---------------------------------------------------------- Cessna-List Digest Archive --- Total Messages Posted Mon 01/27/03: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 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 _____________________________________ Time: 06:53:10 AM PST US From: "Garrou, Douglas" Subject: Cessna-List: Recurring curious 172 electrical gremlin --> Cessna-List message posted by: "Garrou, Douglas" 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 _____________________________________ Time: 07:09:30 AM PST US From: N2165v@aol.com Subject: Cessna-List: 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 _____________________________________ Time: 07:42:16 AM PST US From: "Cy Galley" Subject: Re: Cessna-List: Recurring curious 172 electrical gremlin --> Cessna-List message posted by: "Cy Galley" 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" Subject: Cessna-List: Recurring curious 172 electrical gremlin > --> Cessna-List message posted by: "Garrou, Douglas" > > 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 > >