5 ms·
So the patch will be physical, I imagine. ("Apply this very expensive special tape from (e.g.) 3M here and here.")
by lysace 11mo ago
So the patch will be physical, I imagine.
("Apply this very expensive special tape from (e.g.) 3M here and here.")
- SteveNuts 11mo agoI believe most A320s can do OTA software updates (including dowgrades)
- lxgr 11mo agoOTA? That sounds extremely implausible.
- sam1714 11mo agoIt's a thing, but it's not universal on the A320. Original 1984 critical hardware: the box has an EEPROM module, you swap it on the plane. FMS (which requires monthly nav data updates) and all modern hardware: the box can be updated over the ARINC 429 serial bus or Ethernet (newer systems/planes), called dataloading Dataloading had different methods. A320s through the 2000's, most airlines had a 3.5 floppy disk drive on board (Airbus FDDU), and a mechanic fed floppies in. It was slow. Evolution of that was a USB port that took a flash drive. Most current planes of older models just got rid of on-board dataloading. The mechanic uses a laptop with a cable or purpose-built tablet and plugs into a port. The mechanic can download the software via Wi-Fi or cellular onto the device: https://www.teledynecontrols.com/products/hardware-systems/portable-dataloaders https://www.teledynecontrols.com/products/hardware-systems/p... Airlines can indeed buy a on-board box that connects to Wi-Fi and LTE at the gate which downloads software. This is standard for the latest models that produce more data (A350, 787), but optional for older models. The mechanic still needs to go to the plane and push the buttons to tell it to load. https://www.teledynecontrols.com/products/dataloading/eadl-xs https://www.teledynecontrols.com/products/dataloading/eadl-x... https://www.teledynecontrols.com/products/hardware-systems/groundlink-comm+ https://www.teledynecontrols.com/products/hardware-systems/g...
- lxgr 11mo agoWow, I stand corrected. I thought it was still all floppy disks (or emulators thereof) for software, if not for navigation data etc. Thank you!
- t0mas88 11mo agoI've read the EASA emergency airworthiness directive, it's only a software change.
- lysace 11mo agoA software change that remedies solar radiation issues? Cool.
- mirekrusin 11mo agoInstead of 3 copies make 7 for majority vote?
- butvacuum 11mo agoBest explanation I've seen (and claims to be from a published but not public report on it), is that their 3 way consensus didn't smooth over repeated wildly wrong outputs correctly. Concestency problem strikes again.
- butvacuum 11mo agoEasy enough to imagine. Something improperly was judged to not need concencus, running the calculation twice, or some other software mitigation. Revise process to include mitigation.