** Aerospace parts maker's shares down more than 10 pct at C$17.46 after results
** Company reported lower-than-expected Q2 profit and revenue late on Tuesday, hurt by fall in demand for its proprietary products and weakness in defence market
** TD securities downgrades stock to 'hold' from 'buy'
** The other two brokerages covering the stock, rate it 'buy' or higher
** Up to Tuesday's close, stock had risen 67 pct in the last 12 months