ammar challenger presentation 2011

8/9/2019 Ammar Challenger Presentation 2011

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Challenger: Case Study

Muhammad Ammar Mehdi (SE SNRS)


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OBJECTIVE

What can we learn from the

“Challenger” !saster"

2


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The IncidentJanuary 28, 1986

#aunch $%out &' seconds after #aunch


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Shuttle !m"!nent#

$ %r&iter

$ 'iuid R!cet*!!#ter

$ S!lid R!cet*!!#ter


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Shuttle !m"!nent#


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hr!n!l!+y ! the RelatedE-ent#

. 19/0 $ NASA c!ntract# M!rt!n Thi!!l

. 19/6 $ NASA acce"t# the de#i+n &a#ed !n the

Titan mi##ile#

$ The !int# are #ealed &y. T! #ynthetic ru&&er %3rin+#,

. 1// cle-i# "in#,

. 4eat #hield "utty


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Shuttle 5art#


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The au#e ! the i#a#ter


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The au#e ! the i#a#ter


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Early 5r!&lem#

. 19//

$ Te#t# at Thi!!l #h! %3rin+ leaa+e

$ J!int i# made #tr!n+er &y chan+in+ #i7e#

. 1981

$ 5!#t3launch in-e#ti+ati!n #h!ed %3rin+er!#i!n due t! h!t +a##e#


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Early 5r!&lem#

. January ! 198 launch

$ :ir#t c!ld3eather launch

$ 5!#t3launch in-e#ti+ati!n #h!ed !int ailure

$ Te#t# #h!ed %3rin+# ina&ility t! ill the +a"due t! !int r!tati!n at l!er tem"erature#


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Early 5r!&lem#

. July 198

$ Thi!!l rede#i+n# the !int# ;! %3rin+# $ Thede#i+n a# n!t ready !r hallen+er launch


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5!litical limate

. !n+re## a# unha""y ith NASA

. !m"etiti!n ith Ru##ian# t! &e the ir#tt! !er-e 4alley


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ay# &e!re 'aunch

. :ir#t launch attem"t "!#t"!ned

. The ne>t launch date a# #et and a# t!&e attended &y ?ice 5re#ident *u#h

. The tem"erature at launch@ 32 de+ree#


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ay# *e!re 'aunch

. NASA #tart# an in-e#ti+ati!n ! the eect! l! tem"erature# !n the %3rin+ #eal#

. %r+ani7ati!n in-!l-ed

$ NASA

$ Mar#hall S"ace :li+ht enter

$ M!rt!n Thi!!l


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En+ineerin+ In-e#ti+ati!n*e!re 'aunch

. 5layer# at NASA $ 'arry Mull!y@ SR* 5r!ect Mana+er at Mar#hall

. 5layer# at Thi!!l

$ R!+er *!i#!ly@ A SR* en+ineer $ Arnie J!hn#!n@ A SR* en+ineer

$ J!e ilmin#ter@ SR* en+ineerin+ mana+er

$ Alan Mc!nald@ SR* en+ineerin+ direct!r

$ *!& 'und@ ?ice "re#ident !r en+ineerin+

$ Jerald Ma#!n@ Beneral mana+er


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En+ineerin+ In-e#ti+ati!n*e!re 'aunch

. *!i#!ly and J!hn#!n (Thi!!l)rec!mmend the launch t! &e "!#t"!ned

. *!& 'und, the ?5 (Thi!!l) !ren+ineerin+ a+ree# and mae# a #imilarrec!mmendati!n


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In-e#ti+ati!n *e!re 'aunch

. 'arry Mull!y, the NASA mana+er !SR* a## J!e ilmini#ter, the SR*

mana+er at Thi!!l, !r hi# !"ini!n

. ilmini#ter a+ree# ith !ther Thi!!len+ineer# and rec!mmend# a launchdelay


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In-e#ti+ati!n *e!re 'aunch

. Ater di#cu##i!n ith Ma#!n (BM Thi!!l)

. 'und (?5 Thi!!l) re-er#e# hi# deci#i!nre+ardin+ launchC

. Thi!!l rec!mmend the launch t! "r!ceed


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The 'aunch in January 1986

. The !-erni+ht tem"erature# dr!" t! 31D

. The tem"erature ! SR* at launch a# 32

. There i# an immediate &l!3&y ! h!t +a# atlaunch The #eal ail# uicly !-er an arc !

/ de+ree#


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The 'aunch in January 1986

. The &y3"r!duct# ! c!m&u#ti!n !rm# a+la##y !>ide that re#eal# the !int

. The &rittle !>ide i# #hattered

. 4!t +a#e# uicly &urn thr!u+h the liuidr!cet &!!#ter


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The In(est!gat!on


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R!le ! !mmunicati!n#

Chart used %y Th!o)ol Eng!neers !n Jan 2/ &e!re launch


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$ *e(!sed Chart %y *ogers Comm!ss!on

Show!ng all launches

Tem+erature at

Challenger #aunch, -./0


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A Re-i#ed hart &y R!+er# !mmi##i!nSh!in+ all launche#


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NASA $ M!rt!n3Thi!!l!rin+ relati!n#hi"

. S!, e are talin+ a&!ut a #y#temicailure

. There a# n! "r!"er #y#tem in "lace !r

&rin+in+ #uch arnin+ #i+n# t! theattenti!n ! hi+her auth!ritie#

. En+ineer# in M!rt!n3Thi!!l c!uld n!t

directly #"ea t!;ith hi+her NASA"er#!nnel They could only go throughthe!r own management1

D

t t ti


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!ntract!r 3 !r"!rati!n!m"artmentali7ati!n Relati!n#hi"C

D1


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E"il!+ue

. Se(eral fam!l!es sued 2$S$ management $ *eteen F2 and D milli!n "er amily $ M!rt!n Thi!!l "ayin+ 6 "ercent

. R!+er *!i#!ly, Thi!!l en+ineer

$ Te#tiied &e!re !n+re## $ Sued Thi!!l $ 'et the c!m"any $ =nderent thera"y !r "!#t3traumatic #tre## di#!rder $ Aarded the 5ri7e !r Scientiic :reed!m r!m the AAAS, $ N! lecture# !n !r"lace ethic# i##ue# (in Au#tralia)

. NASA &an# c!mmercial !r military "ayl!ad# r!m #huttle $ launched !n unmanned r!cet#


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The Milli!n !llar Gue#ti!n

Were the lessons thatshould ha(e %een learnt

“3assed On”"

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A Tra+edy in Haitin+C

T! day# ater hri#tma# 1999, #"ace !r&iteri#c!-ery t!uched d!n #aely ater c!m"letin+ it#ei+ht3day mi##i!n t! #er-ice the 4u&&le #"ace

tele#c!"e It was another fortn!ght %efore a 2$S$eng!neer s+otted someth!ng une4+ected Runnin+ acr!## a rein!rced "anel !n the leadin+ed+e ! i#c!-eryK# let in+ a# a i##ure, a crac#! dee" that the K#utrateK, the eaer material&ehind the "anel, a# -i#i&le

D


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5nsure what had caused th!s +otent!ally lethal

+ro%lem, 2$S$ d!d noth!ng6 A e li+ht# later,hen i#c!-ery ent &ac int! !r&it t! -i#it the

Internati!nal S"ace Stati!n in March 21, thesame th!ng ha++ened aga!n6

NASA !rdered it# en+ineer# t! chec the in+# !all !ur #huttle %r&iter# They were not g!(ens+ec!al!7ed e8u!+ment, &ut t!ld t! l!! !r crac#ith their naed eye# and t! "r!d the -ital leadin+ed+e# ith their in+er#, t! l!! !r #!t #"!t#

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. Hhat NASA !r+!t, and hat the ault 3tracin+#y#tem ailed t! tell it, a# i #ta ere c!untin+dent# in the tile#, it a# certain the in+#K leadin+

ed+e# ere +ettin+ &um"ed a# ell The#e ed+e#are the #huttle#K m!#t -ulnera&le "!int in thehite heat ! re3entry

. 4ard a# +ranite, the tile# d!nKt #h! dent#, &ut

&l!# may eaen them cata#tr!"hically

D/


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It 4ad t! 4a""enC

%n 1 :e&ruary 2D, NASAK# luc ran !ut A#!lum&ia, the !lde#t -e##el in the #huttle!r&iter leet, &e+an t! de#cend int! the

atm!#"here at a #"eed ! i-e mile# "er #ec!nd,a et ! i!ni7ed air &urnt thr!u+h the crac,thr!u+h the #utrate, int! the in+, incineratin+c!ntr!l and #en#!r ire# and meltin+ metal

e&ri# r!m the crat ell acr!## the #!uthern=nited State# The #e-en a#tr!naut# a&!ard hadn! chance

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The 5re-enta&le !lum&ia Tra+edy3Re"!rt ! the In-e#ti+ati!n *!ard

. NASA


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Re"!rt ! the In-e#ti+ati!n*!ard

. The#e re"eatin+ "attern# mean thatlaed "ractice# em&edded in NASA


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!nclu#i!n

There ha(e %een many d!sasters 2atural ; 9an

made6

.hallen+er and !lum&ia

.hern!&yl

.TMI

.:uu#hima

.Etc

01


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!nclu#i!n# (c!ntinued)

• Natural – Inadeuacy ! e#i+n

•Man-Made -

%"erati!nal Err!r I+n!rin+ Harnin+ Si+n#

Mana+ement Attitude

'ac ! 5r!cedure#, %-er#i+ht,!mmunicati!n, etc

02

Richard :eynman


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Richard :eynmanO5* 3$TIE2CE


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TO5 0O* >O5* 3$TIE2CE

*emem%er

$CCIE2TS O2?T


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Gue#ti!n

ammar challenger presentation 2011

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