12. Inspect condition of spark plugs. (Clean and adjust gap as required; adjust per latest Lycoming Service Instruction No. 1042) .................................................................................. O O O O O 
— Note— 
If fouling of spark plugs has been apparent, rotate 
bottom plugs to upper plugs.
13. Inspect spark plug cable leads and ceramics for corrosion and deposits............................................................................... O O O O O O 
14. Check cylinder compression (Ref.: AC 43.1301A) .................. O O O O O 
15. Inspect cylinder for cracked or broken fins (See Note 10) ....... O O O O O O 
16. Inspect rocker box covers for evidence of oil leaks. If found, replace gasket; torque cover screws 50 inch-pound (See Note 11) ............................................................................ 
O O O O O O 
17. Inspect ignition harness and insulators for high tension leakage and continuity .............................................................. 
O O O O O 
18. Check magneto points for proper clearance (Use “E” Gap method, see 74-10-00) ....................................... 
O O O O O 
19. Inspect magneto for oil seal leakage......................................... O O O O O 
Page 5-14 Revised: February 28, 2002 
1B20 
THE NEW PIPER AIRCRAFT, INC. 
PA-44-180 
AIRPLANE MAINTENANCE MANUAL
SCHEDULED MAINTENANCE CHECKS (CONT)  
— Note — Refer to Notes 1, 2, 3, and 4 before performing inspections. 
Nature of Inspection  Inspection time (hrs)  
B. ENGINE GROUP (cont)  L  R  50  100  500  1000  
20. Inspect distributor block for cracks, burned areas or  
corrosion and height of contact springs ....................................  O  O  O  O  O  
21. Check magnetos to engine timing.............................................  O  O  O  O  O  
22. Overhaul or replace magnetos (See Note 7) .............................  O  O  O  O  O  
23. Remove air filters, tap gently to remove dirt particles and  
inspect condition of seal and filter material  
(Replace as required) (See Note 29) .........................................  O  O  O  O  O  O  
24. Inspect condition of air filter housing .......................................  O  O  O  O  O  O  
25. Inspect security of carburetor throttle arm................................  O  O  O  O  O  
26. Drain carburetor and clean inlet line fuel strainer.....................  O  O  O  O  O  
27. Inspect condition of carburetor heat air door and box   
(See Note 12) ............................................................................  O  O  O  O  O  O  
28. Inspect intake seals for leaks and clamps for tightness.............  O  O  O  O  O  
29. Inspect all air inlet cut hoses and replace as required...............  O  O  O  O  O  
30. Inspect condition of flexible fuel lines (See Note 8) ................  O  O  O  O  O  
31. Inspect primer lines (See Note 8)..............................................  O  O  O  O  O  
32. Inspect primer for condition and security .................................  O  O  O  O  O  
33. Clean screens in electric fuel pump .........................................  O  O  O  O  O  O  
34. Remove, drain, and clean fuel filter bowl and screen  
(* Drain and clean at least every 90 days.) ...............................  O  O  O*  O  O  O  
35. Replace flexible fuel lines  (See Note 8)...................................  O  O  O  
36. Inspect fuel system for leaks.....................................................  O  O  O  O  O  
37. Inspect engine driven and electric fuel pumps for operation ....  O  O  O  O  O  
38. Overhaul or replace engine driven and electric fuel pumps  Engine overhaul or  
(See Note 22) ............................................................................  O  O  every 5 years.  
 
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