Air Tractor, Inc.
Maintenance Page 011
AT-502A/502B/504
March 14, 2018
Miscellaneous
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VERIFY ACCURACY OF ITT GAUGE EVERY TWO YEARS
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OVERHAUL STARTER-GENERATOR AT 1000 HOURS
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DYNAMIC BALANCE PROPELLER AT 1000 HOURS
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REPLACE AN47-22A EYEBOLTS ON HOROZONTAL STABLIZER (REFERENCE SL 129)
TORQUE TO 600 IN-LBS AT 1350 HOURS.
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REPLACE OR OVERHAUL COMMERCIAL AIRCTRAFT PRODUCTS P/N D-145-00-35
ACTUATOR AT 1500 HOURS.
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REPLACE THE RE4M6 BEARING ON THE AFT END OF THE FLAP PUSH-RODS AT 2000
HOURS.
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OVERHAUL PROPELLER PER HARTZELL REQUIREMENTS (See Hartzell Service Letter
HC-SL-61-61Y, Rev 1 or later).
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OVERHAUL THE FUEL CONTROL UNIT (FCU) IN ACCORDANCE WITH THE PRATT
AND WHITNEY CANADA MANUAL.
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CHANGE MAIN GEAR BOLTS IN ACCORDANCE WITH
SCHEDULE IN “MAIN AND TAIL
GEAR ATTACH BOLTS” OF THIS SECTION
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CHANGE TAIL GEAR BOLTS IN ACCORDANCE WITH SCHEDULE IN “MAIN AND TAIL
GEAR ATTACH BOLTS” OF THIS SECTION
Summary of Contents for AT-502A
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