PS Magazine - TB 43-PS-430
PS, The Preventative Maintenance Monthly
ISSUE 430
SEPTEMBER 1988
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UH·60A .
..
Step lighTly and only In designaTed "walk Areas± when you avIators clImb up
top to pre-flIght your BlacK Haw²'s maIn rotor head.
³f you come down hard on an unsupported "no steP± area, you could easIly
crac² your ´Ird's thIn outer sµIn. ¶he engIne fIrewall is especIally vulnera´le
to mIsplaced brogans when the engIne cowlIng Is open.
³f yoU don't ²now a "walK area± Fom
a "no step± area, taKe a gander at ·Ig
1-5 of ¶M 55-1520-237¸23-2 ´e¹re
you go topºsIde agaIn. ³t shows steps,
handholds and walKways as well as "no
step± areas.
Watch your sTep and head o» sheet
metal repaIr.
Special ±nspections ².
.
Plus
o
r Minus 1 O Percent
¼ll reCurrIng specIal InspectIons have a Tolerance of plus or mInus 10 Percent
Fom the scheduled InspectIon tIme, whether It's spelled out In your ´Ird's maIn½
tenance manual or not.
³f your ´Ird Is due a specIal InspectIon every 150 hoUrs, ¾r Instance, the
InsPectIon must ´e peRformed between 135 and 165 hours. ³f It's not done durIng
that perIod, The ´Ird must be grounded wIth a red
"X³
un¿Il the InspectIon Is
completed.
•
¶he tolerance on recurRIng specIal InsPectIons does not mean you Àre authorIzed
to oveRÁy the InspectIon due date. ³nspectIons wIll not ´e exceeded except in
M³SS³ON ESSEN¶³¼L or EMEÂGENÃY sItuatIons.
One-tIme specIal insPectIons, such as Torque chec²s that ¹llow a specIfIc
maIntenance actIon, have no tolerance. ¶hey must be peRfoRmed when due or
The bIrd gets grounded.
Äara 2Å3´ of ¶M 55-1500-328Å25, ¼eronauTIcal EquIpment MaIntenance ManÆ
agement ÄolIcIes and Ärocedures, has all The InfÇ on specIal InspectIons.
3´
SEP
88
Avµonics .
..
The RT C
o
nnecti
o
n
Be mIghTy careÈl when you replace the receIver-transmItters a´oard your
bIrd. ¶oo much ¾rce can bend the pIns, spacers and plates that connect the ¶
to the onÉboard radIo control set.
When thaT happens, your avIonIcs repaIRman Is lIable to get ´ent out of shape,
too. ¶hat's 'cause reÊsoldering wIres To ´roKen connector ËIns Is a TedIoUs and
tIresome tasK.
Once the ¶ maKes contact wIth The connector at the rear of the moUnT, jusT
gIve It a small nudge to maKe a goodÌconnectIon.
SEP
88
37
Too much force
will daMage
mounts, con·
nectoR pLAte
anD the ±T's
multiple pin
connector
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