FAA Issues New Airworthiness Directive for Lycoming Engines: Essential Inspections and Compliance Guidelines

November 5, 2024 – The FAA has released Airworthiness Directive (AD) 2024-21-02, effective December 5, 2024, mandating enhanced inspections for certain Lycoming engine models due to safety concerns surrounding connecting rod bushings. This directive stems from incidents of connecting rod failures, which led to uncontained engine failures and in-flight shutdowns. Affected engines must now undergo rigorous oil inspections and, if necessary, connecting rod bushing replacements to prevent further risks.

Key Points of AD 2024-21-02

The AD focuses on Lycoming engines containing specific connecting rod assemblies, which may contain non-conforming bushings that degrade over time. Inspections must include:

• Repetitive Oil Inspections: Visual checks for bronze metal particulates in oil filters and screens. This can be performed during regular oil changes and will identify signs of bushing degradation.
• Connecting Rod Bushing Inspections: If metal particulates are detected, a detailed inspection of the rod bushings is required. Any worn or damaged bushings must be replaced.

Lycoming previously addressed these issues through its Service Bulletins 630 and 480F, recommending similar inspections for engines potentially containing non-conforming parts. However, this AD now enforces compliance for all affected engines.

Lycoming’s Response and Recommendations

Lycoming has provided support to assist operators with identifying if their engines fall within the affected date range. Customers are encouraged to utilize Lycoming’s Engine Serial Number History Search on their website and consult their technical support team for any clarifications on inspection and maintenance requirements. This response highlights Lycoming’s commitment to maintaining the highest safety standards for their engine users and aligns with previous steps taken to mitigate risks from potentially faulty components​(AD 2024-21-02)​(Response to Inquiry - A…).

Why Choose Air Power, Inc. for Your Lycoming Parts Needs

As a leading distributor of Lycoming engines and parts, Air Power, Inc. is your premier choice for sourcing components needed to comply with AD 2024-21-02. With a reputation for reliability and a deep commitment to customer support, Air Power offers a streamlined ordering process, comprehensive inventory, and dedicated expertise in Lycoming products.

Advantages of Ordering from Air Power, Inc.:

1. Wide Selection of Genuine Lycoming Parts: As the world’s largest distributor of Lycoming engines, Air Power stocks an extensive array of genuine parts, ensuring you can quickly source the items required to meet compliance needs.

2. Specialized Support for AD Compliance: Air Power’s knowledgeable team can assist with selecting the correct parts for this AD, answer questions about Lycoming service bulletins, and guide you through Lycoming’s warranty support and technical resources.

3. Trusted by the Industry: With a reputation built on quality and reliability, Air Power supports both small and large aviation operations worldwide, providing parts and support trusted by aviation professionals globally.

For any questions about AD 2024-21-02 compliance, parts availability, or Lycoming engine maintenance, reach out to Air Power, Inc. at [Air Power Contact Information] and ensure your operations remain safe and compliant.