PprophetBirdman Posted Monday at 04:28 PM Report Posted Monday at 04:28 PM Has anyone else seen this failure? Installed in 3/2023 with 243 hours on it.
PT20J Posted Monday at 05:48 PM Report Posted Monday at 05:48 PM If it doesn't clear with a power cycle, and all the connections are sound, a trip to a Garmin dealer is the solution.
PprophetBirdman Posted Monday at 11:33 PM Author Report Posted Monday at 11:33 PM 5 hours ago, PT20J said: If it doesn't clear with a power cycle, and all the connections are sound, a trip to a Garmin dealer is the solution. It did clear. The dealer said they would need to run some tests. It happened after the GFC500 did some funky things when climbing in IAS mode and descending in VS.
PT20J Posted Tuesday at 03:31 AM Report Posted Tuesday at 03:31 AM 3 hours ago, PprophetBirdman said: It did clear. The dealer said they would need to run some tests. It happened after the GFC500 did some funky things when climbing in IAS mode and descending in VS. Makes sense since the GFC software resides and executes in the GI 275. The GI 275log file should show what errors occured. 1
wombat Posted Tuesday at 12:32 PM Report Posted Tuesday at 12:32 PM Did the AI still track the horizon? Did the message just pop up unexpectedly? I'd be a little concerned if that happened while on an approach, but they did provide a nice big 'back' button that would probably bring the screen back to normal.
PprophetBirdman Posted Tuesday at 01:01 PM Author Report Posted Tuesday at 01:01 PM 26 minutes ago, wombat said: Did the AI still track the horizon? Did the message just pop up unexpectedly? I'd be a little concerned if that happened while on an approach, but they did provide a nice big 'back' button that would probably bring the screen back to normal. It happened on initial descent for the approach, it wasn’t holding VS, disconnected and hand flew it in.
wombat Posted Tuesday at 04:33 PM Report Posted Tuesday at 04:33 PM The autopilot wasn't working, but it sounds like the attitude indicator functionality was still working OK?
dkkim73 Posted Tuesday at 11:00 PM Report Posted Tuesday at 11:00 PM 6 hours ago, wombat said: The autopilot wasn't working, but it sounds like the attitude indicator functionality was still working OK? That would seem to be a pretty important question. I keep seeing people advocating these, or G5's, and they're very impressive in terms of features. But I wonder. I feel so much better with a mechanical backup, which just flops over or fails to erect when it's not happy...
Slick Nick Posted yesterday at 12:01 AM Report Posted yesterday at 12:01 AM 59 minutes ago, dkkim73 said: That would seem to be a pretty important question. I keep seeing people advocating these, or G5's, and they're very impressive in terms of features. But I wonder. I feel so much better with a mechanical backup, which just flops over or fails to erect when it's not happy... Exactly this. I fly IMC all the time in a few aircraft types, and “steam gauges” have always been reliable. At least if a vacuum pump quits you have an electric backup. What’s the backup when software glitches out? 1
Will.iam Posted 15 hours ago Report Posted 15 hours ago On 12/9/2025 at 6:01 PM, Slick Nick said: Exactly this. I fly IMC all the time in a few aircraft types, and “steam gauges” have always been reliable. At least if a vacuum pump quits you have an electric backup. What’s the backup when software glitches out? That same electrical backup you are using with the vacuum gyro.
Slick Nick Posted 4 hours ago Report Posted 4 hours ago 11 hours ago, Will.iam said: That same electrical backup you are using with the vacuum gyro. It’s an electrical vacuum pump, but still driving the same gyro instrument. If the instrument itself has failed as in the case above, doesn’t do you any good.
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