Cathay Pacific has banned uniformed pilots from wearing yellow ID card holders - the colour that symbolises their industrial action. The ban follows a September edict against the wearing of yellow ribbons and a rebuke in October for pilots whose wives lunched at Cathay headquarters wearing the colour. Yellow represents the pilots' support for 53 colleagues sacked during the course of their industrial dispute over pay and rostering. The colleagues are known as the '49'ers' - the number sacked en masse on July 9. In a notice dated November 20, Cathay's director of flight operations, Ken Barley, banned yellow ID card holders and 'any form of adornment or accessory, which is designed to be worn in protest or could be interpreted as promoting a cause not related to flying duties'. Pilot union leader John Findlay said members had devised the identification card holder - a clip attached to a yellow strap, to be worn around the neck, printed with the word '49'ers' - as a reaction to the yellow ribbon ban. 'I thought we had suddenly seen an influx of supporters of the American football club the San Francisco 49'ers,' Mr Findlay joked. A Cathay spokeswoman, Rosita Ng Lai-ting, said the company wanted pilots to wear uniforms without the yellow ID card holders. Mr Findlay, general secretary of the Aircrew Officers' Association, said he did not know what the company was trying to achieve. 'This is just another attempt by the management of Cathay Pacific to deny to themselves that the pilots of Cathay Pacific are still incensed at the unfair dismissal of many of their colleagues,' Mr Findlay said. 'Cathay's management should be in no doubt that this problem is not going away for them.' The pilots will meet next week to review the decision to suspend their work-to-rule action, following the company's continued refusal to negotiate with them.