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  #1  
Old 02-20-2014, 09:26 PM
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Glen Lewis Glen Lewis is offline
 
Join Date: Jun 2006
Location: Lone Jack, MO
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Default Master Switch Warning

What are people using to warn that the master switch is left on?
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  #2  
Old 02-20-2014, 09:37 PM
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Ironflight Ironflight is offline
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Default

The EFIS is still lit up?
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  #3  
Old 02-20-2014, 09:42 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
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Default

The GRT EIS red master caution light is on (no oil pressure, no alternator output)?
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  #4  
Old 02-20-2014, 10:06 PM
Frank Smidler Frank Smidler is offline
 
Join Date: Feb 2005
Location: Stoughton, WI
Posts: 473
Default Warning light from oil pressure switch

I have a warning light connected to a oil pressure switch for the hobbs. The pressure switch is wired with one + input and two outputs. One of the outputs is hot when there IS oil pressure which is connected to the hobbs. The other output is hot when there IS NOT oil prssure. The latter is connected to a oil pressure warning light. When you shut down and there is no oil pressure the light turns on and remains on until you shut off the master. I also have a GRT EIS that will turn it's warning light on when the engine shuts down and there is no oil pressure. I have the EIS switched so it is possible that I could shut off the EIS but not the master that is why I still need the seprate warning light.
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Last edited by Frank Smidler : 02-20-2014 at 10:10 PM.
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  #5  
Old 02-20-2014, 10:30 PM
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mculver mculver is offline
 
Join Date: Dec 2008
Location: Redmond, WA
Posts: 269
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Leave your nav lights and strobes on all the time -- unlikely to miss that in a hangar. Saved my battery several times....
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  #6  
Old 02-20-2014, 10:38 PM
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Location: Woodinville, WA
Posts: 533
Default

A loud cooling fan and several screens.

-Rob
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  #7  
Old 02-21-2014, 04:37 AM
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ccsmith51 ccsmith51 is offline
 
Join Date: Jul 2010
Location: Orlando, FL
Posts: 1,077
Default

Ditto on the strobes. Part of my shutdown checklist is that the strobes are on.
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  #8  
Old 02-21-2014, 05:01 AM
ao.frog ao.frog is offline
 
Join Date: Sep 2006
Location: Manstad, Norway
Posts: 866
Default low oil press light

Ditto on low oil pressure warning light.

That bright red light is a great reminder after shutdown that the master is still on. Besides, it's nice to have a second warning source for an actual low oil press situation.
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Last edited by ao.frog : 02-22-2014 at 06:20 AM.
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  #9  
Old 02-21-2014, 06:02 AM
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TangoPapa TangoPapa is offline
 
Join Date: Jul 2011
Location: Ponte Vedra, FL
Posts: 36
Default Nav lights

My Nav lights are wired with out a switch. Master on. Nav lights on. And the they are LED, so minimal current draw. I make it a point to look back at the plane as I walk away just to double check.
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  #10  
Old 02-21-2014, 07:02 AM
esco esco is offline
 
Join Date: Jan 2011
Location: SoCal
Posts: 391
Default tactile sensor mark 1 mod 2

I use the belt-and-suspenders technique for my round gauge panel.

Before I exit the aircraft, shutdown checklist includes "Master Off" (and "key on glareshield.")

If outside, I touch my master switch- far left end of the panel- to be sure it's down/off before fueling, tying down, or connecting the towbar for hangar entry or exit. (I also sight the key.)

Redundant by design, one catches omissions in the other. That's also why I put "flaps" in both post-start and pre-takeoff checks, after an unplanned "soft field takeoff"
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