Thats a nice presentation. So are you saying that current JAR states that operators may take relief from thrust reverse or not when landing on slippery runways? The problem I have is that we are not allowed to use advisory QRH distances for in flight planning purposes and that we have to use certified, no reverse figures at both preflight planning stage and in flight. This means an increase of approx 600 metres on a MED runway, which means we wont be going to some of our destinations anymore unless they can get a MED/GOOD action, at the very least. This is not possible (not achieved) in Northern Europe very often in my experience. Previously we did allow for "Detent Reverse" thrust whatever detent meant?
Has EASA/JAA told operators to preflight/inflight only use certified no reverse performance?