AD/LEARJET/5 - Airspeed - Machmeter Indicator Presentation - Modification

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B11157 In force Legislative Instrument

Legislation content

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Gates Learjet 24 & 25 Series Aeroplanes

 

AD/LEARJET/5 Airspeed - Machmeter Indicator

Presentation - Modification

Applicability: Learjet Model 24D S/Nos. 266 and 279.


6/74

 

Requirement: Inspect and where necessary modify airspeed-machmeters to ensure that the Vmo limit is marked on the dial either by a red radial line at 306 knots for instruments without coloured sectors, or by a red arc extending from 306 knots to 700 knots for instruments with coloured sectors. All other limit marks or coloured sectors above 306 knots shall be removed.

 

Note 1: Arrange with DoT to amend the Aircraft Flight Manual to comply with the aircraft installation if any change is necessary.

 

Note 2: If the airspeed-machmeters have presentations identical to that shown on the Gates Learjet 24D Flight Manual Page 1-16 FAA-approved 6.25.70 Change 7, this page will be used in the Flight Manual. Such a presentation is without coloured sectors and has radial red lines at 306 knots and at .82 mach.

 

Compliance: Within 300 hours time in service after 28 June 1974.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interactions

Authorises

All Versions

Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.