Document ID: chunk:federal_register_of_legislation:F2007L00566:body:0:p2
Version: federal_register_of_legislation:F2007L00566
Segment Type: other
Provision Reference: 
Character Range: 2789–4915

the engines in accordance with paragraph 3 of MHI SB No. 233A or later revision approved by the Japan Civil Aviation Bureau (JCAB).
             Note 1:  The holder of a Certificate of Registration of an Australian aircraft is required under Civil Aviation Regulation 55 to ensure that the Aircraft Flight Manual (AFM) is amended to the current approved revision.
                4. Repair any discrepancies noted during the Requirement 1 check.
             Note 2:  JCAB AD TCD-4889-1-2006 refers.
Compliance:  For Requirement 1.a. - Within 100 hours time in service (TIS) after the effective date of this Amendment.
             For Requirement 1.b. - Before further flight after the Requirement 1.a. inspection.
             For Requirement 2.a. - Within 100 hours TIS after the effective date of this Amendment.
             For Requirement 2.b. - Before further flight after the Requirement 2.a. inspection.
             For Requirement 2.c. - Within 100 hours TIS after the effective date of this Amendment.
             For Requirement 2.d. - Before further flight after the Requirement 2.c. inspection.
             For Requirement 3 - Within 100 hours TIS after the effective date of this Amendment.
             For Requirement 4 - Before further flight after the Requirement 3 check.
             This Amendment becomes effective on 9 March 2007.
Background:  MHI reports that some torque transmitter or transducers have been found significantly out of calibration.  This can result in an actual power mismatch that is not indicated on the engine instruments.  Mismatched power and resulting trim may result in degraded performance or handling qualities.
             The original issue of this Directive required the inspection and, if necessary, the repair, replacement or calibration of the torque indication system.
             This amendment introduces a ground check of the engines following the inclusion of a Power Assurance Chart in the AFM.

   The original issue of this Directive became effective on 10 March 1999.

David Punshon
Delegate of the Civil Aviation Safety Authority

28 February 2007