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73-10 21) Visually inspect the mechanical fuel pump. Check attach fittings and connections on the engine pump and the pressure switch. 100 NOTE 1 
73-10 22) Visually inspect the fuel hoses for condition, attachment and routing. Look for evidence of wear and interference. 100  
73-20 23) Perform an overhaul of the injection pump. 100 Associated
with engine
overhaul 
73-20 24) Visually inspect the injection pump, attach fittings and check for leaks. 100  
73-20 25) Remove and clean the injection pump fuel supply filter. 100 NOTE 1 
 Install the filter - refer to 73-20-01 301.   
73-10 26) Visually inspect the flow distributor. 100 NOTE 1 
73-10 27) Check the fuel injector nozzles for looseness - refer to 73-10-02 201. 100 NOTE 1 

NOTE 1 : If a 100-hr. inspection has been carried out during the last 3 months, do not perform this operation unless this annual inspection replaces a 100-hr. inspection. For US registered aircraft, perform all operations.
ADAA
Validity : S / N 1 - 9999 05 20 06Page 221
(EA) JUN 01
 

ATA ANNUAL INSPECTION (Al)
ENGINE COMPARTMENT INSPECTION (AREA 100) AREA OTHER INSPECTION
PERFORMED
BY
73-10 28) Check for discoloration at the fuel injector nozzles 100 NOTE 1 
 (evidence of leak) and check the lines for attachment -
refer to 73-10-02 201 and the latest issue of LYCOMING   
 Service Bulletin No. 342.   
73-00 29) Check the fuel system for leaks and security of the clamps. 100 NOTE 1 
73-30 S / N 1 - 730 100  
 30) Visually inspect the fuel flow totalizer sensor on the engine mount (if installed), check the unions and
connectors for condition.   
28-00 S / N 1 - 9999 000 NOTE 1 
 31) Inspect the fuel system for tightness (from the electric pump to the power plant equipment) - refer to 28-00-00 201.   
61-10 32) Remove and thoroughly inspect propeller spinner 111 for cracks, check the attach fittings - refer to 61-10-00 401. 100 NOTE 1 
61-10 33) Perform an overhaul of the propeller. 100 Refer to 
   05-10-00 
61-10 34) Perform an overhaul of the propeller governor. 100 Associated
with engine
overhaul 
61-10 35) Check the grooved rubber on the de-iced propeller (if installed) for bonding and cleanliness - refer to 100 NOTE 1 
 30-60-00 201.   
　
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