61088 Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Rules and Regulations 

Order 13175. This action affects all 

applicants and recipients of EPA 

financial federal assistance and 

therefore no one entity type will be 

impacted disproportionally. Thus, 

Executive Order 13175 does not apply 

to this action. Although Executive Order 

13175 does not apply to this action, EPA 

has made a conscious effort to engage 

tribal entities on changes to federal 

financial assistance requirements. EPA 

published materials summarizing these 

changes which can be found at http:// 

www.epa.gov/ogd/grants/

regulations.htm. EPA intends to host 

informational sessions tailored to tribal 

entities. 

G. Executive Order 13045: Protection of 

Children From Environmental Health 

Risks and Safety Risks 

The EPA interprets Executive Order 

13045 as applying only to those 

regulatory actions that concern 

environmental health or safety risks that 

the EPA has reason to believe may 

disproportionately affect children, per 

the definition of ‘‘covered regulatory 

action’’ in section 2–202 of the 

Executive Order. This action is not 

subject to Executive Order 13045 

because it does not concern an 

environmental health risk or safety risk. 

H. Executive Order 13211: Actions 

Concerning Regulations That 

Significantly Affect Energy Supply, 

Distribution, or Use 

This action is not subject to Executive 

Order 13211, because it is not a 

significant regulatory action under 

Executive Order 12866. 

I. National Technology Transfer and 

Advancement Act 

This action does not involve technical 

standards. 

J. Executive Order 12898: Federal 

Actions To Address Environmental 

Justice in Minority Populations and 

Low-Income Populations 

The EPA believes that it is not feasible 

to determine whether the human health 

or environmental risk addressed by this 

action will have potential 

disproportionately high and adverse 

effects on minority, low-income or 

indigenous populations. 

K. Congressional Review Act 

This action is subject to the CRA, and 

the EPA will submit a rule report to 

each House of the Congress and to the 

Comptroller General of the United 

States. This action is not a ‘‘major rule’’ 

as defined by 5 U.S.C. 804(2). 

List of Subjects 

2 CFR Part 1500 

Environmental protection, 

Accounting, Administrative practice 

and procedure, Colleges and 

universities, Grant programs, Hospitals, 

Indians, Intergovernmental relations, 

Loan programs, Nonprofit organizations, 

Reporting and recordkeeping 

requirements. 

40 CFR Part 30 

Environmental protection, 

Accounting, Colleges and universities, 

Grant programs, Hospitals, Nonprofit 

organizations, Reporting and 

recordkeeping requirements. 

40 CFR Part 31 

Environmental protection, 

Accounting, Administrative practice 

and procedure, Grant programs, Indians, 

Intergovernmental relations, Loan 

programs, Reporting and recordkeeping 

requirements. 

40 CFR Part 33 

Environmental protection, Grant 

programs, Minority businesses, 

Reporting and recordkeeping 

requirements. 

40 CFR Part 35 

Environmental protection, Air 

pollution control, Coastal zone, Grant 

programs, Hazardous waste, Indians, 

Intergovernmental relations, Pesticides 

and pests, Reporting and recordkeeping 

requirements, Technical assistance, 

Waste treatment and disposal, Water 

pollution control, Water supply. 

40 CFR Part 40 

Environmental protection, Grant 

programs, Reporting and recordkeeping 

requirements. 

40 CFR Part 45 

Environmental protection, Education, 

Grant programs, Reporting and 

recordkeeping requirements. 

40 CFR Part 46 

Environmental protection, Education, 

Grant programs, Reporting and 

recordkeeping requirements, 

Scholarships and fellowships. 

40 CFR Part 47 

Environmental protection, Education, 

Grant programs, Reporting and 

recordkeeping requirements. 

Dated: September 30, 2015. 

Gina McCarthy, 

Administrator. 

Accordingly, the interim rule 

amending 2 CFR part 1500 and 40 CFR 

parts 30, 31, 33, 35, 40, 45, 46, and 47 

which was published in the Federal 

Register at 79 FR 75867 on December 

19, 2014, is adopted as final with the 

following changes: 

Title 2—Grants and Agreements 

CHAPTER XV—ENVIRONMENTAL 

PROTECTION AGENCY 

PART 1500—UNIFORM 

ADMINISTRATIVE REQUIREMENTS, 

COST PRINCIPLES, AND AUDIT 

REQUIREMENTS FOR FEDERAL 

AWARDS 

■ 1. The authority citation for part 1500 

is revised to read as follows: 

Authority: 5 U.S.C. 301, 42 U.S.C. 241, 

242b, 243, 246, 1857 et seq., 33 U.S.C. 1251 

et seq., 42 U.S.C. 7401 et seq., 42 U.S.C. 6901 

et seq., 42 U.S.C. 300f et seq., 7 U.S.C. 136 

et seq., 15 U.S.C. 2601 et seq., 42 U.S.C. 9601 

et seq., 20 U.S.C. 4011 et seq., and 33 U.S.C. 

1401 et seq.; 2 CFR part 200. 

Subpart D—Post Federal Award 

Requirements 

§ 1500.11 [Amended] 

■ 2. In § 1500.11, paragraphs (c) and 

(f)(1)(i) are amended by removing 

‘‘ANSI/ASQ’’ and adding ‘‘ASQ/ANSI’’ 

in its place. 

[FR Doc. 2015–25833 Filed 10–8–15; 8:45 am] 

BILLING CODE 6560–50–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0677; Directorate 

Identifier 2013–NM–244–AD; Amendment 

39–18289; AD 2015–20–10] 

RIN 2120–AA64 

Airworthiness Directives; Gulfstream 

Aerospace Corporation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Gulfstream Aerospace Corporation 

Model GVI airplanes. This AD was 

prompted by reports of corrosion on inservice air non-return valves. This AD 

requires a revision to the Emergency 

Procedures section of the airplane flight 

manual (AFM). This AD also requires a 

revision to the maintenance or 

inspection program, as applicable, to 

incorporate airworthiness limitations for 

the high pressure (HP) Stage 5 air nonreturn valves. We are issuing this AD to 

ensure the flightcrew is provided with 


rmajette on DSK7SPTVN1PROD with RULES
Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Rules and Regulations 61089 

procedures to mitigate the risks 

associated with failure of the HP Stage 

5 air non-return valve. Failure of the HP 

Stage 5 air non-return valve in the open 

position could result in engine 

instability and uncommanded in-flight 

shutdown. 

DATES: This AD is effective November 

13, 2015. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of November 13, 2015. 

ADDRESSES: For service information 

identified in this AD, contact 

Gulfstream Aerospace Corporation, 

Technical Publications Dept., P.O. Box 

2206, Savannah, GA 31402–2206; 

telephone 800–810–4853; fax 912–965– 

3520; email pubs@gulfstream.com; 

Internet http://www.gulfstream.com/

product_support/technical_pubs/pubs/

index.htm. You may view this service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, WA. For information on 

the availability of this material at the 

FAA, call 425–227–1221. It is also 

available on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

0677. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

0677; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Docket Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Darby Mirocha, Continued Operational 

Safety and Certificate Management, 

ACE–102A, FAA, Atlanta Aircraft 

Certification Office (ACO), 1701 

Columbia Avenue, College Park, GA 

30337; phone: 404–474–5573; fax: 404– 

474–5606; email: Darby.Mirocha@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Gulfstream Aerospace 

Corporation Model GVI airplanes. The 

NPRM published in the Federal 

Register on March 31, 2015 (80 FR 

17005). The NPRM was prompted by 

reports of corrosion on in-service air 

non-return valves. Failure of the HP 

Stage 5 air non-return valve in the open 

position could result in engine 

instability and uncommanded in-flight 

shutdown. The NPRM proposed to 

require a revision to the Emergency 

Procedures section of the AFM and a 

revision to the maintenance or 

inspection program, as applicable, to 

incorporate airworthiness limitations for 

the HP Stage 5 air non-return valves. We 

are issuing this AD to ensure the 

flightcrew is provided with procedures 

to mitigate the risks associated with 

failure of the HP Stage 5 air non-return 

valve. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (80 

FR 17005, March 31, 2015) or on the 

determination of the cost to the public. 

Conclusion 

We reviewed the relevant data and 

determined that air safety and the 

public interest require adopting this AD 

as proposed except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (80 FR 

17005, March 31, 2015) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the (NPRM 80 FR 17005, 

March 31, 2015). 

Interim Action 

We consider this AD interim action. 

The manufacturer is currently 

developing a modification that will 

positively address the unsafe condition 

identified in this AD. Once this 

modification is developed, approved, 

and available, we might consider 

additional rulemaking. 

Related Service Information Under 1 

CFR Part 51 

We reviewed Section 04–08–20, 

Normal Airstart—Automatic; Section 

04–08–30, Manual Airstart—Starter 

Assist; and Section 04–08–40, Manual 

Airstart—Windmilling; of Chapter 04, 

Emergency Procedures, of the 

Gulfstream GVI (G650) AFM, Document 

Number GAC–AC–G650–OPS–0001, 

Revision 5, dated August 12, 2013. This 

service information describes revised 

procedures for in-flight engine restart 

and operating procedures. 

In addition, we reviewed Section 05– 

10–10, Airworthiness Limitations, of 

Chapter 05, Time Limits/Maintenance 

Checks, of the Gulfstream GVI (G650) 

Maintenance Manual (MM), Revision 4, 

dated September 30, 2013. This service 

information adds an airworthiness 

limitation for the HP Stage 5 air nonreturn valve. 

This service information is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in the ADDRESSES section of 

this AD. 

Costs of Compliance 

We estimate that this AD affects 52 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

AFM revision ........................... 1 work-hour × $85 per hour = $85 ......................................... $0 $85 $4,420 

MM revision ............................ 1 work-hour × $85 per hour = $85 ......................................... 0 85 4,420 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701: 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 


rmajette on DSK7SPTVN1PROD with RULES
61090 Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Rules and Regulations 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

2015–20–10 Gulfstream Aerospace 

Corporation: Amendment 39–18289; 

Docket No. FAA–2015–0677; Directorate 

Identifier 2013–NM–244–AD. 

(a) Effective Date 

This AD is effective November 13, 2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Gulfstream 

Aerospace Corporation Model GVI airplanes, 

certificated in any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 36, Pneumatic. 

(e) Unsafe Condition 

This AD was prompted by reports of 

corrosion on in-service air non-return valves. 

We are issuing this AD to ensure the 

flightcrew is provided with procedures to 

mitigate the risks associated with failure of 

the high pressure (HP) Stage 5 air non-return 

valve. Failure of the HP Stage 5 air nonreturn valve in the open position could result 

in engine instability and uncommanded inflight shutdown. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Revision of the Airplane Flight Manual 

(AFM) 

Within 30 days after the effective date of 

this AD: Revise the Emergency Procedures 

section of the AFM by inserting Section 04– 

08–20, Normal Airstart—Automatic; Section 

04–08–30, Manual Airstart—Starter Assist; 

and Section 04–08–40, Manual Airstart— 

Windmilling; of Chapter 04, Emergency 

Procedures; of the Gulfstream GVI (G650) 

AFM, Document Number GAC–AC–G650– 

OPS–0001, Revision 5, dated August 12, 

2013. 

(h) Revision of Maintenance or Inspection 

Program 

Within 30 days after the effective date of 

this AD: Revise the airplane maintenance 

manual or inspection program, as applicable, 

by incorporating the requirement for the HP 

Stage 5 air non-return valve from Section 05– 

10–10, Airworthiness Limitations, of Chapter 

05, Time Limits/Maintenance Checks, of the 

Gulfstream GVI (G650) Maintenance Manual 

(MM), Revision 4, dated September 30, 2013. 

The initial compliance time for replacement 

of the HP Stage 5 air non-return valve is at 

the applicable time specified in Section 05– 

10–10, Airworthiness Limitations, of Chapter 

05, Time Limits/Maintenance Checks, of the 

Gulfstream GVI (G650) MM, Revision 4, 

dated September 30, 2013, or within 30 days 

after the effective date of this AD, whichever 

occurs later. 

(i) No Alternative Actions or Intervals 

After the maintenance or inspection 

program has been revised, as required by 

paragraph (h) of this AD, no alternative 

actions (e.g., inspections) or intervals may be 

used unless the actions or intervals are 

approved as an alternative method of 

compliance in accordance with the 

procedures specified in paragraph (j) of this 

AD. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Atlanta Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in 

paragraph (k) of this AD. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/

certificate holding district office. 

(k) Related Information 

For more information about this AD, 

contact Darby Mirocha, Continued 

Operational Safety and Certificate 

Management, ACE–102A, FAA, Atlanta 

Aircraft Certification Office (ACO), 1701 

Columbia Avenue, College Park, GA 30337; 

phone: 404–474–5573; fax: 404–474–5606; 

email: Darby.Mirocha@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Section 04–08–20, Normal Airstart— 

Automatic, of Chapter 04, Emergency 

Procedures, of the Gulfstream GVI (G650) 

Airplane Flight Manual, Document Number 

GAC–AC–G650–OPS–0001, Revision 5, dated 

August 12, 2013. 

(ii) Section 04–08–30, Manual Airstart— 

Starter Assist, of Chapter 04, Emergency 

Procedures, of the Gulfstream GVI (G650) 

Airplane Flight Manual, Document Number 

GAC–AC–G650–OPS–0001, Revision 5, dated 

August 12, 2013. 

(iii) Section 04–08–40, Manual Airstart— 

Windmilling, of Chapter 04, Emergency 

Procedures, of the Gulfstream GVI (G650) 

Airplane Flight Manual, Document Number 

GAC–AC–G650–OPS–0001, Revision 5, dated 

August 12, 2013. 

(iv) Section 05–10–10, Airworthiness 

Limitations, of Chapter 05, Time Limits/

Maintenance Checks, of the Gulfstream GVI 

(G650) Maintenance Manual, Revision 4, 

dated September 30, 2013. 

(3) For service information identified in 

this AD, contact Gulfstream Aerospace 

Corporation, Technical Publications Dept., 

P.O. Box 2206, Savannah, GA 31402–2206; 

telephone 800–810–4853; fax 912–965–3520; 

email pubs@gulfstream.com; Internet http://

www.gulfstream.com/product_support/

technical_pubs/pubs/index.htm. 

(4) You may view this service information 

at FAA, Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 


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Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Rules and Regulations 61091 

Issued in Renton, Washington, on 

September 30, 2015. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–25495 Filed 10–8–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0913; Directorate 

Identifier 2012–NE–23–AD; Amendment 39– 

18261; AD 2015–18–03] 

RIN 2120–AA64 

Airworthiness Directives; Honeywell 

International Inc. Turboprop Engines 

(Type Certificate Previously Held by 

AlliedSignal Inc., Garrett Engine 

Division; Garrett Turbine Engine 

Company; and AiResearch 

Manufacturing Company of Arizona) 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Honeywell International Inc. TPE331–5, 

–5A, –5AB, –5B, –10, –10R, –10U, 

–10UF, –10UG, –10UGR, and –10UR 

model turboprop engines. This AD was 

prompted by engine propeller shaft 

coupling failures, leading to unexpected 

propeller pitch changes causing 

increased aerodynamic and asymmetric 

drag on the airplanes using these 

engines. This AD requires removing 

certain part number (P/N) engine 

propeller shaft couplings from service. 

This AD also requires inserting a copy 

of certain airplane operating procedures 

into applicable flight manuals. We are 

issuing this AD to prevent loss of 

airplane control, leading to an accident. 

DATES: This AD is effective November 

13, 2015. 

ADDRESSES: For service information 

identified in this AD, contact Honeywell 

International Inc., 111 S. 34th Street, 

Phoenix, AZ 85034–2802; phone: 800– 

601–3099; Internet: http://

portal.honeywell.com. You may view 

this service information at the FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, 

MA. For information on the availability 

of this material at the FAA, call 781– 

238–7125. It is also available on the 

Internet at http://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2012–0913. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2012– 

0913; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Joseph Costa, Aerospace Engineer, Los 

Angeles Aircraft Certification Office, 

FAA, Transport Airplane Directorate, 

3960 Paramount Blvd., Lakewood, CA 

90712–4137; phone: 562–627–5246; fax: 

562–627–5210; email: joseph.costa@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Honeywell 

International Inc. TPE331–5, –5A, 

–5AB, –5B, –10, –10R, –10U, –10UF, 

–10UG, –10UGR, and –10UR model 

turboprop engines. The NPRM 

published in the Federal Register on 

May 12, 2014 (79 FR 26906). The NPRM 

was prompted by numerous reports of 

engine propeller shaft coupling failures, 

leading to engine overspeed and 

unexpected propeller pitch changes. 

This condition causes high aerodynamic 

and asymmetric drag that has resulted 

in uncommanded airplane yaw and roll. 

The NPRM proposed to require 

removing certain P/N engine propeller 

shaft couplings from service within 

certain compliance times to address the 

flight safety risk. The NPRM also 

proposed to insert a copy of certain 

airplane operating procedures into the 

applicable flight manuals. These 

procedures describe an emergency 

procedure for pilot reaction to an engine 

overspeed event after an engine 

propeller shaft coupling failure. We are 

issuing this AD to prevent loss of 

airplane control, leading to an accident. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comment 

received on the NPRM (79 FR 26906, 

May 12, 2014) and the FAA’s response 

to the comment. 

Request To Change Compliance Time 

Basis 

Honeywell International questioned 

whether compliance time should be 

stated in flight hours as opposed to 

flight cycles as used in the NPRM (79 

FR 26906, May 12, 2014). Major 

periodic inspections are based on hours 

and not cycles. 

We disagree. The FAA practice of 

stating compliance time is based on the 

component’s mode of failure. In this 

case the failure mode was fatigue; 

therefore, a compliance time in flight 

cycles is appropriate. We did not change 

this AD. 

Clarified Requirement 

Since we issued the NPRM (79 FR 

26906, May 12, 2014), we discovered 

that paragraph (e)(4) of the Compliance 

section required clarification. We 

clarified that paragraph in this AD by 

deleting the requirement to insert a copy 

of Honeywell International Inc. 

Operating Information Letter (OIL) and 

requiring that Figure 1 to Paragraph 

(e)—Airplane Operating Procedures be 

inserted. Reference to the OIL was 

added as related information. The 

replacement procedure provides 

simplified, more concise text, for 

increased clarity. 

Conclusion 

We reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting this AD 

with clarification. 

Costs of Compliance 

We estimate that this AD will affect 

485 engines installed on airplanes of 

U.S. registry. We also estimate that it 

will take about one hour per engine to 

perform the actions required by this AD, 

if done at the next scheduled turbine 

hot section inspection (HSI), and 40 

hours per engine if done during an 

unscheduled access of the engine 

propeller shaft coupling. We also 

estimate that 400 engines will have the 

replacement actions done at a scheduled 

time of next turbine HSI, and 85 engines 

will have the replacement actions done 

at an unscheduled access of the engine 

propeller shaft coupling. The average 

labor rate is $85 per hour. Required 

parts will cost about $12,000 per engine. 

Based on these figures, we estimate the 

total cost of this AD to U.S. operators to 

be $6,143,000. 


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