Document ID: chunk:federal_register_of_legislation:F2011L02807:body:0:p2
Version: federal_register_of_legislation:F2011L02807
Segment Type: other
Provision Reference: 
Character Range: 3003–6330

International Inc. SB No. TFE731-72- 3369RWK, Revision 6, or replace with a serviceable LPT stage 1 nozzle assembly.
                   3. Disc Replacement for TFE731-3, -3A, -3AR, and -3R Series Engines.

                   For TFE731-3, -3A, - 3AR, and -3R series engines with LPT stage 1 disc, P/N 3072351-All, 3073113-All, or 3074103-All, installed, replace the LPT stage 1 disc with a serviceable disc.

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

                   For TFE731-3B and -3BR series engines do the following:

                     (a) Replace LPT stage 1 disc, P/N 3073497-All, with a serviceable LPT stage 1 disc.

                     (b) Perform the actions specified in requirement (4) (a) of this Directive, by converting the TFE731-3B and -3BR series engines to a TFE731- 3C series engine. This conversion allows the installation of a serviceable LPT stage 1 disc.

                   Optional Terminating Action

                   As optional terminating action to the repetitive inspections required by this Directive, replace the applicable LPT stage 1 disc with a more robust serviceable disc. Information on installing a serviceable disc can be found in Honeywell International Inc. SB No. TFE731-72-3704, SB No. TFE731-72-3705 and SB No. TFE731-72-3706 all dated 15 September 2004.

                   Definitions

                   For the purposes of this Directive:

                     (a) Next access to the LPT stage 1 nozzle assembly is defined as when the low-pressure tie-shaft is unstretched.

                     (b) A serviceable LPT stage 1 disc is defined as a disc having a part number not listed in this Directive.

                     (c) A serviceable LPT stage 1 nozzle assembly is defined as an LPT stage 1 nozzle assembly that passes the acceptance referenced in requirements (1)(a) and (2)(a) of this Directive.

                     Alternative Method of Compliance (AMOC)

                      An Alternative Method of Compliance (AMOC) to FAA 2005-05-15 Amdt 39-14004, approved by the United States Federal Aviation Administration (FAA) and issued after the effective date of the original issue of this Airworthiness Directive, is considered acceptable for compliance with the equivalent requirements of this AD.

                     An Alternative Method of Compliance (AMOC) to this Airworthiness Directive, approved by CASA and issued after the effective date of the original issue of this Airworthiness Directive, is considered acceptable for compliance with the equivalent requirements of this AD.

                   Note 2:  FAA AD 2005-05-15 Amdt 39-14004 refers.
Compliance:        1. Initial Inspection for TFE731-2 and -2C Series Engines.

                   At the next major periodic inspection (MPI) or at next access to the LPT stage 1 nozzle assembly, after the effective date of this AD, whichever occurs first, but not to exceed 2,200 hours time-in-service (TIS) since the last 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,