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10 hrs and
25 hrs or 
 NOTE : Before discarding the filter and cleaning the strainer, check that there are no metal particles in the folds.
50 hrs or  4 months then every
4 months 
 Close the drain cock and service the oil tank - refer
to 12-12-01 301 and to the latest issue of LYCOMING   
 SB 480.   
72-30 13) Check for oil leaks around the rocker-box covers. If necessary replace the seal and torque screws - refer to 20-00-01 201. 100  
72-30 14) Check that there is no evidence of overheat on the cylinders, indicated by burnt paint. In this case a fault exists inside the cylinder, and this must be repaired before returning the aircraft to service. 100  
72-30 15) Marked discoloration and seepage around the cylinder heads and cylinder barrel joints are usually due to the seepage of threading grease used at the factory for assembly of the cylinder or to slight gazeous leaks which will disappear once the cylinder has been operated for some time. 100  
72-30 16) In this case, neither the operation nor the performance of the engine is affected. If the leaks are more serious, replace the cylinder. 100  
12-20 17) Clean the engine - refer to 12-20-03 201. 000  
07-10 18) Jack up the aircraft - refer to 07-10-00 201. 000  
52-40 19) Remove battery access door 243 (battery at the rear), visually inspect for cracks and security. 200  
52-40 20) Remove inspection doors 211L, 211R (if installed),
visually inspect for cracks and security. 200  
24-30 21) Disconnect battery - refer to 24-30-02 201. 000  
24-30 22) Remove the battery. Inspect the battery tray and the shims for condition, cracks and corrosion. 000  
 Install the battery - refer to 24-30-02 201.   

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 202
(EA) JUN 01
 

ATA ANNUAL INSPECTION (AI)
PRELIMINARY STEPS AREA OTHER
INSPECTION PERFORMED
BY
24-30 23) Check battery electrolyte level, condition of lugs and inspect for evidence of oxidation - refer to 24-30-02 201. 000 NOTE 1 
24-40 24) Visually inspect the ground power receptacle (if installed) for corrosion and check cable security and connections. 200  
24-40 25) Connect an external power supply source to the ground power receptacle (if installed). Energize. 200  
　
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