Federal Register of Legislation
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES
Short SD3-30 Series Aeroplanes
AD/SD3-30/20 Landing Gear Warning Horn 12/86
Applicability: All models SD3-30 with S/Nos. SH3002 through SH3107 and SH3109 through SH3120.
Requirement: 1. Upon replacement of Lucas Horn P/No. V.0603L with Keystone Horn P/No. AC155F, relocate mounting of horn according to the requirements of Shorts SD3- 30 Service Bulletin SD330-32-114.
2. For aeroplanes previously fitted with Keystone Horn P/No. AC155F, relocate mounting of horn according to the requirements of the document referenced in Para 1 above.
Compliance: For Para 1: Upon replacement.
For Para 2: Within 30 hours time in service after 31 January 1987.
Background: Reports have been received that the Keystone P/No. AC155F landing gear warning horn is inaudible when located between station 3 and 13.45 on the aircraft top centre line.
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