DMWR-9-2815-220
AVDS-1790 ENGINE OVERHAUL STANDARD
DEPOT MAINTENANCE WORK REQUIREMENT
DMWR-9-2815-220 - Page 105 of 1422
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3-1.
General.
CHAPTER 3
pR±SHOP AtALYSIS
a²
Pur³ose´
µhe ¶ur¶ose of ·resho¶ analysis is ¸o de¸ermine, ¶rior ¸o beg¹nº
ning over»au¼ ac¸½v¹¸ies¾ ¸he ex¸en¸ of overhaul required ¸o re¸urn ¸¿e eng¹ne ¸o a
coNd¹¸ion ¸ha¸ w¹Àl ¶rovide ¶erformance wi¸¿ ¸he reÁ¹ab¹l¹¸y of a neW eng¹ne for
80
¶ercen¸ of ¸he service l¹fe oF a ne engine´
Th¹s ¶resho¶ analysis will ¶rov¹de ¸o
¸¿e De¶o¸/con¸racÃor or ¸¿e con¸rac¸ing ofFicer's re¶resen¸a¸ive a generaÄ a¶¶ra¹sal
of ¸he engine conÅi¸ion when ¹¸ Was received For overhaUÄÆ
Ǹ is no¸ ¸he ¶ur¶ose oF
¶res¿o¶ anaÄys¹s ¸o ¶rovide ¸he o¶era¸ion¾ Main¸enance¾ aDjUs¸Men¸ or ¸roubÈes¿oo¸ing
anD re¶air ¶roceDÉres For ¸¿e engine.
b²
Çn¸en¸.
Ê¿e ¶res¿o¶ anaÄysis s¿oUld inD¹ca¸e from o¶era¸ion and func¸ion of
an asseËbÄy of ¸he engine w¿e¸her ¸he asseÌÄy ¹s func¸¹on¹ng ¶ro¶erly or whe¸her
FÍr¸¿er Diagnos¸¹c ¸es¸ing ¹s requ¹redÎ
Ïhe Major assembl¹es¾ JUdged from records
anD func¸ion ¸o be recoverable for use¾
Ð
wilÄ be ¸agged ¹¸¿ a¶¶ro¶r¹a¸e conDi¸ion´
An aid in de¸erÑin¹Òg ¸¿¹s condi¸¹on is ¸he OverhaUl Óns¶ec¸ion procedureÔ
(Õ)
Överhaul Ins¶ec¸¹oÒ ProceDures (Ö×PØsÙ are ¶re¶ared For ¹¸eMs anD
asseMbÄies Whic¿ are Fel¸ ¸o have ¶ar¸icUÄar s¹gn¹f¹cance reÚa¸ive ¸o ¸¿e FUnc¸¹onal
reÄiabiÄi¸y, ¶erforMance or saFe¸y oF ¸¿e enÛine as a W¿oÄe.
Ï¿e very exis¸ence of
an ÜÇÝ au¸oMa¸icaÄÄy ¶Äaces em¶¿asis on ¸he iÞ¶or¸ance oF an ߸eM so covereD²
àá¹Äe
¸¿e O×P is ¶re¶ared as a Qual¹¸y assurance Docuân¸¾ i¸ is by no âans liMi¸ed in ¹¸s
usage ¸o aNy ¶ar¸icUlar groU¶´
ãor does i¸s exis¸ence¾ in i¸seÄf reqUire ¸¿e Mandaº
¸ory d¹sasseMbÄy¾ clean¹ng¾ anD ins¶ec¸ion of ¸he ¶ar¸ For Âhich ¹¸ Was ¶re¶aredä
I¸ ârely reQuires ¸ha¸ ¸he con¸inued serviceab¹li¸y of ¸ha¸ ¶ar¸ be assured ¹n soå
Ñanneræ
(2)
çor exaѶle, an ÜIP may cover an individUal ¶ar¸ of an asseMbly´
If
èns¶ec¸¹on of ¸he assembly as a un¹¸ is suFfic¹en¸ ¸o assUre ¸he con¸inueD serviceº
ab¹Äi¸y of alÄ oF i¸s ¶ar¸sé FUr¸¿er DisasseMbÄy ¹s bo¸¿ Unnecessary anD Was¸efUê.
ën ¸¿e o¸áer ¿and¾ iF ins¶ec¸ion of ¸¿e asseìÄy inDica¸es ¸¿e neeD For Diagnos¸ic
Disasseíîly andïor re¶a¹r, ÖÇP's For ¸¿e ¹ndiviDual ¶ar¸s involved s¶ecify ¸he¹r
reðUireÑen¸s and w¹Äl serve as ¸he basis for de¸erminßng ¸he¹r con¸inued serviceº
abili¸y²
ënce ¸he un¹¸ ¹s reasseñbòeD¾ i¸ is aga¹n sUbJec¸ ¸o ¹ns¶ec¸ion ¹n order
¸o assure ¸ha¸ ¸he re¶a¹r was aDequa¸eóy efFec¸ed²
3/ô
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