33206 Federal Register / Vol. 78, No. 107 / Tuesday, June 4, 2013 / Rules and Regulations 

certificate holding district office before 

operating any aircraft complying with this 

AD through an AMOC. 

(h) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6500: Tail Rotor Drive Bearing. 

(i) 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) Bell Alert Service Bulletin No. 214–13– 

74, Revision A, dated March 25, 2013. 

(ii) Bell Alert Service Bulletin No. 214ST– 

13–90, Revision A, dated March 25, 2013. 

(3) For Bell service information identified 

in this AD, contact Bell Helicopter Textron, 

Inc., P.O. Box 482, Fort Worth, TX 76101; 

telephone (817) 280–3391; fax (817) 280– 

6466; or at http://www.bellcustomer.com/ 

files/. 

(4) You may view this service information 

at FAA, Office of the Regional Counsel, 

Southwest Region, 2601 Meacham Blvd., 

Room 663, Fort Worth, Texas 76137. 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 May 17, 

2013. 

Kim Smith, 

Directorate Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–12720 Filed 6–3–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0930; Directorate 

Identifier 2011–NM–251–AD; Amendment 

39–17472; AD 2013–11–12] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc. Model BD–100–1A10 

(Challenger 300) airplanes. This AD was 

prompted by reports of failure of a 

screw cap or end cap of the hydraulic 

system accumulator while on the 

ground, which resulted in loss of use of 

that hydraulic system and high-energy 

impact damage to adjacent systems and 

structures. This AD would require 

inspecting for the correct serial number 

of a certain hydraulic system 

accumulator, and replacing affected 

hydraulic system accumulators with 

new or serviceable accumulators. We 

are issuing this AD to prevent failure of 

a screw cap or end cap and loss of the 

related hydraulic system, which could 

result in damage to airplane structure 

and consequent reduced controllability 

of the airplane. 

DATES: This AD becomes effective July 

9, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 9, 2013. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Cesar Gomez, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7318; fax (516) 794–5531. 

SUPPLEMENTARY INFORMATION:

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on September 6, 2012 (77 FR 

54846). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The Mandatory Continuing 

Airworthiness Information (MCAI) 

states: 

Seven cases of on-ground hydraulic 

accumulator screw cap/end cap failure have 

been experienced on CL–600–2B19 

aeroplanes, resulting in loss of the associated 

hydraulic system and high-energy impact 

damage to adjacent systems and structure. To 

date, the lowest number of flight cycles 

accumulated at the time of failure has been 

6991. 

Although there have been no failures to 

date on any BD–100–1A10 aeroplanes, 

accumulators similar to those installed on the 

CL–600–2B19 are installed on them. The 

affected part numbers (P/Ns) of the 

accumulators installed on BD–100–1A10 are 

900095–1 (Auxiliary Hydraulic System 

accumulator), 08–60219–001 (Inboard Brake 

accumulator), and 08–60218–001 (Outboard 

Brake accumulator). 

A detailed analysis of the calculated line 

of trajectory of a failed screw cap/end cap for 

the accumulator has been conducted, 

resulting in the identification of areas where 

systems and/or structural components could 

potentially be damaged. Although all of the 

failures to date have occurred on the ground, 

an in-flight failure affecting such components 

could potentially have an adverse effect on 

the controllability of the aeroplane. 

This [TCCA] directive provides the initial 

action by mandating the replacement of the 

Auxiliary Hydraulic System accumulators 

that are not identified by the letter ‘‘E’’ after 

the serial number on the identification plate. 

Further corrective actions are anticipated to 

rectify similar safety concerns with the 

Inboard and Outboard Brake accumulators. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request To Change Precipitating Event 

Language 

Bombardier asked that the language 

specifying that the NPRM (77 FR 54846, 

September 6, 2012) was prompted by 

‘‘auxiliary hydraulic accumulator failure 

due to end cap or screw cap’’ be 

changed. Bombardier stated that there is 

no record of such auxiliary hydraulic 

accumulator failure and added that the 

failures occurred on accumulators 

having a similar design. Bombardier 

asked that the word ‘‘auxiliary’’ be 

removed from the NPRM. 

We agree with the commenter for the 

reason provided. We have removed the 

word ‘‘auxiliary’’ from the Summary 

section and paragraph (e) of this AD. 

Request for Clarification of Effective 

Date of AD 

Bombardier asked if the compliance 

time in paragraphs (g)(1) and (g)(3) of 

the NPRM (77 FR 54846, September 6, 

2012) should refer to the date of 

Bombardier Service Bulletin 100–29–14, 

dated December 16, 2010, instead of the 

effective date of the AD. Bombardier 

stated that there is a significant 

difference between the release date of 

that service information and the 

effective date of the AD. 

We acknowledge the commenter’s 

concern and provide the following 

clarification. We do not agree that the 

compliance time should correspond to 

the release date of Bombardier Service 

Bulletin 100–29–14, dated December 16, 

2010. We do not intend to ground 

airplanes, but that could occur if the 

release date of this service information 

is used. Therefore, we must provide a 


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Federal Register / Vol. 78, No. 107 / Tuesday, June 4, 2013 / Rules and Regulations 33207 

compliance time to account for the time 

that has passed since this service 

information was issued. 

Shortening the compliance time 

would mean issuing a supplemental 

NPRM, and we do not consider it 

appropriate to further delay issuance of 

this final rule. We determined that a 

compliance time following the effective 

date of the AD is appropriate and 

represents an acceptable interval in 

which the inspection can be performed 

in a timely manner within the fleet, 

while still maintaining an adequate 

level of safety. Additionally, operators 

are always permitted to accomplish the 

requirements of an AD at a time earlier 

than the specified compliance time. We 

have made no change to the AD in this 

regard. 

Clarification of Address 

Bombardier also asked if the email 

address for business airplanes identified 

in paragraph (k)(2) of the NPRM (77 FR 

54846, September 6, 2012) is accurate. 

We contacted the manufacturer and 

verified that the email address 

identified in paragraph (k)(2) of the 

NPRM (77 FR 54846, September 6, 

2012) for obtaining service information 

from Bombardier, Inc., is the correct 

email address for business airplanes. We 

have made no change to the AD in this 

regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the change described previously. 

We also determined that this change 

will not increase the economic burden 

on any operator or increase the scope of 

the AD. 

Costs of Compliance 

We estimate that this AD affects 75 

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 

Inspection to determine part numbers ............ 1 work-hour × $85 per hour = $85 ................. $0 $85 $6,375 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

inspection. We have no way of 

determining the number of aircraft that 

might need these replacements. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Hydraulic accumulator replacement ............................. 4 work-hours × $85 per hour = $340 ........................... $0 $340 

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 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that 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 the 

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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains the NPRM (77 FR 54846, 

September 6, 2012), the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

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 AD: 

2013–11–12 Bombardier, Inc.: Amendment 

39–17472. Docket No. FAA–2012–0930; 

Directorate Identifier 2011–NM–251–AD. 


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33208 Federal Register / Vol. 78, No. 107 / Tuesday, June 4, 2013 / Rules and Regulations 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective July 9, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

BD–100–1A10 (Challenger 300) airplanes, 

certificated in any category, having serial 

numbers 20003 through 20335 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 29, Hydraulic Power. 

(e) Reason 

This AD was prompted by reports of failure 

of a screw-cap or end cap of the hydraulic 

system accumulator while on the ground, 

which resulted in loss of use of that 

hydraulic system and high-energy impact 

damage to adjacent systems and structures. 

We are issuing this AD to prevent failure of 

a screw cap or end cap and loss of the related 

hydraulic system, which could result in 

damage to airplane structure and consequent 

reduced controllability of the airplane. 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Inspection 

At the applicable time specified in 

paragraph (g)(1), (g)(2), or (g)(3) of this AD: 

Inspect the identification plate on the 

hydraulic system accumulator having part 

number (P/N) 900095–1 to determine if an 

‘‘E’’ is part of the suffix of the serial number 

stamped on the identification plate, as listed 

in paragraph 2.B. of the Accomplishment 

Instructions of Bombardier Service Bulletin 

100–29–14, dated December 16, 2010. A 

review of airplane maintenance records is 

acceptable in lieu of this inspection if the 

suffix of the serial number can be 

conclusively determined from that review. 

(1) For an accumulator that has 

accumulated more than 3,150 total flight 

cycles as of the effective date of this AD, 

inspect that accumulator within 350 flight 

cycles after the effective date of this AD. 

(2) For an accumulator that has 

accumulated 3,150 or fewer total flight cycles 

as of the effective date of this AD, inspect 

that accumulator before it has accumulated 

3,500 total flight cycles. 

(3) For an accumulator on which it is not 

possible to determine the total flight cycles 

accumulated as of the effective date of this 

AD, inspect that accumulator within 350 

flight cycles after the effective date of this 

AD. 

(h) Replacement 

If, during the inspection required by 

paragraph (g) of this AD, any accumulator 

having P/N 900095–1 is found on which the 

letter ‘‘E’’ is not part of the suffix of the serial 

number on the identification plate: Before 

further flight, replace the accumulator with a 

new or serviceable accumulator, in 

accordance with paragraph 2.C. of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 100–29–14, dated December 

16, 2010. 

(i) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install on any airplane a 

hydraulic system accumulator having P/N 

900095–1, on which the letter ‘‘E’’ is not part 

of the suffix of the serial number on the 

identification plate. 

(j) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 ACO, send it to the Program 

Manager, Continuing Operational Safety, 

FAA, New York ACO, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

(516) 228–7300; fax (516) 794–5531. 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. The AMOC approval 

letter must specifically reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(k) Related Information 

Refer to MCAI Canadian Airworthiness 

Directive CF–2011–41, dated October 31, 

2011; and Bombardier Service Bulletin 100– 

29–14, dated December 16, 2010; for related 

information. 

(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) Bombardier Service Bulletin 100–29–14, 

dated December 16, 2010. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–5000; fax 514– 

855–7401; email 

thd.crj@aero.bombardier.com; Internet http:// 

www.bombardier.com. You may review 

copies of the referenced service information 

at the FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, WA. 

(4) You may review copies of the 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. 

(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 Renton, Washington, on May 22, 

2013. 

Jeffrey E. Duven, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–12898 Filed 6–3–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF DEFENSE 

Department of the Navy 

32 CFR Part 706 

Certifications and Exemptions Under 

the International Regulations for 

Preventing Collisions at Sea, 1972 

AGENCY: Department of the Navy, DoD. 

ACTION: Final rule. 

SUMMARY: The Department of the Navy 

(DoN) is amending its certifications and 

exemptions under the International 

Regulations for Preventing Collisions at 

Sea, 1972 (72 COLREGS), to reflect that 

the Deputy Assistant Judge Advocate 

General (DAJAG) (Admiralty and 

Maritime Law) of the DoN has 

determined that USS THEODORE 

ROOSEVELT (CVN 71) is a vessel of the 

Navy which, due to its special 

construction and purpose, cannot 

comply fully with certain provisions of 

the 72 COLREGS without interfering 

with its special function as a naval ship. 

The intended effect of this rule is to 

warn mariners in waters where 72 

COLREGS apply. 

DATES: This rule is effective June 4, 2013 

and is applicable beginning May 20, 

2013. 

FOR FURTHER INFORMATION CONTACT: 

Lieutenant Jocelyn Loftus-Williams, 

JAGC, U.S. Navy, Admiralty Attorney, 

(Admiralty and Maritime Law), Office of 

the Judge Advocate General, Department 

of the Navy, 1322 Patterson Ave. SE., 

Suite 3000, Washington Navy Yard, DC 

20374–5066, telephone number: 202– 

685–5040 

SUPPLEMENTARY INFORMATION: Pursuant 

to the authority granted in 33 U.S.C. 

1605, the DoN amends 32 CFR Part 706. 

This amendment provides notice that 

the DAJAG (Admiralty and Maritime 

Law) of the DoN, under authority 

delegated by the Secretary of the Navy, 


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