,
..
The
paragraphs below describe the recommended remedy .for eacJi
~itua-
tion.
· ·
..
EXCESSIVE
RATE
OF
CHARGE
~
~
After engine starting and heavy electrical usage at
lqw
engine speeds
(such
as extended taxiing) the battery condition will be
low
enough to
ac-
.
cept
above
normal charging during the initial
part
of.a flight. However,
afte~
thirty .minut.
es
'of
c~sing
flight, the ammeter should be iiidicating
le'ss ·
thari
two
need_l~
.
'Yi:dt~s
..
91.
.
cha.i:gin~
cu~rent.
:
.
If
tl_te
ch
.
arging
..;
.r;~~
~ere
to
remain above
~his
value
on
a long flight, the battery
woUld
overheat and
evaporate· the· electrolyte at
an excessive rate. Electronic components in
the
electrical
'
sysfo~
could be
'
adv~rsely
_
affected
by
hlgher than normal
voltage
if
a faulty voltage regulator setting
is
causing
fhe
overcharging.
To
preclude these possibilities,
an
over-voltage senspr will automatically
shut
down
the alternator
and
the over-voltage warning light
will
illuminate
if
the charge
volt~e
reaches approximately
16
volts. . Assuming-that the
malf~ction
~a.s
·
only
·
m~~efltacy,
'
ai!
.
~e!Jlpt
shouJ.4
.
~e
-.
Jriade
to reactivate
the alternator ·system. To
do
this,· turn both sides
of
the
master
switch
off
and
then
on
agai.D.:
If
the problem
.
np
"
long~r
exist's,.:J\opnal alternator
ch~g
will
re~e
.
and the warning light
wn
go
off;. yUhe light 'comes
on
·
again,
: a
matiUrictio~
.
i_s
-
·
co~~~~d
..
pi
this
eve~t,.
theitiight
~hould
be
terminated and/or the current drain
on
the battery minimlzed because the
battery _
can
supply the.
electri~al
sy_stem for only a
l~i~~d
period of time.
If
the
·
e~e~eji~Y
o
...
~
_
eurs
~
_ni~~t!~pqJ?~r~]p
,
u~
_
b
.
~
cons~zyec_!
fo;
later
"
qs,e
of
the·
randilig
_ light
anafl
,aps urmg .landing. ·
.::
..:
-
..
.
..
~
.
INSUFFICIENT '
RATE
OF
~
CHARGE.
c. , '
If
the arometer indicates a continuous discharge
rate
in flight, the
alternator
is
not supplying power to the system
and
should be shut
down
since the alternator field circuit may be placing
an
unnecessary load
on
the
system;..
~
non-essen!ial
equip~ent
should
_
b~
.
turned off
and
the
flight
terminated as soon
as
practical •
. . .
._....,
..
.
~~ER~E
-
NCt
fOCATOR TRANS'
MITTER
{EL
T}.
~
.
-
·
The
ELT
consists
of~
self-contained
dual-freque~~
radio
t~an~mit
ter
and
patte!Y
P<>w~r
'
s\Ipp~y,
and
. is
actil{ated
_ by
~
i~pact
of
5g
tJr more
·as
may'be experienced in ·a
crash
landing.
Tl).e
ELT eµiits
an
omni-d~rec
tional ·
signai.
'on the iiiternational
distress
fr~uencies
01'12i. 5 and-243.0
MHz.
· General aviaii'dn and commercial
ai~craft,
the
FAA
;
an
-d
CAP
3-9
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