Federal Register / Vol. 83, No. 134 / Thursday, July 12, 2018 / Rules and Regulations 32201 

(n) 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) Boeing Special Attention Service 

Bulletin 777–28–0078, Revision 3, dated 

December 19, 2017. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Contractual & Data 

Services (C&DS), 2600 Westminster Blvd., 

MC 110–SK57, Seal Beach, CA 90740–5600; 

telephone 562–797–1717; internet https://

www.myboeingfleet.com. 

(4) You may view this service information 

at the FAA, Transport Standards Branch, 

2200 South 216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

(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. 

Issued in Des Moines, Washington, on June 

29, 2018. 

Jeffrey E. Duven, 

Director, System Oversight Division, Aircraft 

Certification Service. 

[FR Doc. 2018–14702 Filed 7–11–18; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–0757; Product 

Identifier 2017–SW–022–AD; Amendment 

39–19327; AD 2018–14–07] 

RIN 2120–AA64 

Airworthiness Directives; Bell 

Helicopter Textron Canada Limited 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

serial numbered Bell Helicopter Textron 

Canada Limited (BHTC) Model 429 

helicopters. This AD requires marking a 

serial number on life-limited forward 

spars and actuator fitting assemblies. 

The actions of this AD are intended to 

prevent an unsafe condition on these 

products. 

DATES: This AD is effective August 16, 

2018. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain document listed in this AD 

as of August 16, 2018. 

ADDRESSES: For service information 

identified in this final rule, contact Bell 

Helicopter Textron Canada Limited, 

12,800 Rue de l’Avenir, Mirabel, Quebec 

J7J1R4; telephone (450) 437–2862 or 

(800) 363–8023; fax (450) 433–0272; or 

at http://www.bellcustomer.com/files/. 

You may review the referenced service 

information at the FAA, Office of the 

Regional Counsel, Southwest Region, 

10101 Hillwood Pkwy, Room 6N–321, 

Fort Worth, TX 76177. It is also 

available on the internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2017– 

0757. 

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–2017– 

0757; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this AD, the 

Transport Canada Civil Aviation 

(Transport Canada) AD, any 

incorporated-by-reference service 

information, the economic evaluation, 

any comments received, and other 

information. The street address for 

Docket Operations (phone: 800–647– 

5527) is 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: 

Helene Gandy, Aviation Safety 

Engineer, Regulations & Policy Section, 

Rotorcraft Standards Branch, FAA, 

10101 Hillwood Pkwy., Fort Worth, TX 

76177; telephone (817) 222–5413; email 

helene.gandy@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On January 26, 2018, at 83 FR 3628, 

the Federal Register published our 

notice of proposed rulemaking (NPRM), 

which proposed to amend 14 CFR part 

39 by adding an AD that would apply 

to Bell Model 429 helicopters, serial 

number (S/N) 57150, 57168, 57176, 

57210 through 57216, 57265, 57266, 

57267, and 57287, with a forward spar 

part number (P/N) 429–031–213–103 or 

429–031–213–104 or actuator fitting 

assembly P/N 429–031–222–101 or 429– 

031–222–102 installed. 

The NPRM proposed to require 

marking a serial number on life-limited 

forward spars and actuator fitting 

assemblies. The proposed requirements 

were intended to prevent the forward 

spar or actuator fitting assembly from 

remaining in service after reaching its 

life limit. This condition could result in 

failure of a forward spar or actuator 

fitting assembly and subsequent 

collapse of the landing gear. 

The NPRM was prompted by AD No. 

CF–2017–02, dated January 16, 2017, 

issued by Transport Canada, which is 

the aviation authority for Canada, to 

correct an unsafe condition for Bell 

Model 429 helicopters, S/N 57150, 

57168, 57176, 57210, 57211 through 

57216, 57265, 57266, 57267, and 57287. 

Transport Canada advises that forward 

spars P/N 429–031–213–103 and 429– 

031–213–104 and actuator fitting 

assembly P/N 429–031–222–101 and 

429–031–222–102 have life limits of 

30,000 and 19,000 Retirement Index 

Numbers, respectively. However, 

Transport Canada states these parts are 

not serialized, and therefore their 

accumulated usage is difficult to track, 

which creates a risk that these parts 

could remain in service beyond their 

life limits. This condition could result 

in failure of the part. 

Comments 

We gave the public the opportunity to 

participate in developing this AD, but 

we received no comments on the NPRM. 

FAA’s Determination 

These helicopters have been approved 

by the aviation authority of Canada and 

are approved for operation in the United 

States. Pursuant to our bilateral 

agreement with Canada, Transport 

Canada, its technical representative, has 

notified us of the unsafe condition 

described in the Transport Canada AD. 

We are issuing this AD because we 

evaluated all information provided by 

Transport Canada and determined the 

unsafe condition exists and is likely to 

exist or develop on other helicopters of 

these same type designs and that air 

safety and the public interest require 

adopting the AD requirements as 

proposed. 

Differences Between This AD and the 

Transport Canada AD 

The Transport Canada AD requires 

compliance within 12 months from its 

effective date, unless already 

accomplished. This AD requires 

compliance within 800 hours time-inservice. 

Related Service Information Under 1 

CFR Part 51 

We reviewed Bell Helicopter Alert 

Service Bulletin 429–16–34, dated 

November 10, 2016, which specifies 


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32202 Federal Register / Vol. 83, No. 134 / Thursday, July 12, 2018 / Rules and Regulations 

procedures for permanently marking 

each forward spar and actuator fitting 

assembly with the serial number of the 

helicopter. 

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. 

Other Related Service Information 

We also reviewed Bell Helicopter 

Model 429 Maintenance Manual BHT– 

429–MM–1, Chapter 4, Airworthiness 

Limitations Schedule, Revision 26, 

dated September 9, 2016, which 

specifies airworthiness life limits and 

inspection intervals for parts installed 

on Model 429 helicopters. 

Costs of Compliance 

We estimate that this AD affects 6 

helicopters of U.S. Registry and that 

labor costs average $85 per work-hour. 

We estimate that marking the forward 

spars and actuator fitting assemblies 

requires 1 work-hour, and no parts are 

needed. Based on these estimates, we 

expect a total cost of $85 per helicopter 

and $510 for the U.S. fleet. 

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 

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 

helicopters 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 to the extent that it justifies 

making a regulatory distinction; 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. 

We prepared an economic evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

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): 

2018–14–07 Bell Helicopter Textron 

Canada Limited: Amendment 39–19327; 

Docket No. FAA–2017–0757; Product 

Identifier 2017–SW–022–AD. 

(a) Applicability 

This AD applies to Bell Helicopter Textron 

Canada Limited Model 429 helicopters, serial 

number (S/N) 57150, 57168, 57176, 57210 

through 57216, 57265, 57266, 57267, and 

57287, with a forward spar part number 

(P/N) 429–031–213–103 or 429–031–213–104 

or actuator fitting assembly P/N 429–031– 

222–101 or 429–031–222–102 installed, 

certificated in any category. 

(b) Unsafe Condition 

This AD defines the unsafe condition as a 

forward spar or actuator fitting assembly 

remaining in service after reaching its life 

limit. This condition could result in failure 

of a forward spar or actuator fitting assembly 

and subsequent collapse of the landing gear. 

(c) Effective Date 

This AD becomes effective August 16, 

2018. 

(d) Compliance 

You are responsible for performing each 

action required by this AD within the 

specified compliance time unless it has 

already been accomplished prior to that time. 

(e) Required Actions 

(1) Within 800 hours time-in-service, clean 

and identify each forward spar and actuator 

fitting assembly with the helicopter serial 

number in accordance with the 

Accomplishment Instructions, paragraphs 3 

through 5 and with reference to Figure 1 of 

Bell Helicopter Alert Service Bulletin 429– 

16–34, dated November 10, 2016. 

(2) After the effective date of this AD, do 

not install a forward spar P/N 429–031–213– 

103 or 429–031–213–104 or actuator fitting 

assembly P/N 429–031–222–101 or 429–031– 

222–102 on any helicopter unless it has been 

marked with a serial number in accordance 

with paragraph (e)(1) of this AD. 

(f) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Safety Management 

Section, FAA, may approve AMOCs for this 

AD. Send your proposal to: Helene Gandy, 

Aviation Safety Engineer, Regulations & 

Policy Section, Rotorcraft Standards Branch, 

FAA, 10101 Hillwood Pkwy., Fort Worth, TX 

76177; telephone (817) 222–5413; email 9- 

ASW-FTW-AMOC-Requests@faa.gov. 

(2) For operations conducted under a 14 

CFR part 119 operating certificate or under 

14 CFR part 91, subpart K, we suggest that 

you notify your principal inspector, or 

lacking a principal inspector, the manager of 

the local flight standards district office or 

certificate holding district office before 

operating any aircraft complying with this 

AD through an AMOC. 

(g) Additional Information 

(1) Bell Helicopter Model 429 Maintenance 

Manual BHT–429–MM–1, Chapter 4, 

Airworthiness Limitations Schedule, 

Revision 26, dated September 9, 2016, which 

is not incorporated by reference, contains 

additional information about the subject of 

this AD. For service information identified in 

this AD, contact Bell Helicopter Textron 

Canada Limited, 12,800 Rue de l’Avenir, 

Mirabel, Quebec J7J1R4; telephone (450) 

437–2862 or (800) 363–8023; fax (450) 433– 

0272; or at http://www.bellcustomer.com/ 

files/. You may review the referenced service 

information at the FAA, Office of the 

Regional Counsel, Southwest Region, 10101 

Hillwood Pkwy., Room 6N–321, Fort Worth, 

TX 76177. 

(2) The subject of this AD is addressed in 

Transport Canada AD No. CF–2017–02, dated 

January 16, 2017. You may view the 

Transport Canada AD on the internet at 

http://www.regulations.gov in Docket No. 

FAA–2017–0757. 

(h) Subject 

Joint Aircraft Service Component (JASC) 

Code: 1100, Placards and Markings. 

(i) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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) Bell Helicopter Alert Service Bulletin 

429–16–34, dated November 10, 2016. 


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Federal Register / Vol. 83, No. 134 / Thursday, July 12, 2018 / Rules and Regulations 32203 

(ii) Reserved. 

(3) For Bell Helicopter Textron Canada 

Limited service information identified in this 

AD, contact Bell Helicopter Textron Canada 

Limited, 12,800 Rue de l’Avenir, Mirabel, 

Quebec J7J1R4; telephone (450) 437–2862 or 

(800) 363–8023; fax (450) 433–0272; or at 

http://www.bellcustomer.com/files/. 

(4) You may view this service information 

at FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood Pkwy., 

Room 6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

(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. 

Issued in Fort Worth, Texas, on June 1, 

2018. 

James A. Grigg, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2018–14701 Filed 7–11–18; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2017–1118; Product 

Identifier 2017–NE–40–AD; Amendment 39– 

19313; AD 2018–13–01] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Corporation Turboshaft Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Rolls-Royce Corporation (RRC) model 

250–C turboshaft engines. This AD was 

prompted by several reports of engine 

power loss, one of which resulted in a 

fatal helicopter accident. This AD 

requires removal of the power turbine 

governor (PTG) bearing assembly, part 

number (P/N) 2544198, and its 

replacement with a bearing assembly 

eligible for installation. We are issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective August 16, 

2018. 

ADDRESSES: For service information 

identified in this final rule, contact 

Rolls-Royce Corporation, 450 South 

Meridian Street, Mail Code NB–02–05, 

Indianapolis, IN 46225; phone: 317– 

230–3774; email: indy.pubs.services@

rolls-royce.com; internet: www.rollsroyce.com. You may view this service 

information at the FAA, Engine and 

Propeller Standards Branch, 1200 

District Avenue, Burlington, MA. For 

information on the availability of this 

material at the FAA, call 781–238–7759. 

It is also available on the internet at 

http://www.regulations.gov by searching 

for and locating Docket No. FAA–2018– 

1118. 

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–2017– 

1118; or in person at Docket Operations 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

The AD docket contains this final rule, 

the regulatory evaluation, any 

comments received, and other 

information. The address for Docket 

Operations (phone: 800–647–5527) is 

Docket Operations, 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: John 

Tallarovic, Aerospace Engineer, Chicago 

ACO Branch, FAA, 2300 E. Devon Ave., 

Des Plaines, IL 60018; phone: 847–294– 

8180; fax: 847–294–7834; email: 

john.m.tallarovic@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 Rolls-Royce 

Corporation (RRC) model 250–C 

turboshaft engines. The NPRM 

published in the Federal Register on 

February 1, 2018 (83 FR 4609). The 

NPRM was prompted by several reports 

of loss of engine power on certain RRC 

model 250–C turboshaft engines 

installed on single-engine helicopters. 

One of these instances of power loss 

resulted in a fatal helicopter accident on 

May 4, 2016. The NPRM proposed to 

require removal of the affected PTG 

bearing assembly and replace it with a 

bearing assembly with a new design. We 

are issuing this AD to address the unsafe 

condition on these products. 

Comments 

We gave the public the opportunity to 

participate in developing this final rule. 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Specify the New Bearing 

Assembly 

The NTSB and Honeywell Aerospace 

requested that the AD prohibit the 

installation of bearing assembly, P/N 

2544198, and specify the installation of 

the new bearing assembly, P/N 2526146. 

The NTSB expressed concern that 

differences between the proposed AD 

and the actions described in the 

Honeywell SB and Rolls-Royce CEBs 

could lead to the reinstallation of a 

dual-spool bearing into an affected PTG. 

We partially agree. We agree with the 

request to prohibit the installation of 

another bearing assembly, P/N 2544198, 

because our intent is to remove them 

from service. We disagree with the 

request to specify the installation of the 

new bearing assembly, P/N 2526146, 

because of the possibility of a new 

bearing P/N being introduced or the 

specified P/N being discontinued in the 

future. We added an installation 

prohibition paragraph to this AD to 

prohibit the installation of bearing 

assembly, P/N 2544198. 

Request To Re-Identify the PTG After 

Changing the Bearing Assembly 

The NTSB and Honeywell Aerospace 

requested that the AD require reidentifying the PTG P/N after changing 

the bearing assembly in accordance with 

the related service information. 

Honeywell Aerospace reasoned that 

maintenance personnel and operators 

could easily determine if the service 

bulletin has been accomplished. This 

increases the efficiency of operations 

and reduces the potential for 

misunderstandings about whether the 

bearing assembly has been replaced. 

We disagree. While re-identifying the 

PTG after changing the bearing assembly 

is helpful for maintenance personnel, 

we are not requiring this action within 

this AD. During the replacement of the 

bearing assembly, P/N 2544198, the 

related service information instructs 

personnel to re-identify the PTG. We 

did not change this AD. 

Request To Reduce the Compliance 

Time 

Honeywell Aerospace requested that 

we reduce the compliance time to 50 

hours or within 90 days for PTGs that 

have greater than 750 hours. The 

commenter reasoned that the original 

compliance schedule was established 10 

years ago based on field experience at 

that time. The fatal accident referenced 

in the NPRM occurred on a PTG with 

1,048.7 hours since new. 

We disagree. The compliance time for 

removing the bearing assembly, P/N 

2544198, in this AD is based on RollsVerDate Sep<11>2014 16:03 Jul 11, 2018 Jkt 244001 PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 E:\FR\FM\12JYR1.SGM 12JYR1

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