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AD/J4100/22 - Main Wheel Tie Bolts
BAe Systems (Operations) Jetstream 4100 BAe Systems (Operations) Jetstream 4100 Series Aeroplanes
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BAe Systems (Operations) Jetstream 4100 Series Aeroplanes
| AD/J4100/22 | Main Wheel Tie Bolts | 4/2008 DM |
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| Applicability: | All Model Jetstream Series 4100 aircraft. |
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| Requirement: | 1. Carry out the Accomplishment Instructions detailed in paragraph 2 of BAE Systems Service Bulletin (SB) J41-32-058 Revision 1, or later EASA approved revision.a. At every 5th main wheel tyre change, discard and replace the main wheel tie bolts in accordance with paragraph 2 of SB J41-32-058 Revision 1, or later EASA approved revision.b. For main wheel tie bolts previously subject to UK CAA AD 002-05-97, the five allowable tyre changes shall continue to be counted from the initial installation of the bolts when new;OR,2. From the effective date of this Directive, inspect the main wheel tie bolts at each tyre change in accordance with the instructions detailed in paragraph 2 of SB J41-32-058 Revision 2, or later EASA approved revision. Main wheel tie bolts maintained in accordance with this requirement are not subsequently eligible for compliance with Requirement 1.Incorporation of SB J41-32-072 Revision 1, or later EASA approved revision, which introduces a modified main wheel assembly with larger diameter wheel tie bolts, constitutes terminating action for the requirements of this Directive.Note: UK CAA AD G-2005-0022 refers. |
| Compliance: | 1. At the next main wheel tyre change after the effective date of this Directive.2. From the effective date of this Directive. |
| This Airworthiness Directive becomes effective on 20 February 2008. |
| Background: | Following a series of failures of 5/16-inch diameter main wheel tie bolts which could have resulted in wheel and/or tyre failure, and with consequential damage or impaired directional control, SB J41-32-058 Revision 1 was mandated by CAA AD 002-05-97.Revision 2 of SB J41-32-058 covers revised Dunlop vendor Service Bulletin AHA1837-32-1157 at Revision 4 which changes the maintenance procedure for the main wheel tie bolts and, if carried out, removes the retirement life that was imposed on the bolts. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
15 February 2008