Document ID: chunk:federal_register_of_legislation:F2011L02807:body:0:p3
Version: federal_register_of_legislation:F2011L02807
Segment Type: other
Provision Reference: 
Character Range: 6017–7383

LPT stage 1 nozzle assembly inspection.

                   2. Repetitive Inspections for TFE731-2 and -2C Series Engines.

                   Thereafter at every MPI, but not to exceed 2,200 hours TIS since the last LPT stage 1 nozzle assembly inspection.

                   3. Disc Replacement for TFE731-3, -3A, -3AR, and -3R Series Engines.

                   At the next MPI, or at next access to the LPT stage 1 nozzle assembly, after the effective date of this Directive, or before December 31, 2011, whichever occurs first.

                   4. Disc Replacement for TFE731-3B and -3BR Series Engines.

                At the next MPI, or at next access to the LPT stage 1 nozzle assembly, after the effective date of this Directive, or before December 31, 2011, whichever occurs first.
                This Amendment becomes effective on 23 December 2011.

                The original issue of this Airworthiness Directive became effective on 4 August 2005.
Background:     This Directive results from a report of an uncontained failure of the LPT stage 1 disc installed in a TFE731-3-1H turbofan engine.  The actions detailed in this Directive are intended to prevent additional uncontained failure of the LPT stage 1 disc, and possible damage to the aeroplane.

David Villiers
Delegate of the Civil Aviation Safety Authority

21 December 2011