u . S Oepatment of f iOmporlotbn FOd O I O

I Av l 01 ion Admi n is tratio n 

### SEP 1 

## 8 20!5 M r. Dan ie l Bums Ch ie f Ai rwo rth iness J ; ngineer Bomba r

dier A e rospace P. 0. Box 60 8 7 St: ui on Cenore

- v ill e Mo nore a l , Q u ebe
. c. Canad a B3C 309 New Yo"' Aircraft Certf.:ccltron Office 1 600 S tew;t.l'l Aw:nuc**Su e4** **0** We&tbury. HY 11 5$0 (5 16) 2 23-7:300 , F a )( : ( 516 ) 794 -.. 55l 1

Subject : f\·fet h od o f Com p l i a n ce

- fot A irwon h i ness D i r ec . t ive 

### 2 015

- 1 5-0S**De~ r**  M r . Bu rn s: Th i s l ette r provides a Me th od ofComp liru tcc (M OC) to AD 20 1 5-15-08. Th i s MOC i s ap p l ic a ble to B omb ar dier I nc. Mode l s 13 U- I 00-1 A I 0 (C ha ll enger 3 00), equ i pped v.i t h a spoi le re l cc or onic co n t ro l u n it (SECU) having**p!l~** numbcr (PIN ) C47330

- 006, C47330

- 007
. o r C47330

- 008 ce rti fi e d i n a n y catego r y. A D 20 1 5

- 15

- 08 w a s promp l(..-d by ' "' -sting oft h e Spo i le r t:l e<: t ro n ic cont r ol un i t ( S ECU) so f hvare fo r an up grade, which r eve a l e

d a ti ming erro r bet \ vee.n t h e c o mm a nd and mon i t o r chan n e

l s . l l 1is AD 

### was i ssued lO p reve nt a t i mi r l g e rr or i n t he SEC U so ft ware, which. in comb i nation wi t h fa i l ure of t he roll d isc o nn e ct swi t c h
. co u ld r esu lt in comp l ete loss of s po i l e r fu n ct io nal ity an d co n . se q u e

nt reduced c .o nuollabili t y of t he airplane
. l ')am graph ( g ) o f AD 2015-15·08 r eq u ires rev i sing t he m ai nt enan c e or inspec t ion p r og ram to in

corpo r ate repe t i t ive operat io n t e s t s of t he
. ai l eron d iSCl)rmet t system l bl' s po i le r run ctio na l i t

y . T he curren t**r<."(lu ~mc** **t** of pa ragrap h (g) i s: " W i th i n 600 fl ight ho ur s s- i nc.e the lll t)S t rece nt operat ional test o f the a ile r on d i sconnec t sys t em for spo i ler fun<: ti o nal il y as o f th e ell"'ective da t e of th is A D
. or w i thin 400 11i ght hours a t\e r t he cnecth r e date of t h is AD
. \vh ichcvc r o cc u r s 

### firs1: R ev i se t he main t enance o r i n spectio n ptog r a.m, 

### as ap p l ic- able
. t o inco rpor a t e repe t i t ive ope ration a l tests of the a i le ron d i sco n .nc cc sys t em fiJr SpOi le r f u

nc t ional i ty, an d a ll app l ic-a ble COI' r ect ive ac t io n s . using a me t hod approved by the Manage r , New York ACO, ANE

- 1 7 0, FAA
. " Th is le it er app r oves rev i si n g the maintenance or inspectio n progmm by incorporat in g Bombardier**BD- 100** **-I AIO~**  Ti me Lim its/Mo i mem 1n ce Checks ( TLM C) Manual Pan 3 ta s k**27~1 ·00-301.**  ·Operational Test of the Aileron D i sco nnc<:t System.' in lo l he ma intenance program manual as a me t hod of comp l ian ce (MOC) to parag raph (g) of AD 2015- 1 5-08.In u ccor d a ncc 1\i t h FAA Or d er 8 11 0
. 1 03A. da t ed Sep t ember 2 8
. 20 I 0 , the foll ow ing co n ditio n s app ly : I. All provis ions o f 

### A D 2015

- 15-0 Sdull are no t s peci f i cally r e i<:rc n ced abo ve r t:ma in fully app l ic. able and mu s t be comp l ie d w i t h acc .o rding ly
. 2
. T h i s appro val i s appli c ab l e only to Bomba r d ie r I nc . Models BD · IO O

·IA I 0 ( Challenger 300 ), equipped with a spoi l er elec tron ic control u ni t (SECIJ) ha\ • ing J )ll n**numbe~ ·**  

### (1'/N) C

47 3JO .Q 06, C47JJ0-007. 

### o r C 47 330 · 00 8 e<r1 itl e d in any 

### category. 2

3
. Th is MOC i s tran sfe rab le
. A trans f e rab l e MOC is an tv i' O C t ha t will com inue to app ly t o a p r od u ct af t e r it has bee n t ransfe rr ed t o a new O \\

ne r /o pern t or. 4
. Be fore us i n g t hi s MOC , n o t i fy yo ur a p p

rop rinte 

### p ri n ci r ml i ns pecwr, o r lacki n g a princ i pal i n

s p ecto r . t he mana ger of t he loc al fli g ht stand a rds di s trict oflice/c e .n i l ico.te h ol d ing d ist r ic t o ffi ce . Th i s MOC on l y app l i es to th e FAA A D l is ted a b ove . Th e F AA d o es no t h ave the au t hori ty t o a ppro ve t h is as a n MOC t o any AD i ssued b y anolhe r c iv i l a v j ation a Uiho r i ty (CA A)
. Ap prov a l o f an MOC to an ot h

er CAA ·sAD must come fr o m th a t CAA
. Th is approva l i s subjec t 10 t he 

### t bllowir l g co r ldi t i Orl : T h e N ew Y o r k J \ i rcraft Ceni fi cat ion Offic-e (N Y ACO ) wi ll re vo ke t h i s . MOC i f t h e NYACO la t e r d e1c m 1 inc s that th i s MOC d o es n o t p r ovid e an a cc . e

p t

ab l e l evel o f safc
. t y . If you have an y ques t io n s 

### pe r 1a

i n

i n

g to this mauer, you m ay comac- t**Ass~ a** **es.~l in** **e** at 5 16

- 228

- 7 30 1 S in cerely. 

# 1-**r.r~** .fo**~:~Gae ano**  S cio rt i no Manager, New York Ai r craft Certi ficati on Ollice
cc. Ja me s D elis io (I'DF Copy) Assata Dcssa l ine ( PDF Copy}