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Alternator anomaly
David Hughes, Orange, California
I have an issue with my A36TC’s alternator. I just
Q: completed the 500-hour inspection and bearing
replacement. Both prior to the alternator work and after,
occasionally my ammeter jumps back and forth and the
panel lights slightly flicker. I sent you a video from my iPhone
for your review. On Monday I flew from Chino (home base)
to Sacramento. Nothing out of the ordinary. On Tuesday I
flew back to Chino and for the first hour, nothing out of the
ordinary. Then out of the clear blue the ammeter started
to jiggle (seen in the video). After about 30 minutes the
fluctuations stopped and I landed uneventfully at Chino.
Prior to the bearing replacement I have occasionally seen
this anomaly. Several months ago we flew to Seattle from
Southern California. No problems on the way up, but on
the way home, about one hour into the flight, the ammeter
started to fluctuate, and it did so the rest of the way home.
There are no other indications of anything going wrong.
Thoughts?
A:
When you had the alternator work accomplished,
did they complete the drive coupling slippage check
per Continental Service Bulletin SB11-3? If the drive clutch
is slipping, this could cause the problem you are having. If
the clutch is okay I suggest swapping
the alternator for an overhauled unit
to eliminate a possible intermittent
internal alternator problem. —BR
www.bonanza.org
A:
I have emailed you the wiring diagram and parts list
for the Printed Circuit Board (PCB). The board can be
purchased through one of the following under the original
number 102-364059-1:
Mesa Pilot Development ........ 480-535-6917
Arrell Aircraft ........................ 805-604-0439
Ultimate Aviation .................. 305-394-9458
Connector P76, P/N 207542-1
Mesa Pilot Development ...........480-535-6917
Ultimate Aviation ...................... 305-394-9458
The original part number on the PCB 102-364059-1 has
been changed to 58-364044-0001. —BR
Q:
A:
Audio panel knob
Otto Croy, Tampa, Florida
My V35A’s AMR 350 marker/audio panel transmitter
selector knob has broken off. Do you have a source
for a replacement?
STEC Cobham (http://sharepoint.s-tec.com/default.
aspx and 817-215-7600) took over the Collins Microline
of avionics. You can call them for parts. —JC
Flap circuit board
Humberto Monteferrante
Valinhos, Brazil
I need to find the flap circuit
Q: board and connector to replace
them on my G36. When I landed this
past weekend using full flap, the
flap didn’t come up again. I tried
many times checking breaks and
micro-switches but it didn’t work. I
brought the airplane to a maintenance
service, which found this damaged
board. Apparently it was modified
by someone before my acquisition.
I bought this airplane almost new in
April 2011 with 70 hours on it. The
warranty expired on July this year.
We can’t get good support from the
Beech dealer in Brazil. Where I can
buy these parts?
Volume 13 • Number 1 AMERICAN BONANZA SOCIETY 65