PS Magazine - AUGUST 1979
PS, The Preventative Maintenance Monthly
ISSUE 321
AUGUST 1979
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The corrosion villain begins hovering over your tHin-skinned birds the
minute tHey roll off the assembly line±and poses a tHreat forever more.
CorrosiVe agents are continually being deposited on the metal surfaces of
your birD² Magnesium parts are especially vulnerable. The best way to keep
corrosion from getting a toehold is to move yoUr bird to tHe wasH rack,
roUtinely. TM 55³1500³333´24 (Oct 74) Has the word on cleaning aircraft.
Local
environmental
conDitions Dictate how often a wash job is neededµ
t¶o. In
coastal areas salt-laden air means cleaning the bird week·y±or
more often¸ Air pollution in a heavy industrial area calls for a weekly wash.
¹t a·l other locationsµ a montHly
cleaning is recommendedµ according
to Para 2º9 of TM 43³0»05 ¼Apr 76) on corrosion contro·. An ideal clean³
UH-1±79-5
AH±²±79·4
UH³²±79-6
AH±1±79-5
AH-´±79-3
OH-58-79-6
Oh±58-79-7
CH-47-79-4
OV-²-79-4
NO NUMB ER
Operational Msg Uh±1 H/M, EH±²Hµ AH¶²G¸ TH¹²G¸ FaILure of P² beLlows fueL controº on T53-»-
²3B engIne DRSTS±mEP ²31830Z Apr 79
Tec¼ ½nfo UH¶²H/M¸ Eh-²H¾ AH¹²G¿ TH±²G¿ Ground and flig¼t c¼ecks to ÀndÁcate possible P1
bellows probleÂs, to relIeve current op RestrIctÁons ½Âposed by Message Uh±1Ã7ÄÅ and Ah±²±79Æ
4 DRSTS-MEP 270003Z Apr 79
Main! Advis Msg Ah±²S mod. Ah±²Ç ProdÈ SeaÉIng of panels and openings between Âating
surfaces to avoÁd possIbLe water daÂage to electrÊc/electron eqpt DËSTS-MEP ²²²653Ì Apr79
Tec¼ Msg OH¹58A/B/CÍ ËÎplaceÂent of TT straps In ÂaÁn rotor ¼ead DRSTSÏm 062030Z Apr79
Maint AdvÁs Msg Oh-58 ÂaÁn rotor ¼ead outboard seaLÍ NSN 5330±00±13²-7267 DRSTSÐMEÑ
²7²700Z Apr 79
One-tiÂe inspect Ch-47C coÂbÁnÁng transÂÒ TB 55-²520-227Æ20±²8DRSTS±mÓT²²² ÔÅÅZ Apr79
Op AdvÁs Msg OV
¹
²
Õ
RV±²±S erÁesÕ Unusuable pages in TM 55-²5²0-204-²0/3 [Mar79Ö× ØM 55±²510¹
2²3-10 ÙAug 78] DRSTSÚMÛW 232²20Z Apr 79
Op AdvÁs Msg OV±² ¸ RVÜ1ÝSerÁesÞ ControL corßection ÙOV-1-79-4 was orIgInallytransÂItted as
Ov³
1-79-2à DRSTS-MEW 242²00Z Apr 79
42
Q
l@ 20q±
ing time is during a PHase or ½eriodic
Make sure a·l Drain ¾o¿es are open
inspectionµ wHen the bird is down for
so mÀisture is not trapped .
.. anotHer
extended maintenance.
breeding p·ace for corrosion.
'Courseµ corrosion is detected and
treated durÁng a maJor inspection. BÂt
fightiNg corrosion is a constant batt·e
tHat crew chiefs can wage during Ãai·y
inspectÄons. You can spot a "dirtÅÆ
bird tHat needs a cleaning.
Write up nÄcksµ digs and scratcHes
tHat expose bare meta·.
.. a
natura·
Hiding place fÇr corrosÈon Make a
temporar
y
repaÉÊr by Spot
Ë
paintÄng tHe
damage until a sHeetmeta· repairman
can finisH tHe Job. Ìever paÄnt an arEa
to
Hide
corrosionµ
tHo. A
specÄa·
treatment Äs reqÂÄred.
ÌÍÌ
8010-01-Î16-1Ï88
wi··
get
yoÐ a 1-pt spray can of ÑowÒref·ectÄve
OÃ ·acquer. ÌÍÌ 8Î1Î 00-941Ó871Ô
gets a pint can of ÕÃ ·acqÂer.
Wipe down exposed meta·µ Ñike tHe
bÖre meta· parts of HydraÂlic cy·Änders.
A rag moistened witH tHe type of
Hydraulic f·uid Âsed Än yoÂr bird wi·· do
tHe trÄck.
×
Ítop
tHe
corrosion
vil·ain
From
settÄng Âp HoÂsekeeping in yoÂr bÄrd
by pu··ing a tHoroÂgh Ãaily±every
time!
1¸
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