Federal Register / Vol. 78, No. 156 / Tuesday, August 13, 2013 / Proposed Rules 49227 

Issued in Kansas City, Missouri, on August 

6, 2013. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2013–19530 Filed 8–12–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0687; Directorate 

Identifier 2012–NM–118–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for all 

Bombardier, Inc. Model CL–600–2B19 

(Regional Jet Series 100 & 440) 

airplanes. This proposed AD was 

prompted by reports of burr marks on 

the primary wheels, and cracked rings 

on the primary wheel shaft, on certain 

horizontal stabilizer trim actuators 

(HSTAs). This proposed AD would 

require replacing certain HSTAs. We are 

proposing this AD to prevent burr marks 

on the primary wheels, and cracked 

rings on the primary wheel shaft, on 

certain HSTAs, which may lead to a 

disconnect of the pitch trim surface and 

subsequent loss of pitch control, 

resulting in loss of control of the 

airplane. 

DATES: We must receive comments on 

this proposed AD by September 27, 

2013. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Bombardier, 

Inc., 400 Coˆte-Vertu 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. For information on 

the availability of this material at the 

FAA, call 425–227–1221. 

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 this proposed AD, 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. 

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: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2013–0687; Directorate Identifier 

2012–NM–118–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 


ehiers on DSK2VPTVN1PROD with PROPOSALS-1EP13AU13.010</GPH>
49228 Federal Register / Vol. 78, No. 156 / Tuesday, August 13, 2013 / Proposed Rules 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

Transport Canada Civil Aviation, 

which is the aviation authority for 

Canada, has issued Canadian 

Airworthiness Directive CF–2012–18, 

dated May 29, 2012 (referred to after 

this as the Mandatory Continuing 

Airworthiness Information, or ‘‘the 

MCAI’’), to correct an unsafe condition 

for the specified products. The MCAI 

states: 

It was discovered that a number of primary 

wheels on the HSTA P/N [part number] 

601R92305–5 (or vendor P/N 8396–4) had 

burr marks. Investigation revealed that the 

burr marks were a result of incorrectly using 

the manufacturing process. In addition, some 

rings that were fitted on the primary wheel 

shaft were found cracked. If not corrected, 

this condition may lead to a disconnect of the 

pitch trim surface and subsequent loss of 

pitch control. 

This [Canadian] AD mandates the removal 

of the affected units that have the above 

described manufacturing defect. 

Corrective actions include replacement 

of certain HSTAs. You may obtain 

further information by examining the 

MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 601R–27–159, dated June 15, 

2011. The actions described in this 

service bulletin are intended to correct 

the unsafe condition identified in the 

MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

While the Applicability of Transport 

Canada Civil Aviation (TCCA) Canadian 

AD CF–2012–18, dated May 29, 2012, is 

Bombardier, Inc. Model CL–600–2B19 

(Regional Jet Series 100 & 440) 

airplanes, serial numbers 7003 and 

subsequent, equipped with HSTAs 

having P/N 601R92305–5 or vendor P/ 

N 8396–4, with serial numbers (S/N)s 

287, 724, 813, 841, 998, 1031, 1035, 

1049, 1053, 1067, 1068, 1136, 1252, 

1268, 1303, 1319, 1338, 1354, 1374, 

1378, 1445, 1470, 1498, 1513, 1546, 

1632, 1736, 1766, 1846, 1849, 2002 

through 2009, 2011, 2013 through 2016, 

2019, 2020, and 2022; the applicability 

of this AD is for all Bombardier, Inc. 

Model CL–600–2B19 (Regional Jet 

Series 100 & 440) airplanes. This has 

been coordinated with TCCA. 

While TCCA Canadian AD CF–2012– 

18, dated May 29, 2012, does not allow 

for a records review to verify part 

numbers, paragraph (g) of this AD does 

allow for a records review to be used to 

verify part numbers. 

Costs of Compliance 

We estimate that this proposed AD 

affects 575 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replacement ........................... 19 work-hours × $85 per hour = $1,615 ................................ $0 $1,615 $928,625 

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 proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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 this proposed regulation: 

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 proposed 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. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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: 


ehiers on DSK2VPTVN1PROD with PROPOSALS-1
Federal Register / Vol. 78, No. 156 / Tuesday, August 13, 2013 / Proposed Rules 49229 

Bombardier, Inc.: Docket No. FAA–2013– 

0687; Directorate Identifier 2012–NM– 

118–AD. 

(a) Comments Due Date 

We must receive comments by September 

27, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Bombardier, Inc. 

Model CL–600–2B19 (Regional Jet Series 100 

& 440) airplanes, certificated in any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 27, Flight Controls. 

(e) Reason 

This AD was prompted by reports of burr 

marks on the primary wheels, and cracked 

rings on the primary wheel shaft, on certain 

HSTAs. We are issuing this AD to prevent 

burr marks on the primary wheels, and 

cracked rings on the primary wheel shaft, on 

certain HSTAs, which may lead to a 

disconnect of the pitch trim surface and 

subsequent loss of pitch control, resulting in 

loss of control 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 

Within 1,000 flight hours or 4 months after 

the effective date of this AD, whichever 

occurs first, inspect to determine if any 

HSTA having part number (P/N) 601R92305– 

5 or vendor P/N 8396–4, with serial numbers 

(S/N)s 287, 724, 813, 841, 998, 1031, 1035, 

1049, 1053, 1067, 1068, 1136, 1252, 1268, 

1303, 1319, 1338, 1354, 1374, 1378, 1445, 

1470, 1498, 1513, 1546, 1632, 1736, 1766, 

1846, 1849, 2002 through 2009, 2011, 2013 

through 2016, 2019, 2020, and 2022 is 

installed. A review of airplane maintenance 

records is acceptable in lieu of this 

inspection if the part number of the HSTA 

can be conclusively determined from that 

review. 

(h) Replacement 

Within 1,000 flight hours or 4 months after 

the effective date of this AD, whichever 

occurs first, replace the affected HSTAs 

identified in paragraph (g) of this AD, with 

a serviceable HSTA, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 601R–27–159, dated June 15, 

2011. 

(i) Parts Installation Limitations 

As of the effective date of this AD, no 

person may install any HSTA having P/N 

601R92305–5 or vendor P/N 8396–4 with a 

S/N listed in paragraph (g) of this AD, unless 

the S/N has the suffix ‘‘A’’ beside it. 

(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 ATTN: 

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 

(1) Refer to Mandatory Continuing 

Airworthiness Information Canadian 

Airworthiness Directive CF–2012–18, dated 

May 29, 2012, for related information, which 

can be found in the AD docket on the 

internet at http://www.regulations.gov. 

(2) 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. For 

information on the availability of this 

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

Issued in Renton, Washington, on August 

6, 2013. 

Jeffrey E. Duven, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–19534 Filed 8–12–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0690; Directorate 

Identifier 2013–NM–088–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede 

airworthiness directive (AD) 2009–24– 

07, which applies to certain The Boeing 

Company Model 737–600, –700, –700C, 

and –800 series airplanes. AD 2009–24– 

07 currently requires repetitive 

lubrications of the right and left main 

landing gear (MLG) forward trunnion 

pins. AD 2009–24–07 also requires an 

inspection for discrepancies of the 

transition radius of the MLG forward 

trunnion pins, and corrective actions if 

necessary. For certain airplanes, AD 

2009–24–07 requires repetitive detailed 

inspections for discrepancies (including 

finish damage, corrosion, pitting, and 

base metal scratches) of the transition 

radius of the left and right MLG 

trunnion pins, and corrective action if 

necessary. Replacing or overhauling the 

trunnion pins would terminate the 

actions required by AD 2009–24–07. 

This proposed AD would add airplanes 

to the applicability of AD 2009–24–07. 

We are proposing this AD to prevent 

stress corrosion cracking of the forward 

trunnion pins, which could result in 

fracture of the pins and consequent 

collapse of the MLG. 

DATES: We must receive comments on 

this proposed AD by September 27, 

2013. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https:// 

www.myboeingfleet.com. You may 

review copies of the referenced service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 


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