AD/LEARJET/28 - Automatic Flight Control Systems - Inspection and Modification

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

Legislation au F2006B11145 In force Legislative Instrument

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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/28  Automatic Flight Control Systems - Inspection and Modification

Applicability: All models 25, 25A with S/Nos. 25-003 thru 25-066 except 25-061.

 

All models 25B, 25C with S/Nos. 25-061, 25-067 thru 25-205.


4/83

 

Requirement: 1. Modify the flight control systems in accordance with the following modification kits:

 

MODEL MODIFICATION KITS

 

25B and 25C AMK 81-9, *AMK 81-8 and AMK 80-13 Change 3.

 

25 and 25A AMK 81-10 Change 1, *AMK 81-8 and AMK 80-13 Change 3.

 

* Kit AMK 81-8 does not apply unless Kit AAK 76-4 has been installed.

 

2. Inspect the stall warning accelerometer in accordance with Gates Learjet Service Bulletin 23, 24, 25-301B.

 

Note. FAA AD 82-01-04 Amendment 39-4296 refers.

 

Compliance: On or before 30 April 1984.

 

Background:  This action is necessary to reduce the hazard created by a possible malfunction which if not detected could result in a hazardous flight attitude.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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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.