Squawk Box

October 2003 Issue

Squawk Box 10/03: Turbo Troubles

Clamp on some Mooney exhaust systems proves troublesome for turbo engines

The following information is derived from the FAA’s Service Difficulty Reports and Aviation Maintenance Alerts.

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The FAA is encouraging owners of turbocharged Mooneys to inspect the V-band clamps attached to the turbochargers. The FAA’s special airworthiness information bulletin cites a recent fatal accident of a Mooney M20M Bravo in which the tailpipe apparently separated from the turbochargers, allowing hot exhaust gases to be expelled into the engine compartment. The pilot reported smoke and fire in the cockpit before the aircraft crashed short of the airport, killing both aboard. Mooney recommends replacing the multi-segmented V-band clamps at 2,000 hours – the engine’s T...

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