Airworthiness directives › 2013-13-16
AD 2013-13-16 Airworthiness Directives; Airbus Airplanes
Models named: A330-201, -202, -203, -223, -223F, -243, -243F, -301, -302, -303. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all Airbus Model A330-201, -202, -203, -223, -223F, -243, -243F, -301, -302, -303, -321, -322, -323, -341, -342, and -343 airplanes; and Model A340- 211, -212, -213, -311, -312, and -313 airplanes; certificated in any category.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Required actions
This paragraph restates the requirements of paragraph (g) of AD 2005-07-04, Amendment 39-14028 (70 FR 16104, March 30, 2005). Except for Model A330-223F and -243F airplanes: Within 24 months after May 4, 2005 (the effective date of AD 2005-07-04), modify the ball nut of each THSA by doing paragraph (g)(1) or (g)(2) of this AD, as applicable. (1) For THSAs having part number (P/N) 47172: Modify the ball nut of the THSA, or replace the existing THSA with a serviceable part having P/N 47172-300; in accordance with Airbus Service Bulletin A330-27-3085 (for Model A330 series airplanes) or A340-27-4089 (for Model A340-313 series airplanes), both Revision 02, both dated September 5, 2002; as applicable. Note 1 to paragraph (g)(1) of this AD: Airbus Service Bulletins A330-27-3085 and A340-27-4089, both Revision 02, both dated September 5, 2002, refer to TRW Aeronautical Systems Service Bulletin 47172-27-03, dated October 24, 2001 (which is not incorporated by reference in this AD), as additional guidance for accomplishing the modification of the ball nut of the THSA. (2) For THSAs having P/N 47147-200, -210, -213, -300, -303, -350, or -400: Modify the ball nut of the THSA, or replace the existing THSA with an improved part having P/N 47147-500; as applicable; in accordance with Airbus Service Bulletin A330-27-3093 (for Model A330 series airplanes) or A340-27-4099 (for Model A340-200 and -300 series airplanes), both Revision 01, both dated September 5, 2002; as applicable. Note 2 to paragraph (g)(2) of this AD: Airbus Service Bulletins A330-27-3093 and A340-27-4099, both Revision 01, both dated September 5, 2002, refer to TRW Aeronautical Systems Service Bulletin 47147-27-10, dated June 27, 2002 (which is not incorporated by reference in this AD), as additional guidance for accomplishing the modification of the ball nut of the THSA.
Unsafe condition
This AD was prompted by several reports of disconnection of the transfer tube from the ball nut of the trimmable horizontal stabilizer actuator (THSA). We are issuing this AD to prevent degraded operation of the THSA, which could result in reduced controllability of the airplane.
Affected ADs
This AD supersedes AD 2005-07-04, Amendment 39-14028 (70 FR 16104, March 30, 2005).
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1