AD/ENST 28/18 Alternator Field Cable Protection Modification Cancelled (Cth)
AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/ENST 28/18.
Enstrom F-28 Series Helicopters
| AD/ENST 28/18 | Alternator Field Cable Protection - Modification | 9/2009 |
Requirement: | CANCELLED. |
| This AD is cancelled on 27 August 2009. | |
Background: | This unique Australian AD raised in 1977 required a modification to meet the requirements of FAR 23.1357 and obsolete Air Navigation Order 108.32 by installation of an alternator field cable circuit protection device (in-line fuse or circuit breaker) close to the battery master relay connection. Compliance was before issue of a certificate of airworthiness on all aircraft certificated after February 1978, and all other aircraft within 100 hours TIS after This AD has been sufficiently promulgated for the affected helicopters to have been modified by now; therefore this AD is considered to be no longer required. |
James Coyne
Delegate of the Civil Aviation Safety Authority
30 June 2009
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