Airworthiness Directive · Amendment 39-14714 · Airbus Model A318, A319, A320, and A321 Airplanes
Airbus Model A318, A319, A320, and A321 Airplanes
This AD applies to Airbus Model A318, A319, A320, and A321 airplanes, certificated in any category, except airplanes having manufacturer serial numbers (MSN) 2155 and subsequent.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A318, A319, A320, and A321 airplanes. This AD requires inspecting to determine the part number of the twin motor actuators, and related investigative and corrective actions if necessary. This AD results from a report of a low pressure valve of the twin motor actuator found partially open, although the valve detection system indicated that the valve was closed. Investigation revealed that the locating pin in the actuator was too short to engage with the valve slot, resulting in incorrect alignment of the actuator and the drive assembly, causing the valve to remain partially open. We are issuing this AD to ensure that, in the event of an engine fire, the valve actuator functions properly to block the fuel flow to the engine and prevent an uncontrollable fire.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 6,000 flight hours or 24 months after the effective date of this AD, whichever is first: Inspect to determine the part number (P/N) of the twin motor actuators in accordance with Airbus Service Bulletin A320-28-1122, Revision 01, including Appendix 01, dated April 11, 2006.
(1) For airplanes having any actuator with P/N FRH010041 or P/N FRH010034, no further action is required by this paragraph.
(2) For airplanes having any actuator with P/N HTE190001-2, where the actuator serial number is not identified in Appendix 01 of the service bulletin, no further action is required by this paragraph.
(3) For airplanes having any actuator with P/N HTE190001 or HTE190001-1, do all applicable related investigative and corrective actions before further flight, in accordance with the service bulletin.
(4) For airplanes have any actuator with P/N HTE190001-2, where the actuator serial number is identified in Appendix 01 of the service bulletin, do all applicable related investigative and corrective actions before further flight, in accordance with the service bulletin.
Note 1: Airbus Service Bulletin A320-28-1122, Revision 01, dated April 11, 2006, refers to FR-HiTEMP Service Bulletin HTE190001-28-003, dated March 30, 2004, as an additional source of service information for determining the P/N of the twin motor actuators and accomplishing any related investigative and corrective actions.
Accomplishment of the actions required by paragraph (f) of this AD before the effective date of this AD in accordance with Airbus Service Bulletin A320-28-1122, including Appendix 01, dated November 19, 2004, is acceptable for compliance with the requirements of that paragraph.
As of the effective date of this AD: No person may install an actuator with P/N HTE190001, HTE190001-1, or HTE190001-2, and a serial number identified in Appendix 01 of Airbus Service Bulletin A320-28-1122, Revision 01, dated April 11, 2006, on any airplane unless all applicable related investigative and corrective actions have been done in accordance with the requirements of paragraph (f)(3) of this AD.
