Complex sentence: On retirement after 47 years as a pilot, Jonsson had logged 36,000 hours, and focused on devoting tme to his wife, to fishing, watercolour painting, and writing.
Split into simpler sentences: On retirement after 47 years as a pilot, Jonsson had logged 36,000 hours. In retirement, Jonsson focused on devoting time to his wife, to fishing, watercolour painting, and writing.