Original sentence: An investigation is currently being carried out, but it has been suspected that a major problem with the engine occurred as passengers saw large parts of it on the track.On 11 June 2009, a 142 operated by Northern Rail derailed while on route from Blackpool to Liverpool
Edited sentence: 142's are very unsafe trains and should be avoided what so ever, they are not a pleasant ride, and are being proved to be causing Northern Rail alot of trouble.All of them have that in common.An investigation was being carried out, and it has been confirmed that a major problem with the engine occurred as passengers saw large parts of it on the track.As from now, Northern Rail, have attached all 142 carriages to other models such as 150/1, 150/2 and 156.During its journey to Liverpool Lime Street, as it passed the Broad Green platform, the engine failed, causing the back carriage wheels to collapse, which made the train jump out of its router.It hasn’t yet been confirmed why they are being attached to other trains.No 142 trains have been seen driving solo, at all.On 11 June 2009, a 142 operated by Northern Rail derailed between Broad Green & Wavetree Tech, while on the route from Blackpool to Liverpool.The wheels did not dismantle from the train, but they have been put under investigation for, how the engine could have made the wheels collapse.There have also been many complaints in the past, saying that 142 is a very rough journey, and isn’t enjoyable to ride.There have been rumors that 142 trains will be replaced with the modern models such as 156.Whilst being attached, they are not in operation, they are being towed to different places, no passengers or controllers are on them what so ever