Federal Register / Vol. 77, No. 214 / Monday, November 5, 2012 / Proposed Rules 66413 

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 the 

Related Information section 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. 

(j) Related Information 

(1) For more information about this AD, 

contact Richard Rejniak, Aerospace Engineer, 

Electrical Systems and Avionics Branch, 

ACE–119W, FAA, Wichita Aircraft 

Certification Office, 1801 Airport Road, 

Room 100, Mid-Continent Airport, Wichita, 

Kansas 67209; phone: (316) 946–4128; fax 

(316) 946–4107; email: 

richard.rejniak@faa.gov. 

(2) For service information identified in 

this AD, contact Hawker Beechcraft 

Corporation, Department 62, P.O. Box 85, 

Wichita, KS 67201–0085; telephone 316– 

676–8238; fax 316–676–6706; email 

tmdc@hawkerbeechcraft.com; Internet 

https://www.hawkerbeechcraft.com/ 

service_support/pubs. 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 October 

24, 2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–26958 Filed 11–2–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1155; Directorate 

Identifier 2012–NM–115–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 certain 

Bombardier, Inc. Model DHC–8–400 

series airplanes. This proposed AD was 

prompted by reports of chafing found on 

the main landing gear (MLG) yoke. The 

chafing was attributed to contact 

between the nacelle fire detection wires 

and the MLG yoke. This proposed AD 

would require inspections of the nacelle 

fire detection wires and the MLG yoke 

for damage; replacing nacelle fire 

detection wires, if necessary; repairing 

the MLG yoke, if necessary; and 

installing new brackets and associated 

hardware to secure the fire detection 

wires. We are proposing this AD to 

prevent chafing between the nacelle fire 

detection wires and the MLG yoke. 

Chafing could lead to cracking and 

subsequent failure of the MLG yoke, 

which could adversely affect the safe 

landing of the airplane. In addition, 

chafing of the nacelle fire detection 

wires could cause them to fail and 

prevent the detection of a fire in the 

nacelle assembly. 

DATES: We must receive comments on 

this proposed AD by December 20, 

2012. 

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 Bombardier, 

Inc., Q-Series Technical Help Desk, 123 

Garratt Boulevard, Toronto, Ontario 

M3K 1Y5, Canada; telephone 416–375– 

4000; fax 416–375–4539; email 

thd.qseries@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, 

Washington. 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: 

Assata Dessaline, Aerospace Engineer, 

Avionics and Services Branch, ANE– 

171, FAA, New York Aircraft 

Certification Office (ACO), 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone (516) 228–7301; fax 

(516) 794–5531. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2012–1155; Directorate Identifier 2012– 

NM–115–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 

closing date and may amend this 

proposed AD because of 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 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2012–15, 

dated April 30, 2012 (referred to after 

this as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

There have been two (2) in-service reports 

of chafing found on the main landing gear 

(MLG) yoke. The chafing was attributed to 

contact between the nacelle fire detection 

wire and the MLG yoke. This chafing may 

lead to cracking and subsequent failure of the 

MLG yoke. 

Failure of the MLG yoke could adversely 

affect the safe landing of the aeroplane. In 

addition, failure of the fire detection wire 

could prevent the detection of a fire in the 

nacelle assembly. 

This [Canadian] Airworthiness Directive 

(AD) mandates the [detailed] inspection of 

the nacelle fire detection wires and [detailed 

inspection of the] MLG yoke for damage 

[chafing, nicks, cracking] and the installation 

of new brackets to secure the fire detection 

wire to prevent chafing against the MLG yoke 

[and corrective actions if necessary]. 

Corrective actions include replacing 

damaged wires with new wires and 

repairing the MLG yoke. You may 

obtain further information by examining 

the MCAI in the AD docket. 

WREIER-AVILES on DSK5TPTVN1PROD with PROPOSALS

66414 Federal Register / Vol. 77, No. 214 / Monday, November 5, 2012 / Proposed Rules 

Relevant Service Information 

Bombardier, Inc. has issued Service 

Bulletin 84–26–11, Revision A, dated 

January 25, 2012. 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 Proposed AD 

and the MCAI or Service Information 

Although the MCAI specifies to 

contact the manufacturer for 

instructions to repair certain conditions, 

this proposed AD would require 

repairing those conditions using a 

method approved by either the Manager, 

New York Aircraft Certification Office 

(ACO), ANE–170, FAA; or TCCA (or its 

delegated agent). 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 80 products of U.S. registry. 

We also estimate that it would take 

about 3 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $332 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$46,960, or $587 per product. 

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 airworthiness 

directive (AD): 

Bombardier, Inc.: Docket No. FAA–2012– 

1155; Directorate Identifier 2012–NM– 

115–AD. 

(a) Comments Due Date 

We must receive comments by December 

20, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

DHC–8–400, –401, and –402 airplanes; 

certificated in any category; serial numbers 

4001 through 4382 inclusive. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 26, Fire protection. 

(e) Reason 

This AD was prompted by reports of 

chafing found on the main landing gear 

(MLG) yoke. We are issuing this AD to 

prevent chafing between the nacelle fire 

detection wires and the MLG yoke. Chafing 

could lead to cracking and subsequent failure 

of the MLG yoke, which could adversely 

affect the safe landing of the airplane. In 

addition, chafing of the nacelle fire detection 

wires could cause them to fail and prevent 

the detection of a fire in the nacelle 

assembly. 

(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) Inspections and Installation 

Within 6,000 flight hours or 36 months 

after the effective date of this AD, whichever 

occurs first, accomplish the actions specified 

in paragraphs (g)(1), (g)(2), and (g)(3) of this 

AD, in accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

84–26–11, Revision A, dated January 25, 

2012. 

(1) Do a detailed inspection of the left and 

right nacelle fire detection wires for damage 

(i.e., chafing), in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–26–11, Revision A, dated 

January 25, 2012. If damage is found on any 

nacelle fire detection wire: Before further 

flight, remove and replace the damaged wire 

with a new wire, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–26–11, Revision A, dated 

January 25, 2012. 

(2) Do a detailed inspection of the MLG 

yoke for damage (e.g., chafing, nicks, 

cracking). 

(i) If any damage is found within the 

limitations specified in Figure 8 of 

Bombardier Service Bulletin 84–26–11, 

Revision A, dated January 25, 2012: Before 

further flight, repair the MLG yoke, in 

accordance with Figure 9, steps 1 through 10, 

of Bombardier Service Bulletin 84–26–11, 

Revision A, dated January 25, 2012. 

(ii) If any damage exceeds the limitations 

specified in Figure 8 of Bombardier Service 

Bulletin 84–26–11, Revision A, dated January 

WREIER-AVILES on DSK5TPTVN1PROD with PROPOSALS

Federal Register / Vol. 77, No. 214 / Monday, November 5, 2012 / Proposed Rules 66415 

25, 2012: Before further flight, repair the 

MLG yoke using a method approved by either 

the Manager, New York Aircraft Certification 

Office (ACO), ANE–170, FAA; or Transport 

Canada Civil Aviation (or its delegated 

agent). The approved repair must specifically 

reference this AD. 

(3) Install new brackets and associated 

hardware, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 84–26–11, Revision A, dated 

January 25, 2012. 

(h) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraphs (g)(1), (g)(2), and 

(g)(3) of this AD, if those actions were 

performed before the effective date of this AD 

using Bombardier Service Bulletin 84–26–11, 

dated December 19, 2011. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York 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, New York 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. 

(j) Related Information 

(1) Refer to MCAI Canadian Airworthiness 

Directive CF–2012–15, dated April 30, 2012; 

and Bombardier Service Bulletin 84–26–11, 

Revision A, dated January 25, 2012; for 

related information. 

(2) For service information identified in 

this AD, contact Bombardier, Inc., Q-Series 

Technical Help Desk, 123 Garratt Boulevard, 

Toronto, Ontario M3K 1Y5, Canada; 

telephone 416–375–4000; fax 416–375–4539; 

email thd.qseries@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, 

Washington. For information on the 

availability of this material at the FAA, call 

425–227–1221. 

Issued in Renton, Washington, on October 

24, 2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–26940 Filed 11–2–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1157; Directorate 

Identifier 2012–NM–061–AD] 

RIN 2120–AA64 

Airworthiness Directives; BAE 

SYSTEMS (Operations) Limited Model 

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 BAE 

Systems (Operations) Limited Model 

BAe 146 and Avro 146–RJ series 

airplanes. This proposed AD was 

prompted by a report that certain 

ceramic terminal blocks, through which 

the wiring for the engine fire 

extinguishers, fire detection circuits, 

and engine and intake anti-ice system 

are routed, have been found to have 

moisture ingress which can degrade the 

insulation resistance of the ceramic 

terminal blocks. This proposed AD 

would require a one-time insulation 

resistance test of ceramic terminal 

blocks, and if necessary, replacement of 

the blocks. We are proposing this AD to 

prevent latent failure of the number 2 

fire bottle, which, in the event of an 

engine fire, could result in failure of the 

fire bottle to discharge when activated 

and possibly preventing the flightcrew 

from extinguishing an engine fire. 

DATES: We must receive comments on 

this proposed AD by December 20, 

2012. 

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 BAE Systems 

(Operations) Limited, Customer 

Information Department, Prestwick 

International Airport, Ayrshire, KA9 

2RW, Scotland, United Kingdom; 

telephone +44 1292 675207; fax +44 

1292 675704; email 

RApublications@baesystems.com; 

Internet http://www.baesystems.com/ 

Businesses/RegionalAircraft/index.htm. 

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: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone (425) 227–1175; 

fax (425) 227–1149. 

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–2012–1157; Directorate Identifier 

2012–NM–061–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 

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. 

WREIER-AVILES on DSK5TPTVN1PROD with PROPOSALS