PS Magazine - JULY 1977

PS, The Preventative Maintenance Monthly

ISSUE 296

JULY 1977
PS Magazine - JULY 1977 - Page 24 of 35
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·
Light on light Sets
Broke some of the lights in your portable airfield LighT
·
Set, marker,
emergeNcy, ±S± 6230-00²542³6680?
Get replacements with ±S± 6230²00´1µ5²9996. BatterIes are ±S± 6µ35¶00²
050-3280.
,
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Card NeEdEd
·J
"As you were¸, mechs, about exteding a compass calibration as s¹ated on
Jm
.
º
page 40 of PS 289»if your aircraft has only µ compass. Paras 4-18 and 4²22 of
Ii,
·
AR 95¼µ O'n 77)
"Y' =
½¾<d;¿ required_ ÀÁhÂÃwiÄe, Áhe biÅ!;¿ grounded.
;j]!
It's TrUe!
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i
\
Æhe only component on your Æ-53 engine that requires historical data is the
f
turbine rotor, according to
T
55-µ500²307¼24(un 76)Ç All the Qther bird
J[±
engine parts are now condition items and are replaced only when thEy are no
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r
longer serviceable.
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LO±seN the ²ug!
·.
±
±
Birdmech, listen upÈ When you remove a magnetic chip detector plug, like
²
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'
·
you do to take a 25-hr oil sample from a Huey 42²degree gear box, hold oneÈ
;
± I
³´
before putting a wrench on the plugÉ
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³
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Àtherwise, youÊll end up breaking the crimpËtype lug that holds the wire to
±
1
the plug .
.. means extra sweat and elbow grease.
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Bo³t from the B³Ue?
Ìf your aircraft is hit by ligÍtning, a magnetometer is needed to looK for
hiddeÎ damage in magnetized parts. Your support outfit has field indicator,
±S± 663 5²00²Ï91²005 8, in their flaw detection set. Ask them to check out your
bird.
Ð
TUrn
in tHe Keys!
When you trade in your old jalopy the keys go with it, right? Æhe same deal
goes when a bird is transferred or sent back to overÑaul. Missing ignition keys
and other security devices run up the tab some thinÒ fierce, so sendÊ Óm with the
bird. List the components on the DA Form 2408²µ7, per A VSCÀÔ Message
DRSAVËFMR Õ26 Àct 76).
SaMe ´i³ ConsUMption
·
Stick with the 2.4 pts/hr or 1Ö2 qts/hr oil consumption limit for the Æ53 L×1µ
and L²µ3 engines. ÆhatØs the figure in the Huey and Cobra pubs for use in the
field. Æhe .56 qt/hr figure on page 51 of PS 287 is the limit during engine
overhaulÙ
.
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Test Fligh± EN²r³´S .µ¶
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0
0
1
Day aµ a ¶·Me
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As a rUlÚ, you donØt make multiple
eNtries on DA Form 2408²µ3 for
multiple test flights flown iN a dayÙ
ÀÛe entry covers all teÜt flights flown
that day to correct that fault.
But, what about a situation inÝ
volving a test²flown bird, repairs
called for, and another test flight
scheduled for a day to come?
You close out your ²µ3 atÞthe end of
the day. Start a new ²µ3 the next day
and re-enter the tßst²flight requireà
ment on the new form.
Æhe only exception to
á
the rule
applies when the test flight is not
completed because of the discovery of
a
new
fault.
WHEN yOU¸Ve
Got A
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FLigh¹
¼CH¹DUL½d
fºR
an»¼½r
DAY
w¾¿ÀÁ SÂMÃ-
ÄÅÆÇÈ lÉKÊ ËÌÍs
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Àne entry covers all test flights
flowN in one âay to correct the faultÕs)
listed as the reason for those flights.
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