To put it in a nutshell the second prototype G-ALRX force landed on the mud flats on the 4th February 1954. No 3 engine oil temperature rose seven minutes after take-off and the engine was shut down. It was relit once the oil temp had fallen, but following a stall manoeuvre it rose again A pinion in the reduction gear stripped it's teeth, the low pressure turbine ran away and exploded. Pieces pierced the oil tank causing an intense fire which could not be contained. No 4 engine was shut down as a precaution and Bill Pegg decided on an immediate forced landing on the Severn Estuary mudflats.