Document ID: chunk:federal_register_of_legislation:F2009L02244:body:0:p1
Version: federal_register_of_legislation:F2009L02244
Segment Type: other
Provision Reference: 
Character Range: 0–3593

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/AIRCON/14 Amdt 3 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.

Airconditioning Equipment
AD/AIRCON/14 Amdt 4  Zonal Drying System Regeneration  7/2009
                     Air Duct Overheat

Applicability:  CTT Systems AB Zonal Drying System P/N 1000-001, 2000-000, 2000-005,
                2001-001, 2001-006, 3000-000 Rev.A, 3000-001, 3000-002 Rev.A and 3000-002 Rev.D.

                Note 1:  These are known to be installed in, but not limited to, Airbus A330-243 and A330-322; Boeing 737-700, 737-800, 747-400, and 767-300 series; Bombardier
                CL-600-2B19; and McDonnell Douglas MD-11 series aeroplanes.

                The following STCs have been identified to be affected by the requirements of this AD.  The approval list for the installation of the affected Zonal Drying System in Table 1 of this AD may be not exhaustive.  In case the relevant aircraft are not listed therein, this does not exempt any aircraft having an affected Zonal Drying System P/N installed from compliance with this directive.

                Table 1.
                STC Number       Issued by  Holder                Applicable to
                TA0259           LBA        Lufthansa Technik AG  Airbus A330-322 (s/n 120)
                LBA.21E2.TA0270  LBA        Lufthansa Technik AG  Bombardier
                                                                  CL-600-2B19
                LBA.21E2.TA0307  LBA        Lufthansa Technik AG  Boeing 737-700
                LBA.21E2.TA0609  LBA        Lufthansa Technik AG  Airbus A330-243
                LBA.21E2.TA0636  LBA        Lufthansa Technik AG  Boeing 737-800

                (See Note 2)
                TA0733           LBA        Lufthansa Technik AG  Boeing 747-400

              SA 0003 NL      RLD   CTT Systems AB          McDonnell Douglas MD-11
              SA 0009 NL **   RLD   CTT Systems AB          Boeing 767-300

              (See Note 3)
              EASA.A.S.02547  EASA  CTT Systems AB          Boeing 767-300
              Z 21-74-01      FOCA  SR Technics, TEC        McDonnell Douglas MD-11
              Z 25-20-77      FOCA  Jet Aviation Basel, AG  Boeing 737-700 (s/n 32627)

              Note 2:  LBA.21E2.TA0636 was approved by EASA under Approval Number
              2004-4416.

              Note 3:  RLD STC SA 0009 NL has been superseded by EASA.A.S.02547 on
              1 March 2006.
Requirement:  Switch off the Zonal Drying System installed in accordance with one of the STCs listed in Table 1 of the Applicability section of this AD and set system inoperative by pulling and securing the affected circuit breaker in accordance with relevant maintenance instructions.

              Terminating Action.

              On aircraft where the following STCs are installed, the actions detailed in this AD are no longer applicable and the Zonal Drying System accordingly modified can