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Refer to the Lycoming Operator’s
Manual.
(12) Install the engine cowlings. Refer to Section 71-10.
(13) Do an engine test. Refer to the Airplane Flight Manual.
B. TAE 125 Diesel Engine
Refer to the engine manufacturer.
AIRCRAFT
DA 40 Series
AMM
Time Limits and
Maintenance Checks
Doc # 6.02.01
Rev. 5 05-50-00 Page 7
20 Sep 2007
5. Lightning Strike
A lightning strike usually enters the airplane at one point and leaves the airplane at another point.
These points are called "attachment points". You usually find these points at the extremities of the
airplane. You will often find the most damage to the airplane occurs at the attachment points. There
can be more than 2 attachment points.
When a lightning strike is reported you must do the inspection procedure at sub-paragraph D before
the next flight.
A. Group 1 Damage
Group 1 damage is the direct damage caused by the lightning strike. To find this damage you must
carefully examine all the external surface of the airplane. Look specially for burn marks, holes,
discoloration or other physical damage. If you find this damage you must remove panels or
equipment to look for damage on the inside of the airplane. Look specially around the area of the
external damage.
You must also examine the airplane lightning protection system. Look specially for signs of heat
damage or distortion to the conduction tubes and bonding strips. Also look for heat damage in the
structures around the conduction tubes and bonding strips. Refer to Section 51-80 for data about
the lightning protection system.
B. Group 2 Damage
Group 2 damage is the indirect damage caused by the lightning strike. It is mostly caused by the
electromagnetic fields associated with lightning strikes. The electromagnetic fields can induce
temporary voltages into the wiring system. These temporary voltages can cause damage to the
electrical and electronic components of the airplane. Refer to the Wiring Diagrams for data about
the electrical wiring.
Note: If you find any lightning damage you must make a record of the damage
and ask Diamond Aircraft for advice before you repair or operate the
airplane.
AIRCRAFT
Time Limits and
Maintenance Checks
DA 40 Series
AMM
Page 8
20 Sep 2007 05-50-00 Doc # 6.02.01
Rev. 5
C. Equipment
Item Quantity Part No.
Bonding tester. 1 Commercial
D. Lightning Strike Inspection
Detail Steps/Work Items Key Items
(1) Examine the surface of the complete fuselage
assembly. Look specially in these areas:
S Propeller and spinner.
S Exhaust pipes.
S Engine breather.
S Canopy handles.
S Antennas.
S Static discharge wicks.
S Vertical fin tip.
S Rudder.
S Lower fin.
If you find any damage you must
examine the airplane internally, specially
in the area of the external damage.
Make a record of the damage you find
and ask Diamond Aircraft for advice
before you repair or operate the
airplane.
(2) Examine the surface of the left wing for lightning
damage. Look specially in these areas:
S Pitot head.
S Static discharge wicks.
S Wing tip.
% S Strobe lights.
S Wing tip light assembly.
S Wing trailing edge.
S Aileron trailing edge.
S Flap trailing edge.
S Aileron horn.
S Flap horn.
If you find any damage you must
examine the airplane internally, specially
in the area of the external damage.
Make a record of the damage you find
and ask Diamond Aircraft for advice
before you repair or operate the
airplane.
AIRCRAFT
DA 40 Series
AMM
Time Limits and
Maintenance Checks
Detail Steps/Work Items Key Items
Doc # 6.02.01
Rev. 5 05-50-00 Page 9
20 Sep 2007
(3) Examine the surface of the right wing for
lightning damage. Look specially in these areas:
S Wing tip.
S Static discharge wicks.
% S Strobe lights.
S Wing tip light assembly.
S Wing trailing edge.
S Aileron trailing edge.
S Flap trailing edge.
S Aileron horn.
S Flap horn.
If you find any damage you must
examine the airplane internally, specially
in the area of the external damage.
Make a record of the damage you find
and ask Diamond Aircraft for advice
before you repair or operate the
airplane.
(4) Examine the surface of the horizontal stabilizer
for lightning damage. Look specially in these
areas:
S Horizontal stabilizer tip.
S Static discharge wicks.
S Trailing edge.
S Elevator trailing edge.
S Trim tab.
If you find any damage you must
　
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