Today's Message Index:
----------------------
1. 09:53 PM - Re: FW: Horizon P-1000 (TeamGrumman@aol.com)
2. 10:11 PM - Re: Bitchin' (TeamGrumman@aol.com)
3. 10:16 PM - Fw: Ultra Vision lights quit (TeamGrumman@aol.com)
4. 10:19 PM - Re: Simultaneous GG/TG Email Listing (FlyinFever@aol.com)
5. 10:46 PM - Re: Simultaneous GG/TG Email Listing (Geoffrey Hickey)
Message 1
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| Subject: | Re: FW: Horizon P-1000 |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 12/19/03 05:26:47 PM, pecantiger@ispwest.com writes:
> Gangsters,
>
> I'm chasing a problem with the Horizon P-1000 tachometer. It has started
> showing a left mag alert light "on" meaning the P-1000 is not getting a
> signal from the left mag. To troubleshoot this, I first checked the
> P-1000 connections at the ignition switch... no problem. Then I removed
> the P-lead from the left mag and verified continuity from the mag
> terminal to the connector pin on the P-1000. I also did the same on the
> right mag and get continuity (0 ohms) on both leads to their respective
> pins on the connector to the P-1000. In addition, while flying, I see no
> indication of mag failure.. All CHT's and EGT's are normal. If I switch
> from "both" to either "Left" or "Right" ignition switch position, I see
> an increase in all EGT's on my EI UBG-16 engine analyzer. All very
> normal. My conclusion was a bad left tachometer within the P-1000 unit
> and so I sent it back to Horizon for confirmation/repair. Horizon was
> very responsive and called me to say they had it running on their test
> bench for 2 hours and it passes all tests. The technician at Horizon,
> Mark, suggested I try switching the left and right P-leads at the mags
> and see if the problem stays with the left mag alert or if it moves to
> show a right mag alert light "on". Went flying and the problem stayed
> with the left mag alert light "on". From this, I conclude one of two
> possibilities:
> 1.=A0 The P-1000 is defective and the bench testing is inadequate
> 2.=A0 The loss of signal to the left tachometer within the P-1000 is
> caused by an open in the left mag wire or an open in the left tachometer
> wire that connects to the left P-lead at the ignition switch terminal.
> The condition has to be an open and not a short because a short in the
> left P-lead would cause that mag to be off line and I would see a drop
> in RPM and increased EGT's on the engine analyzer.
>
> One thing I forgot to mention.. On startup the tach is working fine with
> both left and right mag signals being input to the P-1000. Runup is ok,
> too. It takes about 10-15 minutes of flying to get the left mag alert
> light "on". So if it is a P lead open condition, it doesn't happen until
> some heat soaking is added.
>
> Does anyone have another direction to go at this or has anyone with a
> P-1000 had a similar problem? I don't want to go replacing P-leads or
> anything else without a definitive confirmation of what the problem is.
> Also, I don't think Horizon would believe the unit is defective and they
> can't duplicate the problem, though after 35 years working in cellular
> and land-mobile product design and manufacturing areas, I've seen a
> number of escaping defects that "just couldn't be"!
>
> Bob Benenati
> Tiger N28839
>
>
Call Jake (Ron Jacobs) at Horizon and talk to him. Odds are pretty good
that he'll be of more help than you can imagine.
Gary
Message 2
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--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 12/20/03 09:50:52 AM, flyv35b@juno.com writes:
> I still think they should allow 2700 rpm for takeoff.
>
> Cliff=A0 A&P/IA
>
You can select 2700 for takeoff.
Message 3
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| Subject: | Fwd: Ultra Vision lights quit |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 12/20/03 09:10:01 AM, TeamGrumman writes:
>
> Sometimes there is a good reason that certain parts are not approved for use
> in our planes.
> I have the same Ultravision lights under my eyebrow but backed them up with
> approved lights, (bulbs).=A0 I didn't like the Ultravision due to inadequate
> illumination and complexity of the system (AC transformer, three way switch,
> dimmer, back up system, etc.)
>
>
> Rick has a BLACK instrument panel and it absorbs the light from the
> UltraVision lights.=A0 I've installed about 20 sets of UltraVision lights=20and
his is
> the only one with a black panel.=A0 He is also the only one who ever complained
> they didn't work.
>
> Gary
>
>
I guess TeamGrumman@aol.com has been blocked from sending to the Grumman Gang
So I'll post this here.
From: TeamGrumman@aol.com
Subject: Re: Ultra Vision lights quit
In a message dated 12/19/03 09:30:16 PM, rpa123@cine.net writes:
> Sometimes there is a good reason that certain parts are not approved for
> use
> in our planes.
> I have the same Ultravision lights under my eyebrow but backed them up with
> approved lights, (bulbs).=A0 I didn't like the Ultravision due to inadequate
> illumination and complexity of the system (AC transformer, three way switch,
> dimmer, back up system, etc.)
>
Rick has a BLACK instrument panel and it absorbs the light from the
UltraVision lights. I've installed about 20 sets of UltraVision lights and his
is the
only one with a black panel. He is also the only one who ever complained
they didn't work.
Gary
In a message dated 12/19/03 09:30:16 PM, rpa123@cine.net writes:
Sometimes there is a good reason that certain parts are not approved for use
in our planes.
I have the same Ultravision lights under my eyebrow but backed them up with
approved lights, (bulbs).=A0 I didn't like the Ultravision due to inadequate
illumination and complexity of the system (AC transformer, three way switch,
dimmer, back up system, etc.)
Rick has a BLACK instrument panel and it absorbs the light from the UltraVision
lights. I've installed about 20 sets of UltraVision lights and his is the only
one with a black panel. He is also the only one who ever complained they didn't
work.
Gary
Message 4
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| Subject: | Re: Simultaneous GG/TG Email Listing |
--> TeamGrumman-List message posted by: FlyinFever@aol.com
In a message dated 12/20/03 08:28:55 AM, TeamGrumman@aol.com writes:
> > Don't know if I'm the last one to figure this out or not, but if you send
> > an
> > email to the Grumman Gang, and Bcc Team Grumman (so that the GG doesn't
> see
> > whom else you sent the message to) you can send the same email to both
> > lists.A0 I've got MS Outlook so I can Bcc.A0 I don't know if you can
> do20it
> > with yahoo, aol, etc...
> >
>
> Thanks, I think I tried something like that a while ago and it wouldn't
> work.
> Maybe i did it wrong.
>
> Gary
>
>
No, I didn't send it wrong, I just tried it again. Mark "Gestapo" Mathews
has blocked me from posting to Grumman gang under the screen name of
TeamGrumman@aol.com.
Message 5
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| Subject: | Re: Simultaneous GG/TG Email Listing |
--> TeamGrumman-List message posted by: Geoffrey Hickey <ardri@comcast.net>
FlyinFever@aol.com wrote:
>No, I didn't send it wrong, I just tried it again. Mark "Gestapo" Mathews
>has blocked me from posting to Grumman gang under the screen name of
>TeamGrumman@aol.com.
>
>
I think he blocks any message with "TeamGrumman" anywhere in the
headers, in order to disable cross-posting, and that filter is probably
catching your username.
- Geoff
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