Today's Message Index:
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1. 06:53 AM - Recurring curious 172 electrical gremlin (Garrou, Douglas)
2. 07:09 AM - The voltage light in a 1974 Cessna 172M comes on during left turns (!). (N2165v@aol.com)
3. 07:42 AM - Re: Recurring curious 172 electrical gremlin (Cy Galley)
Message 1
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| Subject: | Recurring curious 172 electrical gremlin |
--> Cessna-List message posted by: "Garrou, Douglas" <dgarrou@hunton.com>
The voltage light in a 1974 Cessna 172M comes on during left turns (!). No
noticeable movement of the needle. In level flight, if the master is
switched on and off, the light extinguishes and doesn't come on again
until... the next left turn.
Previous efforts to fix the voltage light issue (when we had noticed it was
coming on for no apparent reason, but before we discovered the
"left-turning-tendency"), focused on the battery connectors and diode, which
have since been "fixed."
Aside from restricting flights to airports with right-handed patterns, any
ideas?
Cheers
Doug Garrou
Message 2
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| Subject: | The voltage light in a 1974 Cessna 172M comes on during left |
turns (!).
--> Cessna-List message posted by: N2165v@aol.com
Are the turns coordinated? I ask this because if they are nothing should be shifting
other than the control linkages and cables. Could these be interferring
with wiring?
Just a thought.
Message 3
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| Subject: | Re: Recurring curious 172 electrical gremlin |
--> Cessna-List message posted by: "Cy Galley" <cgalley@qcbc.org>
Sounds like a wire is shorting to ground .
Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh
Editor, EAA Safety Programs
cgalley@qcbc.org or experimenter@eaa.org
Always looking for articles for the Experimenter
----- Original Message -----
From: "Garrou, Douglas" <dgarrou@hunton.com>
Subject: Cessna-List: Recurring curious 172 electrical gremlin
> --> Cessna-List message posted by: "Garrou, Douglas" <dgarrou@hunton.com>
>
> The voltage light in a 1974 Cessna 172M comes on during left turns (!).
No
> noticeable movement of the needle. In level flight, if the master is
> switched on and off, the light extinguishes and doesn't come on again
> until... the next left turn.
>
> Previous efforts to fix the voltage light issue (when we had noticed it
was
> coming on for no apparent reason, but before we discovered the
> "left-turning-tendency"), focused on the battery connectors and diode,
which
> have since been "fixed."
>
> Aside from restricting flights to airports with right-handed patterns, any
> ideas?
>
> Cheers
> Doug Garrou
>
>
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