GrummanDude
Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA
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 Posted: Wed Jul 09, 2008 10:05 am Post subject: Flaps and Fuel gauges |
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I concur with Cliff.
Open up the back and take a look at all the hardware yourself. The wires to the switches are very difficult to get to. The switches are a pain in the ass too. Maybe Kevin will redesign the mechanism and move everything toward the middle about 6 inches. It would sure make working in there easier.
Find the down limit switch. Sometimes the lever that actuates the switch is bent off center. Be very careful with it. If you can, have someone try to actuate the flaps.
If everything looks good at the motor and switches, remove the right side of the center console. Check the wires on the flap switch itself.
By-the-way, for those of you out there with the AG5B: The flap limit switches are all wired backwards from the earlier planes. This works, but, the power and grounds are all messed up. I have one customer with a 2004 AG5B that had a squealing sound, once-in-a-while, when the flaps were put down. I rewired it to match the AA5B wiring diagram and the squealing went away.
Also, the fuel tank sending units on the AG5B have their own ground. Unfortunately, the end attached to the rib corrodes and then the gauge won't work. I installed a separate ground from the sending units to the gauges and now the gauges work.
-----Original Message-----
From: Mark Thomas Mueller <mark.t.mueller(at)comcast.net>
To: teamgrumman-list(at)matronics.com
Sent: Wed, 9 Jul 2008 3:06 am
Subject: Flaps Malf
| Quote: | --> TeamGrumman-List message posted by: "Mark Thomas Mueller"
<mark.t.mueller(at)comcast.net (mark.t.mueller(at)comcast.net)>
As I turned base to final on my last leg home from Michigan to Virginia for
the 4th of July weekend, my flaps malfunctioned in a very interesting way...
I was able to drop my flaps 2/3rds on base leg. After I turned final, I
depressed the switch to drop the last 1/3rd, but nothing happened. I cycled
the switch a couple times, but the flaps would not come down any further.
I flipped the switch up, and the flaps started to retract, so I immediately
stopped and tried to depress the switch in the down position again, but the
flaps would still not come down. I tried a couple times, but no luck. So I
kept the flaps where they were until after landing.
The flaps retracted fine after landing, but would not come back down on the
ground.
A local guy believes it to be a problem with the lower limit switch. This
is the second time in the last six months this has happened, and the last
time the local guy said the same thing, but obviously he did not fix the
root cause of20the problem.
WSY??? What's the most likely culprit? Where should I look first?
Thanks,
Mark
Tiger N1533R
t" target="_blank">http://www.matronics.com/Navigator?TeamGrumman-List
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Gary
AuCountry Aviation
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