the drain pipe assembly.
Power Plant
DA20-C1 AMM
Page 204
23 Jun 2004 71-70-00 Doc # DA201-C1
Rev.10
B. Install The Fuel Pump Drain
Detail Steps/Work Items Key Items
(1) Examine the drain pipe. Make sure the inner
bore of the pipe is clear.
On aircraft equipped with an altitude
compensating fuel pump, examine the
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