The Health and Safety Executive (HSE) has prosecuted global defence company BAE Systems, after an employee died in an explosion at the company’s site in Chorley, Lancashire.

In March 2005, Lynda Wilkins was working alone with the sensitive primary explosive lead styphnate when an explosion occurred. The HSE has been unable to determine the exact cause of the explosion because Mrs Wilkins was alone at the time. However, the HSE investigation found that the company had allowed unsafe working procedures to develop by providing too little supervision and monitoring.

On Thursday (14/01/10) at Liverpool Crown Court, BAE Systems of Farnborough Aerospace Centre in Hampshire pleaded guilty to breaching Section 2(1) of the Health and Safety at Work etc Act 1974 by failing to ensure the safety of its employees. The company was fined £80,000 and ordered to pay £118,000 costs.

After the hearing, HSE inspector Colin Hutchinson said:

‘This was a tragic incident and my sympathies go to Lynda Wilkins’ family. Although we have been unable to conclude what caused the explosion, it is clear that BAE Systems’ failings contributed to her death.

‘The substance she was using is known to be extremely sensitive and must be handled carefully. BAE Systems failed to ensure the process was properly supervised and monitored.

‘Explosives companies must learn from this incident by making sure their safety procedures are both sufficient and rigidly followed to avoid needless loss of life in the future,’ said Mr Hutchinson.

Lead styphnate is a lead salt and can become unstable when dry, so is usually stored wet. Experts say it can explode if subjected to friction or sudden shock – and also reacts with certain other substances. Lead styphnate is also harmful if ingested. Protective wear such as goggles, overalls and gloves should be used when it is handled – and it should be used in a well ventilated area.

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