Geoffers.
It probably does meet the letter of the law - JAR-OPS 3.660 just requires " a voice warning .... operating below a preset height with a visual warning capable of operating at a height selectable by the pilot". It doesn't say what the preset height is to be, but I don't think 150' is unreasonable. Presumably there are radalt bugs which when descended below, bring on some sort of caption or light?
If so then it does meet the regs but seems to me retrograde compared to what we are used to on the N Sea ("Check Height" call). Its a pity to see major operators "forgetting" where these various requirements came from - ie the accidents that created the regs. On the other hand its also a pity that JAR-OPS 3 is so vague in this area. I recall that the reg came after the N Sea operators implemented fleetwide fitments of AVAD. In those days it was the operators and oil companies leading the way in safety. These days its more a case of everything done to the minimum requirement to save money, though I would say that ultimately its the new generation of oil companies that are to blame for this culture.
When are you going to post some video of the 139 EFIS in operation?
HC