Beechcraft King Air 90 — Service Bulletins

This document is an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) of Australia, specifically addressing the Beechcraft King Air 90 and related models. The directive mandates inspections and potential replacements of the main landing gear torque knees due to reported fatigue cracks that could lead to separation of the landing gear from the aircraft. The AD outlines specific compliance timelines and procedures to ensure the safety and airworthiness of the affected aircraft. It is crucial for operators and maintenance personnel to adhere to these directives to mitigate risks associated with landing gear failures.

• Inspect main landing gear torque knees for fatigue cracks within 100 hours after April 18, 2002.
• If cracks are found, replace the torque knees as per Service Bulletin SB 32-3116.
• Repetitive inspections are not required if both torque knees are replaced with new parts.
• Compliance intervals for inspections are not to exceed 1,000 hours of service after the initial inspection.
• The directive applies to specific serial numbers of the Beechcraft King Air 90 series.