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Date: Tue, 09 Apr 2013 10:47:44 -0400
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From: "George Shattuck" <gws37@plantationcable.net>
Subject: Nose gear gas strut
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Steve Colwell, I had to use the nose gear gas strut extension once and I =
almost had the disaster we all want to avoid.  I have been replacing my =
old (1993+/-) hyd hoses progressively and on a local flight after =
replacing a main gear upside hose the hose blew out of the fitting, =
blowing out all the fluid.  The mains fell into down and locked but not =
the nose gear did not.  I was panicky for a while, but then continued to =
slow and the nose gear locked (green light) below 80 knots.  I had not =
replaced the gas strut for several years, doing periodic alternate gear =
down tests every month or two.  Although I wouldn=E2=80=99t say it is =
necessary to change the gas strut every annual, it is certainly =
something to keep a close eye on and test regularly.

Attaching the new gas strut is no problem.  Just detach the nose strut =
from the scissors and maneuver the scissors as necessary to attach the =
gas strut.  The micro switch attachment must be loosened and moved out =
of the way to  enable the scissors to be moved to attach the gas strut.  =
It takes not much muscle power to push the scissors/gas strut pressure =
the short distance to reattach the nose strut.   The most difficult part =
for me was getting the castelated (sp) nut on the bolt at the top end of =
the gas strut in the nose gear tunnel.  I finally got the nut on but =
simply could not get the cotter pin in place.  I ended up using safety =
wire for that nut.  I am assuming the nose gear and gas strut =
arrangement are similar for the IV=E2=80=99s and the 320=E2=80=99s.

As for the blown hydraulic hose, I just forgot that it is a left hand =
thread inside the hose fitting.  I worked and worked to screw that hose =
in there and when I finally (duh) realized it was a left hand thread I =
had damaged the hose end enough to where it was not fitted properly, =
causing it to fail at the upside pressure.

George Shattuck
LNC2
Greensboro, GA
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<DIV>Steve Colwell, I had to use the nose gear gas strut extension once =
and I=20
almost had the disaster we all want to avoid.&nbsp; I have been =
replacing my old=20
(1993+/-) hyd hoses progressively and on a local flight after replacing =
a main=20
gear upside hose the hose blew out of the fitting, blowing out all the=20
fluid.&nbsp; The mains fell into down and locked but not the nose gear =
did=20
not.&nbsp; I was panicky for a while, but then continued to slow and the =
nose=20
gear locked (green light) below 80 knots.&nbsp; I had not replaced the =
gas strut=20
for several years, doing periodic alternate gear down tests every month =
or=20
two.&nbsp; Although I wouldn=E2=80=99t say it is necessary to change the =
gas strut every=20
annual, it is certainly something to keep a close eye on and test=20
regularly.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Attaching the new gas strut is no problem.&nbsp; Just detach the =
nose strut=20
from the scissors and maneuver the scissors as necessary to attach the =
gas=20
strut.&nbsp; The micro switch attachment must be loosened and moved out =
of the=20
way to&nbsp; enable the scissors to be moved to attach the gas =
strut.&nbsp; It=20
takes not much muscle power to push the scissors/gas strut pressure the =
short=20
distance to reattach the nose strut.&nbsp;&nbsp; The most difficult part =
for me=20
was getting the castelated (sp) nut on the bolt at the top end of the =
gas strut=20
in the nose gear tunnel.&nbsp; I finally got the nut on but simply could =
not get=20
the cotter pin in place.&nbsp; I ended up using safety wire for that =
nut.&nbsp;=20
I am assuming the nose gear and gas strut arrangement are similar for =
the IV=E2=80=99s=20
and the 320=E2=80=99s.</DIV>
<DIV>&nbsp;</DIV>
<DIV>As for the blown hydraulic hose, I just forgot that it is a left =
hand=20
thread inside the hose fitting.&nbsp; I worked and worked to screw that =
hose in=20
there and when I finally (duh) realized it was a left hand thread I had =
damaged=20
the hose end enough to where it was not fitted properly, causing it to =
fail at=20
the upside pressure.</DIV>
<DIV>&nbsp;</DIV>
<DIV>George Shattuck</DIV>
<DIV>LNC2</DIV>
<DIV>Greensboro, GA</DIV></DIV></DIV></BODY></HTML>

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