The rollercoaster I was on hurtled backwards and crashed. My friend didn't make it - and my life changed for ever

In May 1972, Liz Haigh-Reeve and her friend Alison Comerford were on the Big Dipper at Battersea Park when it collapsed due to over 50 faults. Haigh-Reeve survived, feeling survivor's guilt, impacting her life profoundly.