Airworthiness Directives; Lycoming Engines
Transportation Department; Federal Aviation Administration: final rule. Dated 69 days ago, it serves as a historical benchmark. Score 30/100. As of 2026-11-04, from Federal Register API (Office of the Federal Register).
Data as of · Compiled by Zalwin from Federal Register API (Office of the Federal Register)
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| Field | Value |
|---|---|
| Agency | Transportation Department; Federal Aviation Administration |
| Type | Final rule |
| Action | Final rule; request for comments. |
| Published | 2026-08-28 |
| Effective | 2026-09-14 |
| Comments close | 2026-10-13 |
| Significant | No |
| CFR parts | 14 CFR 39 |
| Summary | The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (Lycoming) Model O-235, O-540, and IO-540 engines with a certain piston pin installed. This AD was prompted by several reports of piston pin failure that resulted in metal particulate contamination in the engine oil and engine failure. This AD requires replacement of the affected piston pin with a part eligible for installation and, for certain engines, oil change and visual inspection of the engine oil filter, oil pressure screen, and oil suction screen for metal particulates. This AD also prohibits the instal |
| Document number | 2026-17584 |
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- Source agency: Federal Register API (Office of the Federal Register)
- Record date: 2026-08-28
- Data refreshed: 2026-11-04
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LIVE PUBLIC DATA Source: Federal Register API (Office of the Federal Register) · Last refreshed: Wed, 04 Nov 2026 21:40:49 GMT
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Peer benchmark and outreach value: Transportation Department; Federal Aviation Administration and 366 federal-aviation-administration peers
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30 / 100 Action Urgency Score
- Final rule.
What is the FederalRegisterCompliancePulse record for Transportation Department; Federal Aviation Administration?
Transportation Department; Federal Aviation Administration published a final rule on 2026-08-28, effective 2026-09-14, comments due 2026-10-13: Airworthiness Directives; Lycoming Engines.
How does Transportation Department; Federal Aviation Administration compare to other FederalRegisterCompliancePulse records?
It is 69 days old; check the official source for later updates before acting. Its Action Urgency Score of 30/100 is modest; treat it as background rather than a priority.
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