Document ID: chunk:federal_register_of_legislation:F2011L02807:body:0:p1
Version: federal_register_of_legislation:F2011L02807
Segment Type: other
Provision Reference: 
Character Range: 0–3286

AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/TFE 731/33 and issues the following 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 731/33 Amdt 1  LPT Stage 1 Nozzle and Disks  26/2011

Applicability:  Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.) TFE731-2 and -2C series, and TFE731-3, -3A, -3AR, -3B, -3BR, and -3R series turbofan engines, with low pressure turbine (LPT) stage 1 discs, part numbers (P/Ns) 3072070-All, 3072351-All, 3073013-All, 3073113-All, 3073497- All, and
                3074103-All, (where All denotes all dash numbers), installed.

                Note 1:  These engines are installed on, but not limited to, the following aeroplanes:
                Avions Marcel Dassault Falcon 10 and Mystere Falcon 50 series Learjet 31, 35, 36, and 55 series Lockheed-Georgia 1329-25 series Israel Aircraft Industries 1124 series and 1125 Westwind series Cessna Model 650, Citations III and VI Raytheon British Aerospace HS-125 series Sabreliner NA-265-65.
Requirement:       1. Initial Inspection for TFE731-2 and -2C Series Engines

                   For TFE731-2 and -2C series engines with Low Pressure Turbine (LPT) stage 1 disc, Part Number (P/N) 3072070-All, or 3073013-All, installed, do the following:

                     (a) Measure throat dimensions, air flow and determine serviceability of the LPT stage 1 nozzle assembly using paragraphs 2.A. (3) through 2.A. (5) of Honeywell International Inc. Service Bulletin (SB) No.
                     TFE731-72-3369RWK, Revision 6, dated 26 June 2002; and

                     (b) If necessary, adjust the LPT stage 1 nozzle assembly using paragraph 2.B of Honeywell International Inc. SB No. TFE731-72- 3369RWK, Revision 6, or replace with a serviceable LPT stage 1 nozzle assembly.

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

                   For TFE731-2 and -2C series engines, do the following:

                     (a) Measure throat dimensions, air flow and determine serviceability of the LPT stage 1 nozzle assembly using paragraphs 2.A.(3) through 2.A.(5) of Honeywell International Inc. SB No. TFE731-72-3369RWK, Revision 6.

                     (b) If necessary, adjust the LPT stage 1 nozzle assembly using paragraph 2.B of Honeywell 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