AIRCRAFT MAINTENANCE MANUAL
DFE-AMM-AR1
Rev. 1 – 07/24/2014
3-26
3.6.2. Instructions for Authorized Maintenance, Repair or Alterations
3.6.2.1.
Measurement of control surfaces deflections
•
Tools needed: Protractor with a deflection hand, a clip to attach protractor to measured
control surface.
•
Parts needed: None
•
Type of maintenance: Line
•
Level of Certification needed: - Aircraft owner (only for ELSA)
- Sport pilot or higher
•
Instructions:
Required deflections
-
Elevator
Pos:
30
o
Neg:
20
o
-
Aileron
Pos:
28
o
Neg:
25
o
-
Rudder
Left:
30
o
Right:
30
o
-
Trim Tab (Elevator)
Pos:
15
o
Neg:
30
o
-
Trim Tab (Aileron)
Pos:
25
o
Neg:
25
o
-
Flap:
Position I
15
o
Position II
25
o
Position III
45
o
Aileron deflection measurement
1. Attach a protractor with a deflection hand at the aileron upper surface by means of a
clamp.
2. Set the aileron in neutral position (the aileron must fit the wing profile).
3. Zero the protractor - starting position for measurement.
4. Deflect the aileron fully down/up and note the deflections.
5. Compare, the measured deflections with the ones specified in the Control Surfaces
Deflection Requirements. If required - adjust the aileron.
