other oddities
After reading the GPS issue, was interested in what was to be seen on flights takin on the 9th. Nothing of interest appeared to occur which was nice. However, having completed a flight on the 9th, on departure the next day, the radars would not come up. The flight was completed to reposition taking some care to avoid the lumpy bits. Initial checking indicated that the radars were dead (or DED, as applicable). Questioning that, we played with the radar for a while, and found that if we sequenced the systems power up of the radar and GPS, radar worked fine. As the solid state radars are not known for regenerating the magic smoke after auto release, a discussion with the system manufacturer ensued. The OEM was surprised by the behaviour, agreed that solid state units don't exhibit Schrodinger's cat's behaviour. On review, the OEM had a prior history of some 10 failures of this type in 2015 when the system was relatively new, and had introduced a software update to fix the problem. 4 years later, after an overnight, the problem is manifested again. What happened on the 9th?