Shortly after becoming Boston’s new fire chief, Steve E. Abraira decided to do something that is rarely done in a department that dates to the 1600s.
He made a major policy change.
In the fall of 2012, he ended a Boston practice of letting firefighters go alone to the roof of a burning building and required that at least two go up together.
But the change set off an instant rebellion among most of his 14 deputy chiefs, who said Abraira was restricting how they allocate tasks and manage fires.
In June, Abraira quit as discord in the department came to light.
“It was a hell for a year and a half,’’ said Abraira. “I thought I was in the twilight zone.” Full story for BostonGlobe.com subscribers.