Document ID: chunk:federal_register_of_legislation:F2005L02047:body:0:p1
Version: federal_register_of_legislation:F2005L02047
Segment Type: other
Provision Reference: 
Character Range: 0–5403

AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AlliedSignal (Garrett/AiResearch) Turbine Engines - TFE731 Series
AD/TFE 731/34  1st and 2nd Stage Low         9/2005
               Pressure Turbine Rotor Discs

Applicability:  Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.) TFE731-2 and -3 series turbofan engines with the following low pressure (LP) 1st and 2nd stage turbine rotor disc part numbers (P/Ns), with serial numbers (SNs) listed in Tables 1, 2, and 3 of Honeywell International Inc. SB No. TFE731-72-3682, dated 26 November 2002, initially installed as new parts before 1 April 1991:
                Part Numbers
                3072069-All                                                                                                                                                                                                                                                                                                                                                                                                                  3073014-All
                3072070-All                                                                                                                                                                                                                                                                                                                                                                                                                  3073113-All
                3072351-All                                                                                                                                                                                                                                                                                                                                                                                                                  3071114-All
                3072542-All                                                                                                                                                                                                                                                                                                                                                                                                                  3074103-All
                3073013-All                                                                                                                                                                                                                                                                                                                                                                                                                  3074105-All
                (All denotes all dash numbers installed)
                Note 1:  These engines are installed on, but not limited to, the following aeroplanes:

                   Avions Marcel Dassault Mystere-Falcon 10 and 50 series

                   Cessna Model 650, Citation III, and Citation VI

                   Gulfstream Aerospace LP (formerly IAI) 1125 Westwind Astra series

                   Israel Aircraft Industries (IAI) 1124 series

                   Learjet 31, 35, 36, and 55 series

                   Lockheed-Georgia 1329-25 series (731 Jetstar, Jetstar II)

                   Raytheon Corporate Jets (formerly British Aerospace) DH/HS/BH-125 series;

                   Sabreliner NA-265-65 (Sabreliner 65)

Requirement:     1. For TFE731-2-2J, TFE731-2-2N, TFE731-2A-2A, and TFE731-3-1J engines, replace discs that are listed by SN in Tables 1 and 3 of SB No. TFE731-72-3682.

                 2. For TFE731-2 series engines except TFE731-2-2J, TFE731-2-2N, and TFE731-2A-2A engines, replace discs that are listed by SN in Tables 1 and 2 of SB No. TFE731-72-3682.

                 3. For TFE731-3 series engines except TFE731-3-1J, replace discs that are listed by SN in Table 3 of SB No. TFE731-72-3682.

                 4. Do not install any LP 1st and 2nd stage turbine rotor disc that has a SN listed in Table 1, 2, or 3 of SB No. TFE731-72-3682 and determined to be manufactured before 1 April 1991.

              Definition:  For the purposes of this AD, access to the turbine discs is the level of disassembly that has removed the tie-shaft nut.

              Note 2:  FAA AD 2005-13-07 Amendment 39-14143 refers.
Compliance:      1. Within 100 hours time- in-service (TIS) after the effective date of this Directive.

                 2. At the next Major Periodic Inspection (MPI) or next access to the turbine discs after the effective date of