TCH.1C-27J-2-27JG
2-15.6 SPRING TAB / AILERON TRANSMISSION RATIO
CHECK (refer to figure
to figure
7.Apply by hand an increasing load first upwards and
then downwards on the trailing edge of each aileron,
until the ailerons reach their travel limits. The LH (RH)
spring tab must travel 12 ° +1.7 ° /-0.5 ° upwards or
downwards with respect to the aileron. The LH (RH)
aileron must travel 8.5 ° +3.4 ° /-0.3 ° upwards or
downwards. This check shall be performed using
inclinometer readings and the following formula:
°
Spring Tab = 1° Spring Tab — 1° Aileron.
8.Check tab control mechanism for freedom of
movement and absence of interference.
9.Apply by hand a load upwards and then downwards
on the trailing edge of LH (RH) aileron, making the
aileron travel in 1° increment. Read the corresponding
angle of LH (RH) spring tabs on the related
inclinometer. The average ratio between LH (RH)
spring tab angle and LH (RH) aileron must be 1.15 ÷
1.4.
10.Remove the differential control levers locking tool
(AGE NO. 00036).
2-15.7 TRIM TAB FREE TRAVEL CHECK (refer to figure
1.Ensure that the geared Trim Tab (LH) and geared tab
(RH) are installed but not connected to the control
line.
2.Install the LH (RH) aileron trim check templates (AGE
NO. 00039) on the LH (RH) aileron.
(Cont'd)
27-10-10
2-109