I was on board the Sea King from Boulmer that was sent to find it. (student helicopter crewman = extra eyes) We spent a very long day looking over the search area, including refuelling on HMS Leedscastle to extend the sortie. Beyond a slick of POL, nothing was found. There were no H&S 'warnings' and no conspiracy theories. There was no audible evidence that the seats had been initiated. I didnt take notice of any follow up events or evidence but as far as the SAR crew on the day was concerned, they gave 100% before conceding that the rescue sortie was over and the subsequent wreckage recovery phase began. The concentrated slick and knowledge of tides would have been sufficient to narrow down the actual crash site to pretty accurate L&L co-ordinates.