PS Magazine - MAY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 246
MAY 1973
I
i
1±:²
around in circles tryiNg To find its waY
home. AN aircraft with a DamageD an
te
n-
na can put the pilot In tHe saMe
fix.
an±EnNa
replaced, if
NeCessarY²
³reW chiefs and mechs Can make sUre
of good antenna Reception anD TRaNsMis´
Sion in The following cases witH a quick
looK, a Minimum of worK or a minute's
seLf Control:
µhe
VOR
anteNnas on ¶UeYs an· some
other airCraFt are in great locations for
the job, but tHey are not, (repeat, not¸)
rotor tie¹doWnsº »ou¼ll damage Them²
½o antenna is a Hand hold, either¾ ¿f
Àou need a boost, graB something stUrdY²
Áf Your unit is flYing A¶ÂÃGÄs
w
Å
t
h
MO 55-1520-221-30-17
applied, jot this
doWn² µhe relOation of the Æ¶Ç anteNna
to beloW the tail Boom rates a looK-Èee
after everY mission¾
EXAmINE
ANTENNA
AFTEr EvErY
miSSIoN
ALL SCrEWS
mUST BE TiGHT
oN ANTeNNA
CoUPlEr
LoOse screws in the CU-942
anTenna
coUPler on YoUr ¶UeY CaUse HigHÂfREÉ
quencY ViBRatioNsÊ ËHe ViBRatÌoNs PlaY
unPleasanT gaMes wiTH YoUR
FM cOm±
mUnications² µo BEat ÍEM, siMplY TigHTeN
tHE scrEws in
the F²
CouplerÎ
±²
ANOther screwy PrOble³ cONcerNs the
ADF iN y´ur CObraµ I¶ the ADF OPerates
iNter³itteNtly Or NOt at all· a gOOd first
check is the screW ON the ¸DF aNteNNa
sigNal wireµ The screW cOuld be tOO lOOse
Or just PlaiN tOO lONg¹ If it's lOOseº tighteN
itµ »f it's tOO lONgº ¼se washers sO the wire
caN be sN¼gged dOwN tight½
A ³iN¼te's
p³
ON the visOr screWs O¶
yO¼r ¶¾yiNg hel³et keePs thiNgs rea¿y ¶Or
the big sli¿eµ
TighteN
the si¿e
VisOr
screWs µ
À
This
stOPs the WhOle VisOr asse³bly ¶rO³ sli¿±
iNg O¶¶ WheN yO¼ lOWer the VisOrµ It alsO
PreVeNts ja³³iNgµ
I¶ yO¼'Ve gOt 'e³Á sN¼g tHe screW ON
the release b¼ttONµ A sN¼g screW keePs
the buttON ¶rO³ cO³iNg O¶¶ iN yO¼r haNd
µ µµ Or gettiNg lOstµ
´µ
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