Document ID: chunk:federal_register_of_legislation:F2007L04020:body:0:p6
Version: federal_register_of_legislation:F2007L04020
Segment Type: other
Provision Reference: 
Character Range: 19066–20638

1 of this AD.

                2. As detailed in Table 2 of this AD.

                3. Before further flight when any of the following occurs:

                  a. The pitch trim actuator is inspected following Requirement 2 of this AD and the freeplay limitations are exceeded, rod slippage is found, or a ratcheting sound occurs, as specified in the applicable service letters; or

                  b. The installed pitch trim actuator reaches its repetitive replacement time as specified in table 2 of this AD.

                4. From the effective date of this AD.

                5. From the effective date of this AD.
             This Airworthiness Directive becomes effective on 25 October 2007.

Background:  This AD results from reports of mechanical failure of the pitch trim actuator causing the horizontal stabilizer to move to full aircraft nose up.  The issuing of this AD is intended to detect excessive freeplay or rod slippage in the pitch trim actuator, which, if not detected and corrected, could result in pitch trim actuator failure.  It is also intended to lessen the severity of pitch upset if a pitch trim actuator mechanical failure occurs.  These conditions could lead to possible loss of control.  The issuing of this AD will also eliminate the use of certain pitch trim actuators that require frequent critical inspections or replacements.

             This AD supersedes AD/SWSA226/68 Amdt 5 and AD/SWSA226/85 Amdt 1 which are cancelled.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

10 September 2007