Docket No: FAA-2014-0758 

Directorate ID: 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, no signatures are 

required. 

No Has the referenced service information been revised since the NPRM was issued? If yes, 

list latest revision and attach a copy. Note that changes beyond the scope of the previously 

published NP RM will require a new notice. Contact the Directorate focal point for guidance. 

Instructions: Summarize all comments by issue (not by commenter) and provide your recommended resolution of 

each issue. All comments relating to the same issue should be discussed together. Do not list all of the issues 

from one commenter together. If changes 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 of the "non-repairable" to the following 

statement: If required, 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. 

Why is the change requested or how is it justified? If repairable, costs would be less. 

Do we agree? Yes 

If YES, we agree because the addition of"non-repairable" makes the description of the cost 

more accurate. Make the following changes to the AD: add "non-repairable" between "a" 

and MRB set." 

If PARTIALLY AGREE, we agree with because 

Make the following changes to the AD: 

If NO, 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 it justified? None 

Page I of3 
Do we agree? No 

If YES, we agree because Make the following changes to the AD: 

If PARTIALLY AGREE, 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 of the AD. This 

AD intends to require an initial inspection at 3,000 hour TIS. If any MRB's have greater than 

3,000 hours TIS and have not had their initial inspection at the time of AD issuance, those 

blades are required to have their initial inspection within the next 50 hours TIS. 

For additional issues, double-click here 

Page 2 of3 
Signature Section 

Signature indicates concurrence with this action. 

Originating Office Tracking No.: 20 13-SW-062-AD 

ASE Printed Name: Nicholas Faust Date 

Date 

Page 3 of3 
Comments on Airworthiness Directive 

Docket No. FAA-2014-0758 Directorate Identifier 2013-SW -062-AD 

Document Number 2014-23588 Document Citation 79 FR 59697 

Kaman Aerospace Corporation has two comments as follows: 

(1) In the section titled, Cost of Compliance; 

Suggested wording is as follows : 

If required, 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) In the section titled, PART 39-AIRWORTHINESS DIRECTIVES under (e) Required 

Actions; 

Suggested wording is as follows: 

When the MRB reaches 3,000 hours time-in-service (TIS) and before it reaches 

3050 hours TIS, and thereafter at intervals not exceeding 1,000 hours TIS: