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Operation: A rod-end bearing is screwed into a steel push rod and locked by means of a jam nut which has locking varnish applied to it. Damage to this varnish can indicate a twisting and thus a change to the adjustment. The connection between the rod-end bearing and the control horn is a bolt, the nut of which is likewise sealed with locking varnish.
The flap control horn is attached to the flap with 3 screws.
The flaps are driven by an electric motor and have 3 settings:
-Cruise (UP), totally retracted
-Take-off (T/O), and
-Landing (LDG).
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Doc. No. 6.01.05-E Revision 1 03-Mar-2003 Page 7 - 4
The flaps are operated by means of a 3-position flap selector switch on the instrument panel. The positions of the switch correspond to the positions of the flaps, the Cruise position of the switch being at the top. If the switch is moved to another position, the flaps continue to travel automatically until they have reached the position selected on the switch. The UP and LDG positions are additionally protected by a limit switch to guard against over-running the end positions.
The electrical flap drive has an automatic circuit breaker which can also be operated manually.
Flap position indicator:
The current flap position is indicated by means of three lights beside the flap selector switch.
When the upper light (green) is illuminated, the flaps are in the Cruise position (UP); when the center light (white) is illuminated, the flaps are in Take-off position (T/O); when the lower light (white) is illuminated, the flaps are in Landing position (LDG).
When two lights are illuminated simultaneously, the flaps are between the two indicated positions. This is the case only when the flaps are traveling.
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Doc. No. 6.01.05-E Revision 1 03-Mar-2003 Page 7 - 5
Elevator
Construction: GFRP sandwich.
Hinges: 5 hinges.
Operation: Steel push-rods;
Two of the bellcrank bearings are accessible to visual inspection next to the lower hinge of the rudder. The elevator horn and its bearing, as well as the connection to the push-rod, can be visually inspected at the upper end of the rudder.
Rudder
Construction: GFRP sandwich.
Hinges: Upper hinge: One bolt.
Lower hinge: Bearing bracket including rudder stops, held by 4 screws to the rear web of the vertical stabilizer. The mating part on the rudder is a bracket which is attached to the rudder by 2 bolts. The bolts and nuts are accessible to visual inspection.
Operation: Steel cables, the eyes of which are connected to the bolts on the bracket.
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Doc. No. 6.01.05-E Revision 1 03-Mar-2003 Page 7 - 6
Elevator Trim
The trim control is a black wheel in the center console to the rear of the power lever. To guard against over-rotating, the trim wheel incorporates a friction device. A mark on the wheel shows the take-off (T/O) position.
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