Created Thursday, Apr 20th 2023 11:17Z, last updated Thursday, Apr 20th 2023 11:17Z
A Porter Airlines de Havilland Dash 8-400, registration C-GLQE performing flight
PD-2942 from Boston,MA (USA) to Toronto City,ON (Canada), was climbing out of Boston's runway 33L when the crew observed the right hand propeller showing higher rpm than commanded while climbing through 5000 feet. The crew stopped the climb at about 8000 feet, shut the engine (PW150A) down and returned to Boston for a safe landing on runway 33L about 35 minutes after departure.
The Canadian TSB reported: "The engine data was downloaded and it was found that the #2 engine power lever exceeded the power detent during climb out. The Propeller Electronic Controller (PEC) logic assumes that the pilot needs full emergency power and correctly drove #2 propeller to 1020 RPM even though the propeller condition lever remained at 900 RPM. Aircraft was returned to service with no fault found."
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