MAINTENANCE MANUAL EXTRA 300/SC
CHAPTER 05
PAGE 20
PAGE DATE: 1. August 2014
Inspector:
Mechanic:
Date:
Serial No.:
Inspections
as specified
each 50 hours
each 100 hours
SCHEDULED MAINTENANCE CHECKS
Maintenance Checks Schedule
O
1
O O 7 Lubricate rear torque tube bearing.
O O 8 Lubricate aileron rodend bearings, trim flap hinges and trim
lever bolt.
O O 9 Check rudder cable system including sleeves, fairleads, pul-
leys and cable retracting springs per FAA-AC 43.13-1A.
O 10 Check for minimum 3.5 mm (1/8") clearance of rudder pedal
versus safety stop when fully deflected for rudder cables
having 50 h flight time minimum. On newly installed rudder
cables the minimum spacing is 6 mm (1/4"). This check is to
be performed with zero loading on the rudder pedals.
O 11 Rough check of safety stop clearance. With a force of approx.
90 kg (200 lbs) acting on the fully deflected rudder pedal the
safety stop shall not be reached. If the stop is reached the
control system indicates a too high flexibility which needs to
be traced. In this case contact EXTRA for advice.
O O 12 Inspect all flight control ventilation holes for obstruction.
O 13 Visually inspect metal push/pull control rods for corrosion,
cracks, or other visible damage, especially at their end fittings.
In case of suspected cracks, remove push/pull control rod,
strip the paint in the suspected area and carry out a detailed
inspection using a magnifying glass (x10). Replace the related
control rod in case a crack is found otherwise reapply surface
treatment and reinstall push/pull control rod.
1 each 25 hours
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