CDCCL Part 147

8/9/2019 CDCCL Part 147

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Fuel Tank Safety (FTS) /

Airworthiness Limitation (AWL) /

Critical Design Configuration Control

Limitation (CDCCL)

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AIRWORTHINESS MANAGEMENT - AVIONICS

BAC!"#$%D TWA B747-131 Fligth-800 accident, involving Centre Wing

Tank (CWT) e!lo"ion"

#nve"tigation" revealed !enetration o$ 11% &ac electrical

energ' into the center $el tank de to cha$$ed Fel antit'

#ndicating *'"te+ (F#*) iring

Together, ith the inadeate electrical .onding o$ $el

"'"te+ Co+!onent", "e!aration o$ $el "'"te+ iring, and

$el va!or", re"lted in lo"" o$ the !a""enger live" and the

air!lane/ Fel tank e!lo"ion" can onl' occr hen an ignition

"orce i" in contact ith $la++a.le $el va!or/

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F$&L TA% &'#LS#% %CD&%Tarch 001, Thai Aira'" 737

CWT fuel pumps lef !u""#"$ %" &'e" (!)* Ele+!#+,l ARC

/ f,ul !esule( #" Ce"!e T," e.pl%s#%"

,#!pl,"e &,s e#"$ p!ep,!e( f%! , (ep,!u!e % C'#,"$M,#

14 p,sse"$e!s &e!e &,##"$ % %,!(

T'e f#!e e!upe( #"% 'e +,#" #ll#"$ %"e +,#" +!e&

meme! ,"( #"u!#"$ %'e!s

T'e f#!e &,s pu %u #" 0 m#"ues

T'e ,#!pl,"e &,s (es!%)e(

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F$&L TA% &'#LS#% %CD&%TSChina Air 737-800

W'#le !e!,+#"$ sl,s (u!#"$ ,.# %"e l%%se"e( sl,

f,#!#"$ %l pe"e!,e( #"% 'e CWT !esul#"$ CWT

e.pl%s#%"*

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F$&L TA% &'#LS#% %CD&%TS2hili!!ine" Airline" B737 10

CWT e.pl%s#%" (u!#"$ pus' ,+

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C#**#% F&AT$"&S #F S!%FCA%TACCD&%TS/%CD&%T

NO IGNITION SORCE

I6ENTI7IE6NO IGNITION SORCE

I6ENTI7IE6

NO IGNITION SORCE

I6ENTI7IE6

e-A1 fuel ,pp!%.* (e$!ee 7

,m#e" emp*93:C;

e-A fuel ,pp!%.* 120 (e$!ee

7 ," emp*94:C;

e-A fuel ,pp!%.* 5 (e$!ee 7

,m#e" emp*935:C;

1 f,,l#)230 f,,l##es8 f,,l##es

CWT pumps %pe!,#"$ , #me %f

e.pl%s#%"

CWT pumps %pe!,#"$ ,

#me %f E.pl%s#%"

CWT pumps %pe!,#"$ , #me

Of E.pl%s#%"

+!t' CWT e!lo"ion

+inte" a$ter re$eling

+!t' CWT e!lo"ion

5ring cli+.

+!t' CWT e!lo"ion

dring

!"h.ack $ro+ gate

A#! C%"(##%"#"$ <,+s !u""#"$(u!#"$ G!%u"( Ope!,#%"s

A#! C%"(##%"#"$ <,+s !u""#"$(u!#"$ G!%u"( Ope!,#%"s

A#! C%"(##%"#"$ <,+s !u""#"$(u!#"$ G!%u"( Ope!,#%"s

10 )e,! %l( ,#!pl,"e25 )e,! %l( ,#!pl,"e Alm%s "e& ,#!pl,"e

001 - B-737-400 Bangkok,

Thailand

16 - B-747, TWA 800,

F,9*A

10 - B-737-300 anila,

2hili!!ine"

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T+& ,F"&- T"A%!L&Fire i" a che+ical !roce"" reire"

three thing":

;<=>?,

@AT and F9

Withot one o$ the"e ele+ent",

a $ire cannot "tart or contine/

The !roce"" in a $ire i" called oidation/ A $ire haard can .e +ini+ied .'

eli+inating an' one "ide o$ the $ire triangle

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"&!$LAT#". ACT#%/"&$"&*&%TS

Spe+#,l 7e(e!,l A=#,#%" Re$ul,#%" 88 9S7AR 88;

,(=#s#"$ ,#!pl,"e m,"uf,+u!e!s % +,!!) %u , (es#$"

!e=#e& %f fuel ," s)sem % ,=%#( e"!) %f ,") #$"##%"s%u!+e #"% 'e fuel ,"s #" +%mpl#,"+e %f 7AR 25-01 >

25*81 9,; ,"( 9;*

N,#%",l A=#,#%" Au'%!##es 9NAA; us#"$ NT/<O?/25/12

AR 25*01 / 25*130 > Te+'"#+,l Gu#(,"+e ?e,fle9TG?; 4*

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SFA" %o0 1122Fuel Tank System Fault Tolerance&3aluation "e4uirements

A!!lica.ilit' 'e '%l(e!s %f )pe +e!#f#+,es ,"( suppleme",l )pe +e!#f#+,es

', m,) ,ffe+ 'e ,#!pl,"e fuel ," s)sem f%! u!#"e-p%&e!e(!,"sp%! +,e$%!) ,#!pl,"es p!%=#(e( 'e )pe +e!#f#+,e &,s#ssue( ,fe! ,"u,!) 1 158 ,"( 'e ,#!pl,"e ',s e#'e! ,m,.#mum )pe +e!#f#+,e( p,sse"$e! +,p,+#) %f 30 or +ore %! ,m,.#mum )pe +e!#f#+,e( p,)l%,( ca!acit' o$ 7,%00 !ond" %!m%!e*

T'#s S7AR ,ls% ,ppl#es % ,ppl#+,"s f%! )pe +e!#f#+,es,me"(me"s % , )pe +e!#f#+,e ,"( suppleme",l )pe +e!#f#+,es,ffe+#"$ 'e fuel ," s)sems f%! '%se ,#!pl,"es #(e"#f#e( ,%=e #f'e ,ppl#+,#%" &,s f#le( ef%!e u"e 2001 'e effe+#=e (,e %f'#s S7AR ,"( 'e +e!#f#+,e &,s "% #ssue( ef%!e u"e 2001*

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SFA" %o0 1122Fuel Tank System Fault Tolerance&3aluation "e4uirements

Co+!liance

9,; C%"(u+ , s,fe) !e=#e& %f 'e ,#!pl,"e fuel

," s)sem % (ee!m#"e ', 'e (es#$"mees 'e !e@u#!eme"s %f 25*01 ,"(25*819,; ,"( 9;*

9; 6e=el%p ,ll m,#"e","+e ,"( #"spe+#%"

#"s!u+#%"s9+; Sum# , !ep%! f%! ,pp!%=,l % 'e 7AA

A#!pl,"e Ce!#f#+,#%" Off#+e 9ACO;

8/9/2019 CDCCL Part 147



FA" 5670819 Fuel tank ignition :re3ention,* BN% #$"##%" s%u!+e m,) e p!ese" , e,+' p%#" #" 'e fuel ,"%! fuel ," s)sem &'e!e +,,s!%p'#+ f,#lu!e +%ul( %++u! (ue %#$"##%" %f fuel %! =,p%!s*

* C!##+,l 6es#$" C%"f#$u!,#%" C%"!%l ?#m#,#%"s 9C6CC?;

#"spe+#%"s %! %'e! p!%+e(u!es mus e es,l#s'e( ,s"e+ess,!) % p!e=e" (e=el%pme" %f #$"##%" s%u!+es &#'#" 'efuel ," s)sem ,"( mus e #"+lu(e( #" 'e A#!&%!'#"ess?#m#,#%"s se+#%" %f 'e I"s!u+#%"s f%! C%"#"ue( A#!&%!'#"ess*

+* T'e fuel ," #"s,ll,#%" mus #"+lu(e e#'e!D

91; Me,"s % m#"#m#e 'e (e=el%pme" %f fl,mm,le =,p%!s #" 'e fuel,"s 9#" 'e +%"e. %f '#s !ule Bm#"#m#eFF me,"s % #"+%!p%!,ep!,+#+,le (es#$" me'%(s % !e(u+e 'e l#el#'%%( %f fl,mm,le=,p%!s; %!

92; Me,"s % m##$,e 'e effe+s %f ," #$"##%" %f fuel =,p%!s &#'#" fuel,"s su+' ', "% (,m,$e +,use( ) ," #$"##%" &#ll p!e=e"

+%"#"ue( s,fe fl#$' ,"( l,"(#"$*

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T+& C#%C&T #F !%T#% S#$"C&"&;&%T#%

7uel ," e.pl%s#%"s +," %"l) %++u! &'e" ," #$"##%"

s%u!+e #s #" +%",+ &#' fl,mm,le fuel =,p%!*

7uel =,p%!s e+%me fl,mm,le &'e" 'e) ,!e m#.e( #"+e!,#" p!%p%!#%"s &#' %.)$e" ,"( ,!e u"(e! spe+#f#+

empe!,u!e ,"( p!essu!e +%"(##%"s*

s%me fuel ,"s ',=e , s#$"#f#+,"l) '#$'e! e.p%su!e %

fl,mm,le =,p%!s '," %'e! ,"s*

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T+& C#%C&T #F !%T#% S#$"C&"&;&%T#%

Fir"t ine o$ 5e$en"e % p!e=e" !e+u!!e"+e %f su+' e=e"s

A#!pl,"e m,"uf,+u!e!:s !e=#e&e( 'e ,#!pl,"e fuel s)sem (es#$"s

% mee 'e ,%=e !e@u#!eme"s*

, "ume! %f se!=#+e ulle#"s 9Ss; /<!%(u+#%" M%(#f#+,#%"s

9<!%(u+#%" Re=#s#%" Re+%!(D <RR; ',=e ee" #"!%(u+e( f%!

#"+%!p%!,#%" %" <!%(u+#%" ,"( I"-Se!=#+e ,#!pl,"es !)#"$ %

u#l( 'e ,#!pl,"e fuel s)sem (es#$" #mmu"e % su+' %++u!!e"+es*

7AA le$#sl,#%" !e@u#!es ', ,#!pl,"e )pes ', ',=e fuel ,"s&'#+' e.+ee( 'e ,=e!,$e fl,mm,#l#) e.p%su!e le=el 9 J;

spe+#f#e( #" 'e !ule s',ll e f#e( &#' e#'e! , 7l,mm,#l#)

Re(u+#%" S)sem 97RS; %! ," I$"##%" M##$,#%" Me,"s 9IMM;*

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T+& C#%C&T #F !%T#% S#$"C&"&;&%T#%

EASA ',s #ssue( , S,fe) I"f%!m,#%" ulle#" 9SI 2010-10;

&'#+' m,"(,es 'e #"s,ll,#%" %f , 7RS %" p!%(u+#%" ,#!pl,"e

sue+ % '#$' fl,mm,#l#) e.p%su!e ,"( m,"uf,+u!e( ,fe!

31s 6e+eme! 2011*

EASA &#ll pul#s' , N%#+e %f <!%p%se( Ame"(me" 9N<A; )

m#( 2011 % ,((!ess 'e #"- se!=#+e ,#!pl,"e !e!%f#*

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T+& C#%C&T #F !%T#% S#$"C&"&;&%T#%

Co+!liance Target I" !el,#%" % 'e ,ffe+e( ,#!pl,"e f#f) pe!+e" (%0) %f e,+' %pe!,%!Fs

flee %f ,#!pl,"e ,!e % e +%mplee( ithin 4 'ear" o$ relea"e o$ the*ervice Blletin" i/e/ .' 014* O"e 'u"(!e( pe!+e" (100) %f e,+'

%pe!,%!Fs flee %f ,#!pl,"e ,!e % e +%mplee( ithin 7 'ear" a$ter the

relea"e o$ the *ervice Blletin" i/e/ .' 017*

NOTED <%!,le $,s (ee+%!s ,!e use( % m%"#%! O.)$e" ,"( fl,mm,le

=,p%! +%"+e"!,#%"s &#'#" 'e fuel ,"s* O.)$e" +%"+e"!,#%"ss'%ul( e e&ee" 1*5 ,"( 23*5 pe!+e"* ?e=el el%& 1*5 pe!+e" #s

+%"s#(e!e( O.)$e" (ef#+#e" &'#le le=els ,%=e 23*5 pe!+e" &#ll

s#$"#f#+,"l) #"+!e,se 'e !#s %f f#!e ,"(/%! e.pl%s#%"* M%"#%!#"$ 'ese

f#$u!es #s +!##+,l % 'e s,fe) %f 'e m,#"e","+e +!e&*

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A Flamma<ility "e=uction System (F"S)

7RS #s , s)sem ', #s (es#$"e( % p!e=e" fuel =,p%!s f!%m

e#"$ #" , fl,mm,le +%"(##%"

A p!,+#+,l Fla++a.ilit' Dedction *'"te+ (FD*) &#ll

!e(u+e fuel ," %.)$e" +%"e" % el%& 'e le=el ', &#ll

supp%! +%mus#%" 9,pp!%,+' e#"$ ,(%pe( ) A#!us;*

%e#"$ ',s (e=el%pe( ?itrogen >eneration *'"te+ (?>*)

% s,#sf) 7RS !e@u#!eme"*

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An gnition *itigation *eans (IMM)

IMM #s , s)sem ', (ee+s ," #$"##%" s%u!+e ,"( !ele,ses

, f#!e supp!ess," % p!e=e" 'e (e=el%pme" %f , f#!e*

Su+' , e+'"%l%$) #s use( %" sm,ll m#l#,!) ,#!pl,"e u #s "%

+%"s#(e!e( suff#+#e"l) !%us f%! use #" l,!$e +%mme!+#,l

,#!pl,"e ,"( ,s su+' #s "% e#"$ pu!sue( ) A#!us %!

%e#"$*

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C+A%!&S T# ,%ST"$CT#%S F#"C#%T%$%! A"W#"T+%&SS- (CA)

*econd ine o$ 5e$en"e %f 'e 7TS !e$ul,#%"s ,++%u" f%! '#s

s#u,#%" ,"( !e@u#!es up(,#"$ %f I"s!u+#%"s f%! C%"#"ue(

A#!&%!'#"ess 9ICA; / A#!pl,"e M,#"e","+e <!%$!,m f%! ,ll 'e )pe

+e!#f#+,e( ,#!pl,"e % ,=%#( ,") l#el#'%%( %f +%mp!%m#se / =#%l,#%"

%f 'e fuel s)sem (es#$" +!#e!#, (u!#"$ ,") s+'e(ule( ,"( / %!

u"s+'e(ule( m,#"e","+e*

T'#s !e@u#!eme" e"su!es p!%pe! (%+ume",#%" %f ,")

m,#"e","+e ,+#%" pe!f%!me( %" 'e ,#!pl,"e ,"( / %! #s

+%mp%"e"s f%! s,fe) !el#,#l#) ,"( m,#",#",#l#)*

AW? / C6CC? ,ss &e!e #"!%(u+e( ) ,#!pl,"e m,"uf,+u!e!s #"

M,#"e","+e <l,""#"$ 6%+ume"s AN6 ',=e ,l!e,() ee"

#"+%!p%!,e( #"% 'e <IA:s flee m,#"e","+e p!%$!,m*

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C+A%!&S T# ,%ST"$CT#%S F#"C#%T%$%! A"W#"T+%&SS- (CA)

%e#"$ M<6 se+#%"- #s !el,e( % A#!&%!'#"ess ?#m#,#%"s

9AW?; &'#+' (es+!#es 'e 7uel A#!&%!'#"ess ?#m#,#%" Iems

9A?Is; ,"( 'e ,ss%+#,e( C6CC? ,ss*

A#!us / ATR pul#s'es BA#!&%!'#"ess ?#m#,#%"s 9A?S; se+#%"

-5 &'#+' #s !el,e( % 7uel A#!&%!'#"ess ?#m#,#%"s 97A?;* T'ese

!e@u#!eme"s %$e'e! &#' 'e ?#fe ?#m#s / M%"#%!e( <,!s

s!u+u!,l A#!&%!'#"ess ?#m#,#%" Iems 9A?I; ,"( s)semsCe!#f#+,#%" M,#"e","+e Re@u#!eme"s 9CMR; +%mp!#se 'e

A#!&%!'#"ess ?#m#,#%" Se+#%" &'#+' s,#sf#es 'e !e$ul,%!)

!e@u#!eme"s*

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Airorthine"" i+itation #te+" (A#") A?Is #(e"#f) #"spe+#%" ,ss !el,e( % fuel ," #$"##%" s%u!+e

p!e=e"#%" &'#+' mus e (%"e % m,#",#" 'e (es#$" le=el %f

s,fe) f%! 'e %pe!,#%",l l#fe %f 'e ,#!pl,"e*

T'ese A?Is ,!e m,"(,%!) ,"( +,""% e +',"$e( %! (elee(

&#'%u 'e ,pp!%=,l %f ,ppl#+,le !e$ul,%!) ,$e"+)*

S!#+ ,('e!e"+e % me'%(s e+'"#@ues ,"( p!,+#+es ,s

p!es+!#e( #s !e@u#!e( % e"su!e 'e A?I #s +%mpl#e( &#'*

A") use %f me'%(s e+'"#@ues %! p!,+#+es "% +%",#"e( #"

'ese A?Is mus e ,pp!%=e( ) 'e ,ppl#+,le !e$ul,%!) ,$e"+)*

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Critical 5e"ign Con$igration Controli+itation" (C5CC")

C6CC?s ,!e , me,"s %f #(e"#f)#"$ +e!,#" (es#$" +%"f#$u!,#%"

fe,u!es #"e"(e( % p!e+lu(e , fuel ," #$"##%" s%u!+e f%! 'e

%pe!,#%",l l#fe %f 'e ,#!pl,"e* C6CC?s ,!e m,"(,%!) ,"( +,""% e +',"$e( %! (elee(

&#'%u 'e ,pp!%=,l %f 'e ,ppl#+,le !e$ul,%!) ,$e"+)*

BA +!##+,l fuel ," #$"##%" s%u!+e p!e=e"#%" fe,u!e m,) e.#s #"

'e fuel s)sem ,"( #s !el,e( #"s,ll,#%" %! #" s)sems ', #f ,

f,#lu!e +%"(##%" &e!e % (e=el%p +%ul( #"e!,+ &#' 'e fuels)sem #" su+' , &,) ', ," u"s,fe +%"(##%" &%ul( (e=el%p

&#'%u '#s l#m#,#%"*

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Critical 5e"ign Con$igration Controli+itation" (C5CC")

S!#+ ,('e!e"+e % +%"f#$u!,#%" me'%(s e+'"#@ues ,"(

p!,+#+es ,s p!es+!#e( #s !e@u#!e( % e"su!e +%mpl#,"+e &#' 'e

C6CC?* A") use %f p,!s me'%(s e+'"#@ues %! p!,+#+es "%

+%",#"e( #" 'e ,ppl#+,le C6CC? mus e ,pp!%=e( ) 'e

7AA %ff#+e ', #s !esp%"s#le f%! 'e ,#!pl,"e m%(el T)pe

Ce!#f#+,e %! ,ppl#+,le !e$ul,%!) ,$e"+)*

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Certi$ication aintenance Deire+ent"(CD")

A CD i" a reired !eriodic ta"k, e"ta.li"hed dring the

de"ign certi$ication o$ the air!lane a" an o!erating li+itation

o$ the t'!e certi$icate/ CD" "all' re"lt $ro+ a $or+al, n+erical anal'"i"

condcted to "ho co+!liance ith cata"tro!hic and

haardo" $ailre condition"/

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*a+!le o$ AW E FA $or B777

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*a+!le o$ AW E FA $or A310 C5CC Deire+ent De$erence A!!lica.ilit'

1 Air ga! .eteen a $elantit' indicating!ro.e" and theair!lane "trctre/

Critical to !revent "!arkgenerationdring lightning "trike condition"and +"t not .e co+!ro+i"edThe ga! "tated in the relevant+aintenance !rocedre in theA+"t .e achieved dringin"tallation o$ a $el antit'!ro.e/

A8-4-31 !. 4018-4-3 !. 4018-4-33 !. 401

AAA

*e!aration o$ $elantit' and levelindicating "'"te+

iring $ro+ other iring/

To !revent cro"" co!ling o$ highvoltage tran"ient" and there.'kee!

n"a$e ignition energie" $ro+in"ide the tank it i" reired thato!erator" o.e' the ire rotingand "e!aration "tandard" given inthe lectrical*tandard 2ractice" anal(*2)/

*20-10-000-33-0

0-33-10-33-

AAA

A

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*a+!le o$ AW E FA $or A310 C5CC Deire+ent De$erence A!!lica.ilit'

3 5irect .onding onite+" o$ ei!+entin"ide a $el tank/

5irect .onding i" critical to !revent"!ark generation dringco+!onent$ailre and lightning "trikecondition" and +"t not .eco+!ro+i"ed 5irect .onding in

$el tank" +"t .e carried otdring co+!onent in"tallation tothe a!!ro!riate .onding +ethodand "tandard "tated ithin thein"tallation !rocedre in the A/

A8-00-00 !. 4018-11-1 !. 4018-11- !. 4018-11-4 !. 4018-11-3 !. 401

8-1-1 !. 4018-1-33 !. 4018-1-34 !. 4018-1-13 !. 4018-1-1 !. 4018-4-31 !. 4018-%-1% !. 4018-7-1 !. 4018-43-1 !. 401

8-46-1 !. 401

AAAAA310-300A

A310-300A310-300AAAAA310-300AA

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*a+!le o$ AW E FA $or A310C5CC Deire+ent De$erence A!!lica.ilit'

4 *a$et' critical$eatre" o$ $el!+!"

The"e $eatre" +"t .e +aintainedthroghot the $ll li$e o$ the $el!+! to avoid the !o""i.ilit' o$generation o$ an ignition "orce .'overheating or "!ark" ca"ed .'arcing, $riction etc/De!air and overhal o$ $el !+!"+"t .e carried ot in accordanceith the ei!+ent +an$actrer"+aintenance in"trction" or other+aintenance in"trction"acce!ta.le to the certi$'ingathorit'/

C8 0 018 4 11

AA

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A?A>?T E C;?TD; ;F C5CC De$er 5oc re$ G 2#AEC5CCE*FAD88 $or detailed !rocedre

$or the anage+ent H Control o$ C5CC in 2#A/

#t i" the re"!on"i.ilit' o$ certi$'ing "ta$$ E +aintenance

!er"onnel to en"re that the a.ove "tated C5CC

con$igration" are +aintained to redce the ri"k o$ an'ignition "orce !enetration into the $el tank (")/

#$ an' o$ the"e C5CC i" co+!ro+i"ed, thi" +a' lead to ire

cha$$ing, $alt crrent ("hort circit), or overheating o$ the

CWT $el !+!"/

Thi" in trn +a' re"lt in $el tank e!lo"ion/

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A?A>?T E C;?TD; ;F C5CC 5r' rnning o$ the $el !+!" "hold not .e alloed a" it

ha" alread' re"lted in cata"tro!hic incident"/

Thi" reire+ent ha" .een addre""ed .oth .' Air." H

Boeing .' introdction o$ ne logic circitr' to avoid dr'

rnning on CWT $el !+!"/

#ntrodction o$ >rond Falt #nterr!ter (>F#) rela'" al"o

en"re" ?; overheating E $alt crrent in the $el !+!

circitr'/

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A?A>?T E C;?TD; ;F C5CC

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;&D@A9 *@;2 C;?TD; F;DC5CC

Fel !+!" C have al"o .een revi"ed in co+!liance o$

C5CC reire+ent" and !rovide" "!eci$ic in"trction" E

!rocedre"/ Tool", kit", Iig", +aterial", te"t ei!+ent reired $or

"ervicing, re!air or overhaling o$ a $el "'"te+ co+!onent

"hold .e "ed accordingl'/

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A5E *B Control $or C5CC A5E*B evalation check li"t a" !dated to inclde a cla"e

to check hether the literatre nder evalation a$$ect"

C5CC or not/

Certi$'ing "ta$$ E +aintenance !er"onnel "hold a""e"" the

a$$ect o$ the crrent activit' on an' o$ the AWEC5CC, and i$,it i" con$ir+ed that a C5CC E AW i" directl' or indirectl'

a$$ected, ork in"trction" !rovided .' the A5 E *B or ta"k

card "hold .e revi"ed E corrected in coordination ith

Airorthine"" anage+ent 5ivi"ion to !reclde an' chance

o$ C5CC violation/ A data .a"e ill .e !dated to have a record o$ all the A5",

*B", and C; hich have an e$$ect on an' o$ the C5CC

reire+ent"/

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A5E *B Control $or C5CC*chedled E n"chedled re!air "che+e" control

An' "chedled En-"chedled locall' !re!ared re!air

"che+e "hold .e ea+ined $or e$$ect on an' o$ the C5CCite+(")/

*a+e level o$ nder"tanding i" reired .' "ho! !er"onnel

involved in the "ervicing E re!air E overhal o$ Fel !+!",

F# Tank nit, Fel antit' #ndicating Co+!ter (F#C),

Fel antit' 2roce""or 9nit (F29), harne""e"/

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A5E *B Control $or C5CCaintenance 2rogra+ Control $or C5CC

#n"!ection"E ta"k" introdced throgh ocall' generated

ta"k card" a" !er reire+ent" o$ an A5, in"!ection *B, oran' other local o!erational E+aintenance reire+ent al"o

reire" a""e""+ent hether it a$$ect" the C5CC or not/

2#A $leet aintenance !rogra+ "hold .e "crtinied on a

reglar .a"i" !on recei!t o$ 25 revi"ion, to "ort ot the

nel' introdced ta"k" $or having an i+!act on the C5CC/ Thi" eerci"e "hold .e contined in $tre a" ell/

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A#?T?A?C 5ATA - A?9AC;?*9TAT#;?

9"e o$ !dated E late"t +aintenance data i" o$ t+o"t

i+!ortance $or +aintaining FT* de"ign criteria E C5CC/

Air Tran"!ort A""ociation o$ A+erica (ATA) Cha!ter 47 ha".een a""igned $or FD* E ?>* in concerned air!lane"

Air!lane aintenance anal" (A)/

C5CC arning note" have al"o .een introdced in A

and Co+!onent" aintenance anal" (C)/

All certi$'ing "ta$$ E +aintenance !er"onnel are reired tocon"lt concerned A EC (a" a!!lica.le)/

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Documents

CDCCL Part 147