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1. 10:08 AM - Re: Cabin Fuel Leak (Dennis Polito)
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| Subject: | Re: Cabin Fuel Leak |
--> Commander-List message posted by: "Dennis Polito" <commander500b@comcast.net>
Kelly:
I had the same thing happen to me a couple of years ago. Fuel is supposed to
be routed to an overboard vent but in our cases the gasket that isolates the
aneroid chamber was dried up and shrunk.
If you find an alternative gauging solution please share it with the group.
best
Dennis Polito
----- Original Message -----
From: "Kelly Piper" <kellyp@air-matrix.com>
Subject: Commander-List: Cabin Fuel Leak
> --> Commander-List message posted by: "Kelly Piper"
<kellyp@air-matrix.com>
>
> Hi everyone, Just wanted to share an experience with the group. Last
weekend
> upon leaving Laughlin, Nevada for Arlington, WA we encountered a sizeable
> fuel leak from behind the co-pilot's panel. It happened after right
engine
> start-up and after a very quick shutdown (the leak was a steady stream) we
> were able to isolate it to the right engine 3-in-1 guage (oil temp, oil
> pressure, and fuel pressure). It appears that the aneroid wafer for the
fuel
> pressure ruptured and the case failed to contain the fuel in the
instrument
> case.
>
> All of our guages were sent in for test/calibration less than a year ago,
but
> the 3-in-1 guages were not opened - only bench tested. The records for
> N2732B do not show a last overhaul date on either guage so it is possible
> that it has been many years since they were last opened and inspected. I
> sent both guages in for overhaul as the other guage probably would be next
to
> go. Also of note was that there was no "early indicator" of the failure -
> the fuel pressure was reading normal right up to the point of failure.
>
> I guess the moral of the story is to specify an overhaul on critical but
> functioning critical guages if it has been several years since the last
> overhaul. Fortunatly, the Man was looking out for us and it happened on
the
> ground and not in flight.
>
> On the same topic, does anyone know of a suitable replacement for the
> 3-in-1's that uses a sender unit on the fuel pressure side vs. direct
> reading? I really don't like the idea of fuel under pressure routed to
the
> instrument panel and would be interested in alternative solutions.
>
> Thanks,
>
> Kelly Piper
> N2732B
> Arlington Washington
>
> Kelly Piper
> Director of Operations,
> AirMatrix
> 360-435-7343
>
>
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