Riddle me this, Batman.... GPS stopped counting down

[Unit74]

Scenario:

Level 6500 ft, TAS 130 kts, gS 88kts.


Over the course of an hour and a half, the 430w ETE timer just stopped. It wasn't broken, it'd just stop counting down. Never saw that before.

Any idea why, if I'm showing a forward ground speed, the timer would stop. I pushed over to a 1k min decen and GS went up to 110kts. Timer moved faster than before. Level out, moved like pond water.

 

[txflyer]

How long since you checked for software update?

Oops, you said it's a 430. Maybe internal battery?

Nav/data current?

 

[Unit74]

Software was done in Sept with a GDL install. Jep data is on the current cycle. The WAAS was done in 2012, so I'm not sure if they did it then or not.

 

[Hank S]

Just wait. One day you'll be fighting an increasing headwind and it will count up instead of down. The joys of knowing too much.

When ETE is over an hour, it displays Hours:Minutes, and as speed changes, ETE recalculates based on current speed. Watching it increase while not touching power is a bad feeling.

 

[Unit74]

Just wait. One day you'll be fighting an increasing headwind and it will count up instead of down. The joys of knowing too much.

When ETE is over an hour, it displays Hours:Minutes, and as speed changes, ETE recalculates based on current speed. Watching it increase while not touching power is a bad feeling.

Yea... That's what I was dealing with yesterday. I was at 6500 and decided I was seeing a 40kt head wind. The decent was to try and get some grou d speed up. It was no better at 4500 than 6500. I was hoping I was not entering the twilight zone! Time stopped. I kept looking at the ground hoping I was not hovering.

 

[iflyvfr]

Thanks, your headwind was my tailwind yesterday. Coming eastbound from Indiana yesterday I saw this at 2400 RPM in a 400' FPM descent. Now that may not be remarkable for most of us here, but this was in an O300 172G. A personal record.