D E lEtlBRflER-CERTIFICATID N OFFIC E FA X : 55123927113 4 1 3 JUN . 201 0 11:2 6 PSg. 1



# ^ EMBRAE R Embra« r- Empres a Brasileir a d e AeronSutlc a S.A , Av . Brigadelr o Fari a Lima , 2.17 0 12227-90 1 - S.J , do s Campo s - S P - Brazi l 

## FA C - SlMIL E Ref. : GCF-0628/201 0 Date : 11/jun/20l O Page. : 1/ 4 RMA/mi a 

# 3 To : U.S . Departmen to fTransportatio n

Docke tOperations , M-3 0 Wes tBuildin g Groun d Floor , Roo m W12-140 , 120 0 Ne wJerse yAvenue , S E Fax : (202)493-225 1 Phone : - - From : S6rgi o August o Vian a d e Carvalh o

Airworthines s Manage r Fax : 5 5 1 2 3927-118 4 Phone : 5 5 1 2 3927-442 2 Subject : Embrae rPositio n t o FA AA D 2010-09-0 4 Reference : Docke tNo . FAA-2010-038 5 Copies : ANA C - Oswald o Oliveir a

FA A- Chi p Ada m FA A- Cind yAshfort h Dea rSi ro rMadam , Pleas e fin d enclose d EMBRAE R positio n t o FA AA D 2010-09-0 4 1 - Acronym s an d Abbreviations : A D - Airworthines s Directive ; AF E - Airport Fiel d Elevation ; CA S - Cre wAlertin g System , FM S - Fligh t Managemen tSystem ; IF R - Instrumen tFligh tRules ; IR S - Inertia l Referenc e System ; P F - Pilo t Flying; PN F - Pilo tNo tFlying ; RN P - Require d Navigatio n Performance ; Si L- Servic e Informatio n Letter ; SOP M - Standar d Operatin g Procedure s Manual ; VF R - Visua l Fligh tRules . - • J c: 5

Th e infoimatlo rcontaine d i n (hi s fac-simile meseag e i s Intende d onl yfor(h e pereona l an a eenrfidentla l us e o fth e designate d recipient s nam e above . Thi s messaa e mayal» o b e attorney-clien t privileged . 1 1 th e readefo fthi s me«sa9 9 i s n d th e Intende d recipien t o ra n agen t o retnploye e responsibl e fo rdeliverin g i t t o th e Intende d recipient , yo o are hereb ynotifie d tha i yo u rav e received thi s documen t i n erro ran d tha t an y review , dissemination , distributio n o rcopyin g o fthi s mes«ag e i s strictl yprohibited . I fyo u receive d Ihi s communicatio n i n error , pleas e notil yu s Immediatel ybyphone . Than k you .:Et1BRAER-CERTIFlCftTI0 NOFFIC EFft X-.55123927118 4 1 3 JUN . 201 0 li:2 7 PSg . 2



# ^ EMBRAE R Einbrae r- Empres a Brasileir a d e Aeroniutic a S.A . A vBrlgaaeir o Fari a Uma , 2.17 0 12227-90 1 - S.J , do s Campo s - S P - Brazi l 

## FA C - SiMIL E Ref. . GCF-0628/201 0 Date : 11/jun/20l 0 Page. : 2/ 4 RMA/mn a 

# 3

2
- introductio n O n Apri l 29'* " 201 0 F/V Aissue d A D 2010-09-0 4 t o addres s softwar e anomalie s foun d i n th e Honeywel l Primu s EPI C softwar e affectin g th e Embrae rmodel s ER J 17 0 an d ER J 190 . FAA considere d thes e anomalie s a s a n unsaf e conditio n sinc e i twoul d generat e misleadin g navigationa l guidanc e t o th e pilot s an d coul d caus e th e aircraf tt o departfro m th e schedule d flight . 3 - Analysis : Embrae rwoul d lik e t o commen to n eac h anomal ymentione d i n th e AD : 3.1 . FHflS Positio n Shif tWhe n Crossin g 180t h Meridia n (Honeywel l SI LD201002000051) . Thi s issu e i s a n FM S positio n anomaly/Larg e IR S bia s tha tdccur s whe n crossin g th e 18 0 de g Meridia n lin e whil e usin g IR S fo rnavigatio n Whe n thi s conditio n happens , th e followin g effect s v«l i b e notice d o n th e fligh tdeci c 1 . Th e cours e deviatio n indicato r(CD) ) wil l deflec tindicatin g th e offse tfro m th e desire d latera l an d vertica l path , base d o n th e change d position ; 2 . I fautopilo t i s couple d an d latera l navigatio n (LNAV ) i s engaged , th e airplan e wil l execut e a ban k maneuve rt o intercep tth e TO waypoin ti n th e flight plan ; 3 . I fma p displa yi s selecte d t o headin g up , ma p displa ywil l mov e t o th e ne wFM S position ; 4 . I fma p displa yi s selecte d t o nort h up , th e aircraftsymbo l wil l disappea rfro m th e ma p an d mov e t o th e ne wFM S position ; 5 . UNABL E RN P messag e wil l b e displaye d i n th e multifunctio n contro l displa yuni t(MCDU ) scratchpad ; 6 . FM S positio n start s slewin g bac k t o th e selecte d senso rpositions ; 7 . Cautio n CA S messag e "FMS1>GP S po s disagree " and , i fFM S 2 i s installed , "FMS2 > GP S po s disagree" , (no tmentione d i n th e Honeywel l SIL ) Base d o n th e definitio n o fhazardou s misleadin g guidanc e o fA C 20-130A : "Navigatio n dat a i s considere d t o b e hazardousl ymisleadin g whe n unannunciate d positio n error s exis ttha tar e greate rtha n thos e specifie d byth e multi-senso requipmen to rindividua l senso rrequirements." . Embrae rpositio n i s tha tth e conditio n i s clearl yannunciate d t o th e flightcre wbase d o n th e effect s describe d abov e an d therefor e shoul d no tb e considere d a hazardou s misleadin g guidance . Furthermore , fligh tcre wusin g norma ) airmanshi p skill s wil l easil ydetec tth e anomal y an d ca n quickl yrecove rth e aircraftfro m thi s scenario . Du e t o th e continenta l missio n o fth e ER J 17 0 an d ER J 190 , n o commercia l operato ri s nowaday s flying route s tha tcros s th e dat e line . Onl yth e executiv e je t- Lineag e - woul d possibl y operat e i n suc h are a an d considerin g tha tth e whol e Lineag e fleet whic h woul d b e i n servic e thi s Th e informatio n containe d I n thi s facsimil e messag e I s intende d onl yfo rth e persona l an d confidentia l us e o fth e designate d recipient s nam e abowe . Thi s messag e mayals o b e attomey-dien * privileged . I fth e reade ro fthi s messag e I s no tih e intende d recipien to ra n agen t o remploye e responsibl e fo rdeliverin g 1 1 t o th e intende d recipient , yo u are hereb ynotifie d that yo u hav e receive d thi s documen t i n error , an d Ba ran y review , dissemination , disfibuiio n o rcopyin g o fthi s mossag e I s strictl yprohibited . I fyo u receive d thi s communicatio n i n error , pleas e notifyu s immediatel yb yphone . Than k you .D E lEriBRPlER-CERTIFICPTIO N OFFIC E Fft X :5512392711S 4 1 3 JUN . 201 0 11:2 8 PSg . 3



# - ^ EMBRAE R Embrae r- Empres a BraslMr a d e Aeronaudc a S.A . Av . Brigactein o Fari a Lima , 2.17 0 12227-90 1 - S.J . do s Campo s - S P - Brazi l 

## FA C - SlMIL E Ref. : GCF-0626/201 0 Date : 11/iun/201 0 ' iPage. : 3/ 4 RMA/rm a yea rar e o f8 aircraf tan d thei rlikelihoo d o fhavin g route s tha twil l cros s th e dateline , w e conclude tha t th e expositio n t o suc h occurenc e i n th e EMBRAE R platfon n i s fairl yremote . Nevertheless , EMBRAE R als o release d operationa l bulleti n 170-006-0 9 "FM S positio n anomaly " informin g ou roperator s o fsuc h anomaly . 3,2 , Destinatio n Runwa yChang e Wit h n o Arriva l o rApproac h i n Fligh tPla n (Honeywel l SI L D201002000052) . Thi s issu e onl yoccur s when :

- Th e airplan e i s flying t o a runwa ywhic h neithe rha s a n arriva l no ra n approac h procedur e selecte d i n th e FM S ARRIVA Lpag e and ;

- Th e selecte d runwa yi s th e las tan d activ e waypoin to n th e flightplanning . I ti s no t mentione d i n th e Honeywel l SIL , bu t i n th e EMBRAE R desig n an ychang e t o th e flight pla n generate s a MOD FLIGH TPLA N pag e an d thi s informatio n i s als o displaye d i n th e MA P usin g a dote d lin e togethe rwit h th e curren tflightplan . Thi s wa yth e pilo tca n verif yth e chang e an d asses s it s correctness . Therefor e thi s issu e onl yoccur s afte rth e flight cre wacknowledge d an d activate d th e incon-ect flightpla n generate d b yth e FMS . Moreover , i t i s importan tt o conside rth e condition s i n whic h suc h proble m coul d occur . Firstly , Embrae rSOP M (Standar d Operatin g Procedure s Manual ) 3-05-1 0 recommend s tha t belo w1000 0 f t AFE , MCD U change s shoul d b e mad e b yth e PN F an d execute d onl yafte r confirmatio n byth e PF . I fnecessary , revertt o basi cAutopilot/F D mode s t o avoi d head s dow n tim e during hig h workloa d flightphases . Secondly , i fth e cre wi s intendin g t o perfor m a n IF R approac h usin g th e FMS , th e approac h procedur e mus tb e loade d fro m th e navigatio n databas e Th e fac ttha tn o approac h procedur e i s loade d i n th e flightpla n indicate s tha tth e cre wwa s plannin g t o perfon n a VF R approach , whic h shoul d no t b e use d wit h th e FM S a s describe d i n th e Embrae rAFM :

" - ILS , LOC , LOC-BC , LDA , SDF , GS , MLS , Visual , an d Rada rapproache s usin g th e FM S a s th e navigatio n sourc e fo rguidanc e ar e prohibited. " I ti s importan tt o poin tou t tha tthi s typ e o fsituatio n i s uncommon . Th e reasonin g behin d thi s i s tha twhe n a pilo ti s executin g a n approac h t o a n airportwithou ta n approac h procedure , h e ha s necessaril yt o b e i n visua l conditions . I n thi s case , th e pilo tcoul d us e th e FM S flightpat h a s supplementaryinformatio n t o th e airport , bu t the ywoul d hav e t o b e i n visua l contac twit h th e airporti n orde rt o proceed . Bein g thi s true , th e pilo twoul d hav e t o flyth e airplan e outsid e o f LNAVi n orde rt o positio n th e airplan e o n a visua l traffi cpatter n fo rth e landin g runway . I n orde rt o Th e informatio n containe d I n thi s fao-simil e mesaeg e I s Irttende d onl yfo rth e persona l tin d confidentia l us e o fth e designate d recipient s nam e above . Thi s messag e ma yals o b e attomeyKiiien tpttvlleged . i fth e reade ro fthi s measag e I s no t th e intende d racipien l o ra n agen to remploye e responsibl e fardeliverin g i t t o th e Intende d recipient , yo u ar e hereb ynotifie d tha t yo u hav e receive d thi s documen tI n error , an d tha tan y review , dissemination , distributio n o rcopyin g o fthi s messag e i s stricli yprohibited . I fyo u receive d thi s communicatio n i n error , pleas e rwtif yu s immediatel yb yphone . Than k you .DE :EMBRPER-CERTIFICPTI0 NOFFIC E FA X:55123927118 4 1 3 JUN . 201 0 11:2 9 PSg. 4



# f - - ^ EMBRAE R Embrae r- Etnpres a Brasileir a d e Aeroniutic a S.A . Av , Brigadeiro Fari a Lima , 2.17 0 12227-90 1 - S,J . do s Campo s - S P - Brazi l 

## FAC - SIMIL E Ref. : GCF-0628/201 0 Date : 11/jun/201 0 Page : 4/ 4 RMA/im a d o thi s th e pilo twoul d hav e t o either , manuall yflyth e airplane , o rcontro l th e autopilo tusin g HD G select . I n eithe rcase , change s t o th e FM S woul d no tresul ti n change s t o th e airplane' s flight path . I n additio n t o this , pilot s woul d rarel ychang e th e runwa yi n us e i n thi s condition , sinc e ther e woul d b e n o rea l improvemen ti n situationa l awarenes s i n doin g this . Embrae rals o release d operationa l bulleti n 170-001-1 0 "FM S Misbehavioo rUpo n RunWa y Chang e Whe n N o An-iva l o rApproac h Procedur e i s Selected " infomiin g ou roperator s o fsuc h anomaly , 4 - Conclusion ; Du e t o uniqu e desig n features(CA S messag e o n th e firstite m an d MO D flight pla n o n th e secon d Item ) tha t exist s i n th e EMBRAE R aircraft , whic h greatl yenhance s th e cre wsituationa l awareness , w e reques ttha tou raircraf tb e remove d fro m th e FAAA D 2010-09-04 . Bes tregards ,

/ iua n Carlo Milei b Ramirs i Certifleatlofl Offic

e IS^rgi o August o Vian a d e Carvalh o AinAforthines s Manage r

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tyo u hav e receh^tS S dS wi n JT ra^T « a ^ review , drssem.naiwn . distnbulio n o rcopyin g oftN s me»«.ae i s strictl yprohibited . I fyo u received thi s commi^nStioni n en^piea ^ ^^u s immedialBl yb yphone . Than k

you , ^ ^ *