## -PARTMENTO F



# Federa l Aviatio n : ' H'OPERATION S 

# Administratio n B DE C - 1 A 11=0 3 

# Memorandu m Date : Novembe r 30 , 201 0 To : U.S . Departmen t o f Transportation , Docke t

Operations , Wes t

Building , Groun d Floor , R mW12-140 , 120 0 Ne w Jerse y Avenue , SE. , Washington , D C 20590 . From : Ros s Elmore , Manager , Technica l Support - Ai r Carrier , ACE-240-^"^ ^ ^^y^*^/ ^ Prepare dby : Raymo n Taylor , ACE-23ID , 816-329-322 9 Subject : Tran s State s Airlines , Operation s Specificatio n D09 7 Exemptio n Reques t Thi s memorandu mi s submitte dt o reques t an exemptio n from1 4 CF R121.1109 . Du e t o th e maintenanc e progra mdocumen t submission , revie w an dapprova l process . Tran s State s Airline s i s requestin g a18 0 da y extensio n t o th e requirement s o f 1 4 CF R121.1109 . Pleas e se e attache dlette r fromTran s State s Airlines . I f yo u hav e an y questions , pleas e contac t Raymo n Taylo r

a t 816-329-3229 . Attachmen t fi»*f/

# ^53 ) TRAN S STATES

AIRLMS . Aaro n H Arcnslron g 1149 5 Navai dRd . Bridgeto n Mo . 6304 4 Tel : (314 ) 222-470 3 Fa.\ : (314)222-471 8 Email : nannslrong@iransslnles.nc l Novembe r

24 , 201 0 U.S . Departmen t

o f Transportatio n Docke t

Operation s Wes t Buildin g Groun dFloo r Roo mW12-14 0 120 0 Ne w Jerse y Avenue , SE . Washington , D C 2059 0

In accordanc e wit

h 1 4 CF R11.63 , Tran s State s Airline s i s requestin g a n exemptio n t o th e requirement s o f

1 4 CF R121.110 9 - Supplemental Inspection s deadlin e o f Decembe r

20 , 2010 . 1 4 CFR121.110 9 require s tha t operator s develo p an dinclud e i n It s maintenanc e progra

malis t o f Fatigu e Critical Baselin e Structur e andFatigu e Critica l Alteratio n Structur e an damean s fo r addressin g th e advers e effect s o f repairs , alteration s andmodificatio n o n th e structure . W e ar e requestin g a

n extensio n o f

18 0 day s t o th e deadlin e requirement . Tran s State s Airline s i s a1 4 CF RPar t 11 9 operato r

o f th e Embraer

145L Ran dE P mode l aircraft . Accordin g t o th e Repai r Evaluatio n Guideline s (REG ) develope dby th e manufacture r o f th e aircraf t a s require db y 1 4 CF R26.43 , th e EMB14 5 ha s aDesigne dServic e Goa l (DSG ) o f 60,00 0 Fligh t

Cycl e (FC ) o r

67.20 0 Fligh

t Hour s (FH) , whicheve r

occur s first . Th e RE G goe s on t o includ e a

n implementatio n schedul e tha t wa s develope di

n accordanc e wit

h guidanc e containe di

n Advisor y Circula r (AC ) 120-9 3 tha

t suggest s operator s begi n physical survey s o f th e Fatigu e Critica l Structure a t 45,00 0 FC . Tran s State s Airlines ' highes t tim e aircraf

t i s currentl y ha s 25,61 7 cycles ; wel l shor t o f th e suggeste d45,00 0 FC . I t i s wit h thes e fact s tha

t Tran s State s Airline s feel s tha t publi c safet

y i s not jeopardize dshoul dth e exemptio n b e granted . Tran s State s Airline s develope dan dprovide dour propose dprogra

mt o our Certificate Managemen t

Offic e (CMO ) on Novembe r 16 , 2010 . However , there i s som e concer n tha t a thoroug h revie w b y th e CM O an dany subsequen t revision s require db y Tran s State s Airline s t o di e propose dprogra

mma y caus e Tran s State s Airline s no t to mee t th e Decembe r

20 , 201 0 deadline . A s state dearlier , 1 4 CFR121.110 9 state s tha t i f th e operator' s Supplemental Inspectio n programi s no t

approve dby th e Administrato r prio r t o December

20,2010 , th e certificate holder ma y no t operat e a n airplan e unde r

thi s part .—^

Base dupo n th e nee dt o ensur e that asafe , effectiv e an

dcomplian t

Supplemental Inspectio n progra mi s developed , approve dan dimplemented , Tran s State s i s makin g thi s reques t fo r a n additiona l 18 0 day s o r

adat e that

th e offic e feel s i s adequate to revie w an dapprov e th e Supplemental Inspectio n program . I f yo u shoul dhav e any question s and/o r concern s wit

h thi s request , pleas e d o no t hesitat e t o contac t m e at (314 ) 222-4703 . Regards ,
Aaro n H Armstron g Directo r o f Qualit y Assuranc e