Document ID: chunk:federal_register_of_legislation:F2006B10047:body:0:p2
Version: federal_register_of_legislation:F2006B10047
Segment Type: other
Provision Reference: 
Character Range: 2813–5805

If any damper shaft is found broken: Replace the actuator in accordance with the applicable alert customer bulletin.

                 For any replacement actuator having a P/N and S/N listed in the applicable alert customer bulletin, an inspection in accordance with Requirement 2 of this Directive must be carried out prior to fitment. Ongoing repeat inspection will then apply as detailed in Requirement 2a of this Directive.

                 Fitment of any actuator having a P/N and/or S/N not listed in the applicable alert customer bulletin will provide terminating action for that actuator only.

              Optional Terminating Action

                 Replacement of all suspect actuators with new or serviceable actuators having a P/N and/or S/N not listed in the applicable alert customer bulletin terminates the requirements of this Directive.

3.         Do not install an aileron or elevator actuator having a P/N and S/N specified in the applicable alert customer bulletin, on any aeroplane, unless the actuator has been inspected according to Requirement 2 of this Directive.

                   Table 1. - Applicable Gulfstream Alert Customer Bulletins

  For model-                 Alert customer bulletin-                          Revision-      Dated-
G-1159 and G-               Gulfstream GII/GIIB Alert Customer Bulletin 29A.  A           23 August 23 2004.
1159B series aeroplanes.
G-1159A series aeroplanes.  Gulfstream GIII Alert Customer Bulletin 15A       A           23 August 23 2004.
G-IV series aeroplanes.     Gulfstream G300 Alert Customer Bulletin 32A       A           23 August 23 2004.
G-IV series aeroplanes.     Gulfstream G400 Alert Customer Bulletin 32A       A           23 August 23 2004.
G-IV series aeroplanes.     Gulfstream GIV Alert Customer Bulletin 32A        A           23 August 23 2004.

            Note: FAA AD 2004-21-03 Amdt 39-13824 refers.

 Compliance: 1. Within 50 flight hours after the effective date of this Directive.

2.         Before further flight.

2.a.   At intervals not to exceed 500 flight hours or 12 months, whichever occurs first from the last detailed inspection as detailed in Requirement 2 or 2a of this Directive.

2.b.  Actuator replacement; Before further flight.

3.         From the effective date of this Directive.

           This Airworthiness Directive becomes effective on 23 December 2004.

            Background: This Directive is prompted by reports of broken or cracked damper shafts within the aileron and elevator actuator assemblies. This Directive is issued to detect and correct broken damper shafts, which could result in locking of an aileron or elevator actuator (hard- over condition), subsequent loss of aileron or elevator control, and consequent reduced controllability of the aeroplane.

 James Coyne
 Delegate of the Civil Aviation Safety Authority 9 November 2004

 The above AD is notified in the Commonwealth of Australia Gazette on 1 December 2004.