> That intermittent vs continuous NEVER was part of the discussions about runaway trim. I don't know where that notion comes from. It doesn't make any sense. I

> That intermittent vs continuous NEVER was part of the discussions about runaway trim. I don't know where that notion comes from. It doesn't make any sense. It comes from Boeing's checklists: https://i.stack.imgur.com/cRG4J.jpg https://i.stack.imgur.com/cRG4J.jpg It makes perfect sense, because continuous operation identifies a fault condition. Under normal conditions, automatic systems may intermittently move the stabilizer, but never continuously. It may be faulty when moving on its own, but if it moves continuously without input, it's definitely faulty. That's where the name cames from: runs away into physical stops.