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2. 3. 4. 5.  Examine the engine for oil/fuel leaks. Clean the engine and engine compartment. (Refer to Section 12-30). Remove the oil drain plug. Drain the engine oil into an approved container (with the engine warm). (Refer to Section 79-00). Examine the oil suction screen: S Remove the oil suction screen from the oil sump. S Look for particles of metal. If the screen contains particles of metal, refer to the Lycoming Maintenance Manual. S Replace gasket. S Install the oil suction screen to the oil sump.  X X  X X X X  X X X X  X X X X 

Doc # 6.02.01 Page 7
Rev. 4 09 Jan 2003

05-20-00
Maintenance Checks
AMM

%

DA 40 Series

100 hr items marked X* apply to US registered airplanes only  Interval 
Inspection Items (Lycoming engine only)  50  100  200  1000  Time  Initials 
6. 7. 8.  Install the drain plug. S Tighten the drain plug. Torque: 18 Nm (160 in.lb). S Lock the drain plug with safety wire. Replace the oil filter. (Refer to Section 79-00). Cut open the used oil filter. Look for particles of metal. If the filter contains particles of metal, refer to the Lycoming Maintenance Manual.  X X X  X X X  X X X  X X X 
CAUTION: YOU MUST USE ENGINE OILS THAT AGREE WITH THE SPECIFICATION IN LYCOMING SERVICE INSTRUCTION NO. 1014. 
9.  Fill the engine with new oil.  X  X  X  X 
Note: Drain the engine oil and fill with straight oil 25 hours after a new engine is installed. Change to an ashless oil at the next 50 hour check. Refer to Lycoming Service Instruction No. 1014 for details of acceptable oils. 
10. 11.  Do a compression test with the engine warm and the throttle open. Do the compression test on the four cylinders. Use 5.5 bar (80 psi). Maximum permitted decrease 1.4 bar (20 psi). Record the compression test results: 1 _______ 2 _______ 3 _______ 4 _______ Remove the spark plugs. S Examine the spark plugs. Look specially for damaged electrodes. S Clean the spark plugs (refer to spark plug manufacturer's instructions). S Do a spark plug gap test (Refer to the manufacturer's specified spark plug gap).  X X  X X  X X 

05-20-00
AMM
Maintenance Checks

%

DA 40 Series

100 hr items marked X* apply to US registered airplanes only  Interval 
Inspection Items (Lycoming engine only)  50  100  200  1000  Time  Initials 
12.  Install the spark plugs. Use a thread lubricant approved by the spark plug manufacturer: S Install the spark plugs. S Torque to 47 Nm (35 ft.lb). S Refer to Lycoming Service Instruction No. 1042 for approved spark plugs.  X  X  X 
13.  Examine the ignition harness and cables. Examine the sleeve nut on each spark-plug connector for cracks.  X  X  X  X 
14.  Inspect the ignition system. S If the LASAR system is installed, then do a 100 hr. / 500 hr. check of the LASAR system and the magnetos. Refer to the Slick Maintenance and Overhaul Manual L-1503 (latest issue). S If the SlickSTART system is installed, then do a 100 hr. / 500 hr. check of the SlickSTART system and the magnetos. Refer to the SlickSTART Installation, Operation, Maintenance and Troubleshooting Manual L-1492 (latest issue).  X  500 hrs. 
15.  Examine each cylinder. Look specially for broken fins and heat damage.  X  X  X 
16.  Examine the rocker-box covers. Look specially for signs of oil leaks.  X  X  X  X 

05-20-00
Maintenance Checks
AMM

%

DA 40 Series

100 hr items marked X* apply to US registered airplanes only  Interval 
Inspection Items (Lycoming engine only)  50  100  200  1000  Time  Initials 
17.  Examine the valves and rockers: S Remove the rocker covers. S Look specially for abnormal wear and broken parts in the areas of: S Valve tips. S Valve keepers. S Springs. S Spring seats. S Install the rocker covers. Refer to the Lycoming Maintenance Manual.  400 hrs. 
　
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