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<DIV>Gray,</DIV>
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<DIV>Sorry about your lost. It think the biggest chance of failure were those parts that were new. I think there is a good chance that you have infant battery failure. I know that the chances are low but it could happen. I assume tha you checked the TX battery and it is OK. </DIV>
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<DIV class=signature id=signature>--<BR>Vicente "Vince" Bortone</DIV>
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<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: Gray E Fowler <gfowler@raytheon.com> <BR><BR><FONT face=sans-serif size=2>Guys</FONT> <BR><BR><FONT face=sans-serif size=2>Yesterday on my 4th flight of the day my PCM Stylus went nuts. PCM program was set for idle throttle and about 5-6 clicks(trim wise) of up elevator-all other surfaces neutral, and this was tested as such by turning off the transmitter. As I passed by center I noticed that I could not gain altitude and the the throttle started going from idle to high...then ailerons started oscillating small left-right deflections. I cut the throttle to the kill position but the engine persisted up-down bursts. I was able to do a 180 degree turn with aileron coming back to center...never losing altitude, but unable to change the altitude,elevator seemed unresponsive. As I passed by center again I was losing more and mo
re con
trol. The plane flew over the wooded area south of the field at about 200 feet high, I could not turn and the ailerons rolled the plane upside down and it went straight down into the trees. This whole episode last about 45 seconds. Cannot find the plane, and remnants of Gustav are headed my way.</FONT> <BR><BR><BR><FONT face=sans-serif size=2>Plane was new had about 10 flights on it.</FONT> <BR><BR><FONT face=sans-serif size=2>New battery..NiMH 5 cell pack -no regulator (ran 5 cell packs for years, no regulator) </FONT><BR><FONT face=sans-serif size=2>Reciever-1999 Stylus PCM-never crashed, wrapped in foam</FONT> <BR><FONT face=sans-serif size=2>New switch</FONT> <BR><FONT face=sans-serif size=2>Transmitter-1999 Stylus, never been serviced, never had problems</FONT> <BR><BR><FONT face=sans-serif size=2><B>What would cause a PCM receiver to do such a thing?</B> If I had and intermittent signal, once the receiver did get a signal the only two throttle signals should have been i
dle (P
CM hold) and off (transmitter). I am going to send the transmitter in just to get checked.</FONT> <BR><BR><FONT face=sans-serif size=2>Thanks guys....<BR><BR><BR>Gray Fowler<BR>Senior Principal Chemical Engineer<BR>Radomes and Specialty Apertures<BR>Technical Staff Composites Engineering<BR>Raytheon</FONT> </BLOCKQUOTE></body></html>