I would suggest it is the same reason as the captain's altimeter seems to be unlit. They are masked by the radalt warning light.
Of course any other helicopter operator would wonder what we are talking about, not knowing Bristow's unique instrument layout; though it would appear completely sensible to a 'captain in the LHS' fixed wing driver.
Last edited by Fareastdriver; 12th Aug 2011 at 15:47.