Validity : S / N 1 - 9999 05-20 02 (JA) Page juN20101
 
"2A" INSPECTION - 50 HOURS

Registration number Model and Serial number Aircraft operating hours

ATA "2A" INSPECTION - 50 HOURS
PRELIMINARY STEPS AREA OTHER
INSPECTION PERFORMED
BY
 PRELIMINARY STEPS 000  
 1) Record anomalies into log book or equivalent document for corrective action. 000  
 2) Check aircraft compliance with airworthiness directives, service bulletins and service letters - refer to 05-00-02 1. 000  
 3) Check expiry dates of life-limited parts : 000  
 - airframe - refer to 04-00-00 1 and 05-50-05 601, - equipment and hoses - refer to 05-10-00 1.   
 4) Perform a test run-up. Record parameters (at engine start) - refer to 05-30-02 201. 000  
21-50 5) During the time the vapor cycle cooling system (if
installed) is not used, run the compressor for 10 minutes, with engine at idle speed. 000 1 month 
71-10 6) Remove upper engine cowling 121 and lower engine cowling 131. Visually inspect for cracks, wear, evidence of leaks (oil, fuel, air, exhaust gas) and security - refer to 71-10-01 201. 100  
12-10 7) Drain the oil system - refer to 1 2-1 2-02 301, replace the filter - refer to 79-20-02 201, clean the strainer of crankcase - refer to 79-10-02 201. 100 First engine
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 8) 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 9) 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  

AIAA
Validity : S / N 1 - 9999 05 20 03 ,,,,, Page 201
JUN 01
 

ATA "2A" INSPECTION - 50 HOURS
PRELIMINARY STEPS AREA OTHER
INSPECTION PERFORMED
BY
72-30 10) 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  
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：TB 20 MAINTENANCE MANUAL 05 TIME LIMITS MAINTENANCE CHECKS TB20飛機維護手冊 05 時間限制維護檢查 2