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AD/SUPP/21 - Helicopter External Rescue Systems
Supplementary EquipmentSupplementary Equipment
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Supplementary Equipment
| AD/SUPP/21 | Helicopter External Rescue Systems | 10/2008 |
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| Applicability: | All helicopter external rescue systems (ERS) including, but not limited to, emergency mountain rescue systems installed in accordance with Supplemental Type Approval SH82-3 Issues 1, 2, 3, 4 and 5. |
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| Requirement: | Helicopter external rescue systems are classified as Class D external loads extending below the landing gear and, as such, they require a jettison capability.Accordingly, remove existing non-jettisonable rescue systems or modify with a jettisonable feature approved by Transport Canada.Note: Transport Canada AD CF-98-15 refers. |
| Compliance: | Unless already accomplished, before 31 December 2008. |
| This Airworthiness Directive becomes effective on 25 September 2008. | |
| Background: | In the past, a number of Supplemental Type Approvals (STA), Limited STA (LSTA), and possibly U.S. FAA Supplemental Type Certificates (STC) were granted for the installation of non-jettisonable ERS. Latest Canadian regulations state that a Class D external load can only be carried by a helicopter equipped with a jettisonable system. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
11 August 2008