FAA Supersedes Eclipse Altitude AD, Fix in the Works | Aviation International News

Maintenance and Modifications

FAA Supersedes Eclipse Altitude AD, Fix in the Works

The FAA is superseding an existing airworthiness directive (AD) for the Eclipse EA-500 with

By David A. Lombardo • Contributor

March 16, 2011

The FAA is superseding an existing airworthiness directive (AD) for the Eclipse EA-500 with Pratt & Whitney Canada PW610F-A engines. The existing AD requires operators to limit their maximum operating altitude to 37,000 feet. The new AD would restrict maximum operating altitude to 30,000 feet. The change was prompted by several incidents of engine surge the FAA believes were the result of hard carbon buildup on the static vanes.

According to the FAA, engine surges may call for a reduction in thrust and “decreased power for the affected engine and, in some cases, may result in flight and landing under single-engine conditions.” The FAA also notes it is possible this could affect both engines at the same time, requiring dual engine shutdown.

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