Blackbird Sims / Milviz Forum Archive

Hello,

On landing the 350i today, I had a Beep Beep Beep etc alarm horn that would not turn off. Even continued after shutdown and battery off !

No master caution lights flashing.

Any idea what this might be and how to extinguish it please?

The turquoise alt value at the top right of the PFD was flashing, but dont know if they are related.

Any advice much appreciated.

Andrew

Cabin altitude alert probably? Where were you landing?

Thanks for replying.

East Midlands Airport - 93m

Andrew

Hi,

Did you check your yoke’s clock?
It seems to be its timer countdown alarm.

Tomas

Hi Thomas,

Thanks for getting back to me - absolutely love your aeroplane btw.

No I didnt check that, though I didnt know it existed and wouldn't know how to use it. Can't find it refered to in the manual and cant seem to get a countdown to start, only a count-up on 'SEL' ET then 'CTL?

I will try to figure out how to countdown and report back.

Thanks

Andrew

Nope, can't find it.

Can anyone advise me how to operate the countdown clock on the yoke please?

Andrew

Hi,

Here is the doc:
Clock's beeps and alarms are powered by Hot Battery Bus and therefore can only be silenced by using clock's own buttons.


Tomas

Thanks Thomas,

Are thereany other documents like this, which augment the original downloaded manual please?

Need all the help I can get to tame this beauty!

Best wishes

Andrew

Hi again Thomas,

No, its definatly not the Yolk Clock countdown alarm.

Damn hard to slow this aeroplane on approach. I dropped the gear at 180kts on approach to EGPH, could it be an overspeed alarm for that/ is there an alarm programmed for that? Once again, the altitude set in the PFD (top right) starts flashing at the same time.

Whatever it is it won't stop, even after I turn off everything in the cockpit, battery etc!

Any further ideas?

Andrew

Hi Andrew,

Please test Overspeed, Stall speed and Ldg Gear alarms using switches in Copilot's panel, and tell me which one is most similar to what you heard.

Thanks

Tomas

Hi again Tomas,

Sounds like the Landing Gear Warn Test alarm thats sounding to me. Definaly not Overspeed or Stall or Cabin Diff.

Andrew

Andrew,

I'm sorry I cannot reproduce the issue you experienced. Tried different situations and in all cases I was able to stop the LG alarm.
If you could record a short video, in case the problem is recurrent to you, that would help a lot.

Thanks!

Tomas

How are you cancelling the alarm please Tomas?

Andrew

Hit BRAKES (.) in flight to cancel any alarm sounding.

Tomas

Hi Tomas

Trying to work out how I can video capture my problem as I'm not experienced at that.

Noticed this Youtube posting by Rob Ainscough.

https://www.youtube.com/watch?v=UjUOq8cUKkE

You can hear the same alarm in the background on his flight, strangely in his case tho, right up until he lowers the undercarriage?

He just seems to ignore it, though it is muffled by the high RPM.

It's opposite of my experience.

Andrew