I can't get the answer to my question on tech issues but it seems JEX have now realised you can't fly a J31 for 140 hours a month (including SOU route)without tech problems and schedule disruption. The new mark2 timetable needs 2 aircraft every day as one aircraft will be cooling it's heels in ABZ all day. This'll improve reliability no end but you'll never get away from the fact that the jetstreams an old lady, designed over 40 years ago as the Handley Page 137 in 1965 (It bust HP) and the very last one was made 15 years ago. As well as good base maintenance you need a good line man to fettle them every day. i hope JEX have got one in BLK as even 70 hours a week will throw up lots of little snags.