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AWB 31-006 Issue 1 - Metro 23 Engine Over Torque Recording in the FDR

To make operators and maintainers of SA227 aircraft aware of an issue with recording of engine over torque parameters. The design of the Metro 23 engine torque recording system does not directly record values of engine torque over the range from 100 to 120% into the Flight Data Recorder (FDR).
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