#MASTER REBOOT FLYING MOVIE#
#MASTER REBOOT FLYING SOFTWARE#

So the choice comes down to (a) pressing and holding Button 1 only on the PFD, which will take a few moments to power down the PFD or (2) pressing Buttons 1, 2 and 5 on the PFD only, which turns off the PFD immediately.Īpart from how quickly the PFD turns off, is there a difference between (a) and (b) in what happens inside the HDX, so that if it's done while flying, one would be better than the other? I would be rebooting, so after powering off the PDF, I'd want to turn it back on again as quickly as possible.

Turning the Master switch off in flight is not an option, because doing that will turn off the PFD, the MFD and everything else including my radio. Suppose though I need to reboot my PFD while flying. All three seem to work just fine while on the ground. the flying memory is the only one i have remaining right now but it is so odious to me (even after resorting to a. If there is a problem with one of the many independent systems in the cockpit, I'd guess it's plausible, in some cases, the pilot or engineer's checklists for the problem include some kind of reset operation.There appear to be three ways to reboot an HDX display: turn the Master switch off and then on again press and hold Button 1 until the display turns off, and then press Button 1 again and press Buttons 1, 2 and 5 simultaneously, and then press Button 1 again.

#MASTER REBOOT FLYING MOVIE#

If the in-flight movie system isn't working, I'd expect someone will try turning it off and on again. No, it's not normal part of the pre-flight checklist for the pilot to walk round to the rear of the aircraft, flip a big red switch off and on again and wait for a start-up jingle. An arbitration system compares the outputs and if one of three disagrees, the other two get to determine what happens.

#MASTER REBOOT FLYING SOFTWARE#

Each subsystem may have two, three or more independently created systems with different hardware and with software written by different teams, each doing the same job. The '3 computer' idea comes from the use of redundancy in each critical system. Unlike a typical desktop computer, I'm pretty certain that critical systems on board an airliner are designed to handle multiple failures and keep working, in a degraded or fall-back mode if necessary.Īs I wrote above, large commercial airliners will likely have hundreds or thousands of microprocessors and microcontrollers. Each of the items of avionics equipment will contain several microprocessors, probably running real-time operating systems that are certified for use in aircraft.Ĭritical avionics systems have the ability to reset themselves if they detect problems - for example they will have hardware-based watchdog timers that will restart a processor or system that isn't showing signs of running it's software normally. It is wrong to write about 'the computer' because a modern airliner probably contains hundreds or thousands of microprocessors and microcontrollers.įor example, the seat-back information and entertainment systems almost certainly each contain a microprocessor running some embedded operating system. Is rebooting the computer normal before/during flights? That of course is up to the discretion of the flight crew though. the game with some of the memory doors (like the flying memory) still locked. That's very noticeable and will cause some people to worry so we like to give you a heads up before all of the lights go out and the air conditioning system shuts down. For Master Reboot on the PlayStation 3, a GameFAQs message board topic. Generally the flight crew won't tell the passengers when they need to 'reboot' a computer unless we have to power down the entire airplane.

The safety critical items (like flight control software, etc.) will have multiple redundant systems and often have different versions of software on at least one of the computers 'just in case'. In the vast majority of cases it isn't a safety critical item that we are dealing with (where the software testing is more thorough), but rather a monitoring system.

Since these tests aren't performed in the air, the problem usually doesn't crop up there. Often times in this case, the entire airplane must be powered down in order to reset them all at the same time. Other times, the issue is the communication protocol between two (or more) different computers. Depending on the system, when a check fails, rebooting the computer may be an option to see if it fixes it (similar to rebooting your home computer). During the preflight checks, we check each system according to the recommendations of the manufacturer, and occasionally one of the checks will not pass correctly. Today's modern airplanes have many computers, and sometimes things get out of sync and don't communicate properly.

Master reboot flying