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Airworthiness Directive

AD 2006-20-09 71 FR 57407 Active

Federal Aviation Administration · 14 CFR part 39

Federal Register (opens in a new tab)

FR document
E6-15958
Amendment
39-14778
Published
2006-09-29
Effective
2006-11-03
Models covered
4

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2006-20-09 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2006-20-09

FR doc E6-15958 · 71 FR 57407

AD 2006-20-09Published 2006-09-29Effective 2006-11-03

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires replacing certain crankshafts.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 series reciprocating engines. This AD requires replacing certain crankshafts. This AD results from reports of 23 confirmed failures of similar crankshafts in Lycoming Engines 360 and 540 series reciprocating engines. We are issuing this AD to prevent failure of the crankshaft, which will result in total engine power loss, in-flight engine failure, and possible loss of the aircraft.

More directives for Lycoming IO-580

  1. AD 2012-19-01 Airworthiness Directives; Lycoming Engines Reciprocating Engines Effective 2012-10-24

All Lycoming IO-580 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2006-20-09 (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 4 models in our index