The US Federal Aviation Administration has issued an airworthiness directive (AD) grounding all Lycoming 540-series engines until a possible faulty retaining bolt is replaced. The AD affects around 3,900 engines.
Source: Flight International
The US Federal Aviation Administration has issued an airworthiness directive (AD) grounding all Lycoming 540-series engines until a possible faulty retaining bolt is replaced. The AD affects around 3,900 engines.
Source: Flight International