FAA’s Final Rule — Replace Those Crankshafts

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The FAA on Friday published its final version of a controversial rule affecting crankshafts in 3,774 Lycoming 360- and 540-series engines. The Airworthiness Directive (AD), effective Nov. 3, requires owners to replace the crankshaft either at normal overhaul, when the crankcase is split for any reason, or within 12 years of the time the crankshaft was put into service. Replacement parts will cost about $16,000 per engine. Lycoming is offering to reduce that price to $2,000 for three years. If the routine overhaul is done at the Lycoming factory, the crankshaft will be replaced with no additional charge. But that hasn’t satisfied all owners, who note that in a previous crankshaft AD, the company bore the entire cost of repair. And, so, there’s the court system. One owner in California has filed a class-action suit calling for Lycoming to do the same this time. Lycoming has declined to comment on that suit.

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