| Versailles rail accident | |
|---|---|
 1842 sketch of the derailment and fire | |
| Details | |
| Date | 8 May 1842 |
| Location | Meudon, Paris |
| Coordinates | 48°49′06″N 02°13′52″E / 48.81833°N 2.23111°E |
| Country | France |
| Cause | Broken axle |
| Statistics | |
| Trains | 1 |
| Deaths | 52–200 |
| Injured | Hundreds |
| List of rail accidents (before 1880) | |
On 8 May 1842, a train crashed in the cutting between Meudon and Bellevue stations on the railway between Versailles and Paris, France. The train was travelling to Paris when it derailed after the leading locomotive broke an axle, and the carriages behind piled into it and caught fire. It was the first French railway disaster and the deadliest in the world at the time, causing between 52 and 200 deaths, including that of explorer Jules Dumont d'Urville. The derailment led the French to abandon the practice of locking passengers in their carriages.
Metal fatigue was poorly understood at the time and the disaster led to systematic research into the problem.