R eg ulat o r y Evaluation Docket No. FAA- Dir ecto rat e ldenti ft er: -AD /fynumuke changes lo ill<' ,·uhh'' in the Iahie h,·/n1r. 1"11/111111\l Cll'lll•' illl' lotuf, ltfJd,i!C clt'cordin,s:,h· I!

**til t~**  **\·** du 11 0 1. 

### dick (or J'ai>J into clllill/7<'11 out nfth e clwnged cell. Estimate d Costs: Action Costs per Product (e.g .. aircraft. engine. (e.g .. I nspection, propeller. appliance) replacem en t) Work-hours Labor Pa 11 s Cost Total Costs Numb e r o f Total Co s t Do not includ e o n- (include cost (labor · I 

## u.s. for U.S. Fleet co ndition cos t s h e re acces s, t e s tin g, 

### ( @$ 85 / h part s) R egiste • ·c d and close-up) our) Pr od u c t s 

### PN 23079946, Stage I Turbine $63,693 55 Wheel PN 23088784,



# ~ Stage I Turbine 5 Whee l

**~~** 

### PN 23088906 & I 

### 23089692, Stage I $63,693 14 HP Turbine Wheel PN 23084520, Stage 2 HP Tu rbin e 1.0 

### $ 1 3,941 406 Wheel PN 23084781. Stage 2 HP Turbine 1.0 

### $0 92 Whee l P

N 230888 I7. Stage 2 HP Turbin e 1.0 

### $0 16 Wheel PN 23088818. Stage 2 HP Turbine 1.0 ' I 

### $13,941 76 Wheel PN 23083536. Stage 4 Powe r $13, 186 0 Turbine Whee l ' ;· ' I



# . I
iJ 

## . 10The J..n u\\ n number 

# o r pr od u c ts in C.:O illl)li a nce: T o ta l C o s t s o f co mpli a nce l i.1 r U.S . f le e t : 

## - Cos ts cov ered under

**"arrant~** Ulknmm) 

## s O n-Co nditi on C o s ts: 

### @ - Ac ti on W o rk-hours L abor

**co~**
**t** 

# I Pan s Co s t C o s t per Produ ct (e . g .. In s pec ti on . (include

**accc s~.**  (ftll$ 85 t ho url

replacement) t e s tin g. and clo se up)



### -



# - ·- S pccial co n sidera ti o n s fo r Eco n o m ic

**nnl is**  **rU.~I.'** tfli . ,fidel to t!xplain

**w~ hin~**  i nth L· F . , timaf t •

cl (

**·o w~**  t ahll.' J/uu was 11 . 1\llllll.'tf or llll)!.htnot ht• oh l'i o 11 . 1 '. This {il.'ld cc m also ht • II

SI.'d to I.'Xplui n u ·orrtmf .l ' t'IJS/ s) : Exec uti ve Orde r 12866: C ou l d th e A D be co n s idered a .. s ig n ificant re g ula tory acti o n .. ? 

### YEs •(8] 0 

## 0 • E xp lanation : 

### T he S l3 s a n d C h apter 5 of th e Main t e nan ce Manual will l imi t th e l ife of th e ai'!Cctc d turbine wheel s . DOT R eg ulatory P o lici es and l' r oce durcs: Is th e AD -; ig nili ca nt ' 1 

## @ YES * 

### [8] NOD

***E ~planati** 

**:** 

### T he ' B s an d 

### C hapter 5 

### of th e Ma inte nan ce Manua l wi ll limit th e life 

# or the affec t ed turbine whee ls. Regulatory F l ex ibilit y Act: Will the AD have a s i g nifi ca nt ec o no mi c impact o n a s ub s tant i al mtmh er o f s mall e nt it i e s? E x plain l (w ei th er a Y es o r o a tl S \\er.



## .
**1~ 0-~**  **o€.. ~~**  v0DVLD

**E~p ana**  **tOn:** 

## A\

**~CliVe;-~** 

# 1 -r:l{-£ 

### us, Intr astate Av iat i o n in A l aska: YES 

## 0 NO 

### lXI 

## oE OlV



### ~A-10SP **e..'T** CA"TE6c Q..YI2- E7::. 1 0NA--'L K 1 L 

### rrf\1<. '(



### \.0~ C. 

## +I \.J 0 t) 

### LO (0 cT 

## 5 E: C...Ot-.JS1 

### U 

### [R.£1:) S(II)+K..-L 

### P-JflT1 

### CS . Thi -; AD w uld affec t intra s la tc avia ti o n in A la s ka . Is it appro pri a t e to include s pecific n :q uin : me nt s f o r air c raft o p< .:rated in A I:J sb w h e r

e a v intionmi g ht be lh e o nl ) mode o f tran spo rtati o n? 

### @ YF.S * 

## 0 0 

### !g) *Ex planati o n :


### I I