Commonwealth legislation

AD/LEARJET/31 - Handling Qualities and Aerodynamic Stall Characteristics - Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Directive requires operators of certain Gates Learjet Model 23/24/25 aircraft (specified serial-number ranges) with unmodified wings to install one of two approved wing modification kits (AMK 83-4 or AMK 84-5) by 1 October 1986. Issued to address undesirable handling near flight-envelope limits, it leaves kit choice, costs, scheduling and verification to the aircraft owner/operator and cross-references a related FAA AD for additional information.

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AD/LEARJET/31 - Handling Qualities and Aerodynamic Stall Characteristics - Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Gates Learjet 24 & 25 Series Aeroplanes

AD/LEARJET/31 Handling Qualities and Aerodynamic Stall

Characteristics - Modification

Applicability: All model 23 with S/Nos 23-003 to 23-099.

All model 24 with S/Nos 24-100 and subsequent. All model 25 with S/Nos 25-003 to 25-061.

25-067 to 25-201.

25-204 and subsequent.

7/85

With unmodified wings.

Requirement: 1. Install modification kit AMK 83-4, or

2. Install modification kit AMK 84-5.

Note: FAA AD No 80-19-11 R1 refers.

Compliance: Before 1st October, 1986.

Background: GLC and the FAA have recently found evidence of undesirable handling characteristics at the limits of the flight envelope.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.