Narrative:

Approximately 10 - 15 minutes after departure; [I] started hearing engine backfire plus smoke coming into the cabin. Requested priority handling and returned to land at ZZZ on xxl. Right alt smelt of burnt rubber/smoke- no irregular voltage/amp indication in cockpit. Waiting for mechanical inspection.

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Original NASA ASRS Text

Title: C310R pilot reported engine problems and smoke in cabin after takeoff resulting in a return to the departure airport.

Narrative: Approximately 10 - 15 minutes after departure; [I] started hearing engine backfire plus smoke coming into the cabin. Requested priority handling and returned to land at ZZZ on XXL. Right alt smelt of burnt rubber/smoke- no irregular voltage/amp indication in cockpit. Waiting for mechanical inspection.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.