AD/SD3-60/21 - Landing Gear Warning Horn
1AD/SD3-60/21 - Landing Gear Warning Horn
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Short SD3-60 Series Aeroplanes
AD/SD3-60/21 Landing Gear Warning Horn 12/86
Applicability: All models SD3-60 aeroplanes with S/Nos. SH3601 through SH3689. 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-
60 Service Bulletin SD360-32-23.
- 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.