Docket No: FAA-2014-0758 DirectorateID: 2013-SW-062-AD Originating Office Tracking No.: Disposition Comments

Next Step: [81 FRAN 0SNPRM 

### D These comments are in response to an SNPRM



## 0 No Comments/Only Supportive Comments Received- 

## If this box is checked, nosignatures are required. No Has the referenced service information been revised since theNPRM was issued? 

### Ifyes, list latest revision and attach a copy. Note that changes beyondthe scope of thepreviously publishedNPRMwill require a new notice. Contact the Directorate focalpoint for guidance.
Instructions: Summarize all comments by issue (not by commenter) and provide yourrecommended resolution of each issue. All comments relating to the same issue should be discussed together. Do not list all ofthe issues from one commentertogether. Ifchanges to the AD are required based on the comments received, explain why and describe in detail what change(s)you recommend. Reference FAA-IR-M-8040.1C Chapter 9. ISSUE 1: Select one of the following: costs 

## If

other, explain: Commenter(s): Kaman Aerospace Corporation What change to the AD action is requested? The addition ofthe "non-repairable" to the following statement: Ifrequired, replacing a non-repairable MRB setwould require about 

### 4 work-hours, and requiredparts would cost about 

### $495,000, for a cost perhelicopter of

### $495,340. Why is the change requested or how is itjustified? 

### Ifrepairable, costs would be less. Do we agree? Yes IfYES, we agree because the addition of"non-repairable" makesthe description ofthe cost more accurate. Make the following changes to the AD: add "non-repairable" between "a" and MRB set." IfPARTIALLY AGREE, we agree with because Make the following changes to the AD: IfNO, we don't agree because
ISSUE 2: Select one of the following: compliance time 

### If

other, explain: Commenter(s): Kaman Aerospace We disagree with because

What change to the AD action is requested? Change the wording in (e) Required Actions (1) to "When the 

### MRB reaches 

### 3,000 hours time-in -service (TIS) and before it reaches 

### 3,050 hours TIS,"
.... Why is the change requested or how is itjustified? None 

### Page I of3

### Do we agree? No IfYES, we agree because Make the following changes to the AD: IfPARTIALLYAGREE, we agree with because We disagree with because Make the following changes to the AD: lfNO, we don't agree because the suggested wording mis-interprets the intent ofthe AD. This AD intends to require an initial inspection at 3,000 hourTIS. 

### Ifany MRB's have greaterthan 3,000 hours TIS and have not had their initial inspection at the time ofAD issuance, those blades are required to have their initial inspection within the next 50 hours TIS.

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### Page 2 of3SignatureSection Signature indicates concurrence with this action. Originating Office Tracking No.: 2013-SW-062-AD


### ASE Printed Name: Nicholas Faust Date

Date



### Page 3 of3Comments on Airworthiness Directive Docket No. FAA-2014-0758 Directorate Identifier 2013-SW-062-AD Document Number2014-23588 Document Citation 79 FR 59697 Kaman Aerospace Corporationhas two comments as follows: (1) Inthe section titled, Cost of Compliance; Suggested wording is as follows : Ifrequired, replacing a non-repairable MRB set would require about 4 work-hours, and required parts would cost about $495,000., for a cost per helicopter of$495,340.
(2) Inthe section titled, PART 39-AIRWORTHINESSDIRECTIVESunder (e) Required Actions; Suggested wording is as follows:
When the MRB reaches 3,000 hours time-in-service (TIS) and before itreaches 3050 hours TIS, and thereafter 

### at intervals not exceeding 1,000 hours TIS: