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generale84

Winter SOP - ditching switch

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hi to all.

usually during winter operation we need to do anti icing before takeoff.

That's  a SOP procedure during winter in ice conditions.

Well, basically we need to turn off ENG bleed, APU air and arm Ditching switch under safeguard for seal the plane during operation. 

Bleed and Apu could be turner off (also need Pressurization be in AUTO but anyways MAN is not modelled yet and I overfly about it) but Ditching switch is not modelled.

Is planned ti make alive also it?

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No promises, but we'll take a look at it.

 

Most airlines specifically have their pilots avoid Deicing with engines on because the wings often have to be inspected after deicing and this can't be done with the engines running.  With engines off, all but the APU related opens to the aircraft are already closed except for RAM Air which of course is normally closed.  As such, so long as your'e deicing with the Engines off (and preferably APU off if ground power is available) then  you've more or less satisfied the conditions the Ditching Switch would do.

 

But as I said, we'll take a look at this.

 

Best wishes!

 

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57 minutes ago, DaveCT2003 said:

No promises, but we'll take a look at it.

 

Most airlines specifically have their pilots avoid Deicing with engines on because the wings often have to be inspected after deicing and this can't be done with the engines running.  With engines off, all but the APU related opens to the aircraft are already closed except for RAM Air which of course is normally closed.  As such, so long as your'e deicing with the Engines off (and preferably APU off if ground power is available) then  you've more or less satisfied the conditions the Ditching Switch would do.

 

But as I said, we'll take a look at this.

 

Best wishes!

 

 

Most airports won't leave you a choice where to de-ice. If it's not done at the stand you have to start the engines. You would not shut them down again for deicing.

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7 hours ago, Emanuel Hagen said:

 

Most airports won't leave you a choice where to de-ice. If it's not done at the stand you have to start the engines. You would not shut them down again for deicing.

 

Engine Running De/Anti-Icing
Engine running de/anti-icing is authorized at remote locations as noted on the
specific Delta Special Pages (Green Pages). At all other stations, engine running
de/anti-icing is not authorized. The Deicing Coordinator at the remote location
is the final authority in deciding if engine running de/anti-icing will be
accomplished.


An operative APU is not required for engine running de/anti-icing. During remote
de/anti-icing operations at these locations, a Ground Power Unit and air start
equipment will be staged at or near the remote locations. If engines need to be shut
down at remote locations, immediately notify the remote pad coordinator. Ground
equipment will be immediately dispatched to the aircraft to facilitate the recovery.

 

During light freezing rain or moderate freezing drizzle, engine running
de/anti-icing at the remote locations without an operating APU is not allowed
because the engines may need to be shut down to inspect the wings during
de/anti-icing.

 

There is more... but...

 

 

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7 hours ago, DaveCT2003 said:

 

Engine Running De/Anti-Icing
Engine running de/anti-icing is authorized at remote locations as noted on the
specific Delta Special Pages (Green Pages). At all other stations, engine running
de/anti-icing is not authorized. The Deicing Coordinator at the remote location
is the final authority in deciding if engine running de/anti-icing will be
accomplished.


An operative APU is not required for engine running de/anti-icing. During remote
de/anti-icing operations at these locations, a Ground Power Unit and air start
equipment will be staged at or near the remote locations. If engines need to be shut
down at remote locations, immediately notify the remote pad coordinator. Ground
equipment will be immediately dispatched to the aircraft to facilitate the recovery.

 

During light freezing rain or moderate freezing drizzle, engine running
de/anti-icing at the remote locations without an operating APU is not allowed
because the engines may need to be shut down to inspect the wings during
de/anti-icing.

 

There is more... but...

 

 

 

Okay, but I don't see how that would contradict my statement...

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14 minutes ago, masterhawk said:

I added the relevant info to the bugtracking system.

 

Beat me to it!

 

Thanks Bob!

 

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On 10.2.2020 at 18:12, DaveCT2003 sagte:

Most airlines specifically have their pilots avoid Deicing with engines on because the wings often have to be inspected after deicing and this can't be done with the engines running.  With engines off, all but the APU related opens to the aircraft are already closed except for RAM Air which of course is normally closed.  As such, so long as your'e deicing with the Engines off (and preferably APU off if ground power is available) then  you've more or less satisfied the conditions the Ditching Switch would do.

 

 

Sorry, but no. A pilot doesn't choose if he would like to deice with engine running or not. He gets told by the airport deicing company if deicing is done on the stand prior pushback or after pushback at a remote stand etc. 
A decision whether or not an aircraft needs to be deiced is done by the commander, where he will also decide which parts of the aircraft he wants deiced/anti-iced. Whenever an aircraft is deiced the full procedure regarding Packs/Bleeds/Ditching Pb is performed. The RAM Air switch is never touched in this case.

The deicing supervisor is responsible for the correct treatment and after the process he confirms to the pilot that the aircraft has been deiced correctly and cleared completely by contaminants and will let the pilots know about the start time of the deice/anti-ice procedure. That time is then taken by the pilots to determine the maximum holdover time according to the fluid/concetration/prevailing conditions. 

So the pilots will not normally check the wings after the deicing process, again that is being reported to him by the deicing company supervisor who is responsible for the correct deicing of the aircraft.

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7 hours ago, pegasus said:

 

Sorry, but no. A pilot doesn't choose if he would like to deice with engine running or not. He gets told by the airport deicing company if deicing is done on the stand prior pushback or after pushback at a remote stand etc. 
A decision whether or not an aircraft needs to be deiced is done by the commander, where he will also decide which parts of the aircraft he wants deiced/anti-iced. Whenever an aircraft is deiced the full procedure regarding Packs/Bleeds/Ditching Pb is performed. The RAM Air switch is never touched in this case.

The deicing supervisor is responsible for the correct treatment and after the process he confirms to the pilot that the aircraft has been deiced correctly and cleared completely by contaminants and will let the pilots know about the start time of the deice/anti-ice procedure. That time is then taken by the pilots to determine the maximum holdover time according to the fluid/concetration/prevailing conditions. 

So the pilots will not normally check the wings after the deicing process, again that is being reported to him by the deicing company supervisor who is responsible for the correct deicing of the aircraft.

 

Dave, this post is 100% true. This is exactly how it works.

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Gents. I am sorry this topic exploded a bit internally. It's not good if warnings and deletions are given and retracted etc.  User Pegasus has an impeccable status at this moment, no outstanding warnings, nothing. In fact he has a pretty high reputation score.

 

If you allow me to close this topic for a while to avoid things flaring up again I will sort this out among the moderators. 

 

 

 

 

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