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23 Oct 2021, 13:29 [ UTC - 5; DST ]


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 Post subject: PA46 boots not deflating.
PostPosted: 21 Apr 2021, 23:43 
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Joined: 11/29/10
Posts: 1728
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Location: KBJC - Broomfield, CO
Aircraft: Beech H50, PA46
Was flying the Piper in the muck a few weeks ago and took on some ice. I turned on all the anti ice and punched the boots while climbing for sunshine. When I broke out, all was well but noticed the boots were still inflated. In all previous planes the boots pop and then quickly retract. Mine took 30 minutes to deflate. I assume I have a stuck or bad something in the deice system. Any thoughts on where to troubleshoot ?


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 22 Apr 2021, 00:43 
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Location: Kentfield, CA (KDVO)
Aircraft: PA46 Mirage
Username Protected wrote:
Was flying the Piper in the muck a few weeks ago and took on some ice. I turned on all the anti ice and punched the boots while climbing for sunshine. When I broke out, all was well but noticed the boots were still inflated. In all previous planes the boots pop and then quickly retract. Mine took 30 minutes to deflate. I assume I have a stuck or bad something in the deice system. Any thoughts on where to troubleshoot ?

Call Kevin Mead, the guru of all things PA46


Last edited on 22 Apr 2021, 09:35, edited 1 time in total.

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 Post subject: Re: PA46 boots not deflating.
PostPosted: 22 Apr 2021, 08:41 
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Joined: 11/29/10
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Location: KBJC - Broomfield, CO
Aircraft: Beech H50, PA46
Thanks Max. Kevin is amazing, I have him on speed dial and am frankly a little embarrassed how much I have bothered him with stupid questions in the first year of ownership. Im also going to the uncowled event at his place next month. I was just trying to expand my list of resources before calling him again.


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 22 Apr 2021, 09:21 
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Location: West Long Branch, NJ (KBLM)
Aircraft: 1960 Twin Bonanza
If the boots are similar to the beech systems, there is an assembly (usually in the tail) which operates the boots. It takes pressure from the vacuum pumps to inflate the boots. It also creates suction to suck them back in. There are a few components that could fail. One being the boot switch, the timer itself that alternates which boots inflate, or the ejector assembly itself.

In flight the boots are constantly being sucked in which can lead to moisture being sucked in to the system from pinholes in the boots. In the case of boot issues that I’ve come up against the solenoids in the ejector assembly had corroded. In a other instance, a diaphragm in the assembly had deteriorated.

You’re pretty handy, I’m sure you can locate the parts in the system with a manual and figure out what’s not working.


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 22 Apr 2021, 10:06 
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Joined: 11/29/10
Posts: 1728
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Location: KBJC - Broomfield, CO
Aircraft: Beech H50, PA46
Username Protected wrote:
If the boots are similar to the beech systems, there is an assembly (usually in the tail) which operates the boots. It takes pressure from the vacuum pumps to inflate the boots. It also creates suction to suck them back in. There are a few components that could fail. One being the boot switch, the timer itself that alternates which boots inflate, or the ejector assembly itself.

In flight the boots are constantly being sucked in which can lead to moisture being sucked in to the system from pinholes in the boots. In the case of boot issues that I’ve come up against the solenoids in the ejector assembly had corroded. In a other instance, a diaphragm in the assembly had deteriorated.

You’re pretty handy, I’m sure you can locate the parts in the system with a manual and figure out what’s not working.


Thanks .. Good suggestions Issac !


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 22 Apr 2021, 18:28 
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Location: Charlotte NC
Aircraft: Piper Mirage
Likely a valve stuck or the vacuum pump/line.

Val


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 23 Apr 2021, 00:53 
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Joined: 02/03/11
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Company: Gee Bee Aeroproducts
Aircraft: hang glider
I suggest you buy or borrow a

Airborne 373
Test kit

This allows system check using shop air

GB

I won years ago at the Airborne school


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 Post subject: Re: PA46 boots not deflating.
PostPosted: 23 Apr 2021, 09:20 
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Joined: 11/29/10
Posts: 1728
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Location: KBJC - Broomfield, CO
Aircraft: Beech H50, PA46
Thanks Guy !


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