I think B737NG was referring to the "Keith Chaplin" incident in 1999. Chaplin, a line engineer, lost his lower right arm while working on a Ryanair Boeing jet.
Ryanair were taken to court, and roundly criticised by Judge Sean McBride for allowing their safety standards to lapse to an alarming degree. The airline, which pleaded guilty to four charges under the Health and Safety Act, was fined £3,750 for the breaches. and had to pay costs of £1,000.not perhaps the heaviest penalty levied!
I have some sympathy with asheng, who says he knows exactly what happened at Beauvais. However, it is the "why" not the "what" that needs analysis and explanation.
I hope the relevant authorities will seek diligently to establish that all reasonable steps were in fact taken to prevent injury to those carrying out the work. If not, then they must take appropriate action.