Eurocopter AS 355 (Twin Ecureuil) Series
Eurocopter AS 355 (Twin Ecureuil) Series Helicopters
Eurocopter AS 355 (Twin Ecureuil) Series Helicopters
| AD/AS 355/86 Amdt 1 | Tail Rotor Controls | 6/2006 |
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| Applicability: | Model AS 355 E, F, F1, F2 and N, helicopters fitted with stainless steel-caged ball-type yaw controls pre-MOD 072771, part numbers:- 704A 34-130-068 for helicopters with automatic flight control system (AFCS), but with collective-to-yaw control coupling,- 704A 34-130-086 for helicopters without AFCS, and without collective-to-yaw control coupling. |
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| Requirement: | 1. Unless previously accomplished, remove the stainless steel-caged ball-type control and install the new Teflon-caged ball-type control in accordance with instructions specified in Paragraph 2 of the referenced ASB.2. Do not install on the helicopter any stainless steel cage ball type yaw controls as identified in the Applicability section of this Directive.Reference Document: EUROCOPTER AS 355 Alert Service Bulletin (ASB)No. 67.00.26 R2 or subsequent EASA approved revision.Note: EASA AD 2006-081 refers and supersedes DGAC AD F-2005-043. |
| Compliance: | 1. Within 30 days of the effective date of this AD.2. From the effective date of this Directive. |
| This Amendment becomes effective on 8 June 2006. | |
| Background: | This Airworthiness Directive was issued following multiple cases of binding discovered in the stainless steel-caged ball-type yaw controls which may generate increased control loads or a feeling of seizure at the pedal units.This amendment changes applicability with no change to the requirement. |
| The original issue of this AD became effective 9 June 2005. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
28 April 2006