An investigation has been launched after a vintage tram became "out of control" down a mountain.
The crew on a Snaefell Mountain Railway tram travelled about 180ft (54m) before switching from a modern braking system to an older one on Friday afternoon.
Passenger Nick Douglas said it was a "frightening experience" with the driver "wrestling to gain control".
Transport Chief Ian Longworth said it was "business as usual" for the crew. A health and safety probe is under way.
Mr Longworth said the crew is trained to switch to the older, and original, Fell braking system if the modern one fails.
Mr Douglas, from Northern Ireland, said: "It was a colossally frightening experience for me, my wife, my son and my grandson who all travelled with me - we were certain that a grisly fate awaited us."
According to Mr Douglas, the tram crossed straight through the railway's intersection with a main road at a point known as The Bungalow.
"I was very aware of how serious it was while it was happening - you only had to look at the drivers' eyes".
No-one was hurt in the incident.
Mr Longworth said: "It might have seemed exciting for the passengers but for the crew involved it was just business as usual."
The spokesman for Isle of Man's Department of Infrastructure said: "The matter is being treated very seriously and the department would like to apologise to those passengers who were affected by the incident."
Last year a Snaefell Mountain Railway electric tram was destroyed after derailing and crashing in the same area, no-one was on board at the time.