Commonwealth legislation

AD/LEARJET/21 - Aft Engine Beam - Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive requires operators of Gates Learjet Model 25 serial numbers 25‑266 through 25‑300 to inspect the aft engine beam forward web lightening hole flanges for cracks, following Gates Learjet Service Bulletin SB 25‑298.

The Civil Aviation Safety Authority enforces compliance; affected owners/operators bear inspection, repair and downtime costs to mitigate structural risk.

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AD/LEARJET/21 - Aft Engine Beam - Inspection

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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/21 Aft Engine Beam - Inspection 5/80

Applicability: All models 25 with S/Nos. 25-266 to 25-300. Document: Gates Learjet SB 25-298.

Compliance: As per requirement document.

Background: To inspect the aft engine beam forward web lightening hole flanges for cracks.

Source text

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