37340 Federal Register / Vol. 77, No. 120 / Thursday, June 21, 2012 / Proposed Rules 

compliance for the requirements in this 

paragraph of this AD. It is acceptable to 

operate an airplane with one MLG having a 

P/N 41141–5 piston installed, and the other 

MLG having a P/N 41141–3 piston installed, 

provided all MLG P/N 41141–3 are replaced 

within the compliance times specified in 

paragraph (i) of this AD. 

(j) New Requirement: Parts Installation 

After 120 months after the effective date of 

this AD: No person may install a MLG piston, 

P/N 41141–3, or a MLG unit equipped with 

a MLG piston P/N 41141–3, on any airplane. 

(k) New Requirement: Revising the Airplane 

Maintenance Program 

Within two months after the effective date 

of this AD: Revise the airplane maintenance 

program by incorporating Task 321100–01– 

16, inspection of the MLG piston, and 

associated thresholds and intervals described 

in Fokker Engineering Report, MRB 

Appendix 1, SE–623, Issue 8, dated March 

17, 2011. The initial compliance time for 

Task 321100–01–16 is within two months 

after the effective date of this AD. 

(l) No Alternative Actions or Intervals 

After accomplishing the revisions required 

by paragraph (k) of this AD, no alternative 

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

used other than those specified in Fokker 

Engineering Report, MRB Appendix 1, SE– 

623, Issue 8, dated March 17, 2011, unless 

the actions and intervals are approved as an 

AMOC in accordance with the procedures 

specified in paragraph (m)(1) of this AD. 

(m) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, 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 International Branch, send it to ATTN: 

Tom Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; telephone 425–227–1137; fax 425–227– 

1149. Information may be emailed to: 9- 

ANM-116-AMOC-REQUESTS@faa.gov. 

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. 

(n) Related Information 

(1) Refer to MCAI European Aviation 

Safety Agency Airworthiness Directive 2011– 

0159, dated August 26, 2011; and the service 

information specified in paragraphs (n)(1)(i) 

through (n)(1)(iv) of this AD; for related 

information. 

(i) Fokker Service Bulletin SBF100–32– 

161, dated April 7, 2011. 

(ii) Fokker Services Engineering Report, 

MRB Appendix 1, SE–623, Issue 8, dated 

March 17, 2011. 

(iii) Goodrich Service Bulletin 41000–32– 

29, dated November 10, 2010. 

(iv) Fokker Service Bulletin SBF100–32– 

158, dated October 2, 2009. 

(2) For Fokker service information 

identified in this AD, contact Fokker Services 

B.V., Technical Services Dept., P.O. Box 231, 

2150 AE Nieuw-Vennep, the Netherlands; 

telephone +31 (0)252–627–350; fax +31 

(0)252–627–211; email 

technicalservices.fokkerservices@stork.com; 

Internet http://www.myfokkerfleet.com. For 

Goodrich service information identified in 

this AD, contact Goodrich, 1400 South 

Service Road, West Oakville, L6L 5Y7, 

Ontario, Canada, telephone +1–905–827– 

7777; fax +1–905–825–1583; Internet http:// 

www.goodrich.com/TechPubs. 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 June 12, 

2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–15166 Filed 6–20–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0642; Directorate 

Identifier 2011–NM–262–AD] 

RIN 2120–AA64 

Airworthiness Directives; BAE 

SYSTEMS (OPERATIONS) LIMITED 

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 

BAE SYSTEMS (OPERATIONS) 

LIMITED Model BAe 146 series 

airplanes and Model Avro 146–RJ series 

airplanes. This proposed AD was 

prompted by hydraulic pipe ruptures in 

the center of the cabin resulting in 

passengers being contaminated with 

hydraulic fluid. This proposed AD 

would require installing a hydraulic 

fluid containment system. We are 

proposing this AD to prevent harmful or 

hazardous concentrations of hydraulic 

fluid or hydraulic vapor from entering 

the passenger compartment, possibly 

resulting in injury to the passengers. 

DATES: We must receive comments on 

this proposed AD by August 6, 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, 

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: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, 


TKELLEY on DSK3SPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 120 / Thursday, June 21, 2012 / Proposed Rules 37341 

Washington 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–2012–0642; Directorate Identifier 

2011–NM–262–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. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2011–0220, 

dated November 11, 2011 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

Cases of hydraulic pipe ruptures in the 

centre of the cabin of BAe 146 aeroplanes 

have been reported, which have resulted in 

the passengers being contaminated with 

hydraulic fluid. The results of the 

investigations have shown that the pipe 

failures were caused by a combination of 

seam welded pipes, bends in the pipe runs 

with small bend radii and fatigue damage 

due to pressure variations. 

This condition, if not corrected, could lead 

to harmful or hazardous concentrations of 

hydraulic fluid or hydraulic vapour entering 

the passenger compartment, possibly 

resulting in injury to the occupants. 

For the reasons described above, this 

[EASA] AD requires the installation of a 

flexible envelope around the hydraulic pipe 

group where the failures have occurred to 

capture and contain any fluid escaping from 

a burst pipe and channel it below floor level 

into the forward cargo bay. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

BAE SYSTEMS (OPERATIONS) 

LIMITED has issued Modification 

Service Bulletin SB.29–048–30676A, 

Revision 2, dated December 23, 2010. 

The actions described in this service 

information 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. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 1 product of U.S. registry. 

We also estimate that it would take 

about 8 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 $5,079 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 

$5,759. 

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: 

BAE SYSTEMS (OPERATIONS) LIMITED: 

Docket No. FAA–2012–0642; Directorate 

Identifier 2011–NM–262–AD. 

(a) Comments Due Date 

We must receive comments by August 6, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to BAE SYSTEMS 

(OPERATIONS) LIMITED Model BAe 146– 

100A, –200A, and –300A airplanes, and 

Model Avro 146–RJ70A, 146–RJ85A, and 

146–RJ100A airplanes; certificated in any 

category except for airplanes operating in a 

cargo configuration. The requirements of this 

AD become applicable at the time an airplane 

operating in a cargo configuration is 

converted to a passenger configuration. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 29, Hydraulic power. 


TKELLEY on DSK3SPTVN1PROD with PROPOSALS
37342 Federal Register / Vol. 77, No. 120 / Thursday, June 21, 2012 / Proposed Rules 

(e) Reason 

This AD was prompted by hydraulic pipe 

ruptures in the center of the cabin resulting 

in passengers being contaminated with 

hydraulic fluid. We are issuing this AD to 

prevent harmful or hazardous concentrations 

of hydraulic fluid or hydraulic vapor from 

entering the passenger compartment, 

possibly resulting in injury to the passengers. 

(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) Actions 

Within 4,000 flight hours or 24 months 

after the effective date of this AD, whichever 

occurs first, install the hydraulic fluid 

containment system, in accordance with the 

Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.29–048– 

30676A, Revision 2, dated December 23, 

2010. 

(h) Credit for Previous Actions 

This paragraph provides credit for the 

actions required by paragraph (g) of this AD, 

if those actions were performed before the 

effective date of this AD, using the service 

bulletin specified in paragraph (h)(1) or (h)(2) 

of this AD. 

(1) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.29–048–30676A, dated October 18, 2010. 

(2) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.29–048–30676A, Revision 1, dated 

November 5, 2010. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, 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 International Branch, send it to ATTN: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

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

227–1149. Information may be emailed to: 

9-ANM-116-AMOC-REQUESTS@faa.gov. 

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 European Aviation 

Safety Agency (EASA) Airworthiness 

Directive 2011–0220, dated November 11, 

2011; and BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.29–048–30676A, Revision 2, dated 

December 23, 2010; for related information. 

(2) For service information identified in 

this 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, Washington. 

For information on the availability of this 

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

Issued in Renton, Washington, on June 12, 

2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–15168 Filed 6–20–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0641; Directorate 

Identifier 2011–NM–258–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 CL–600–2A12 

(CL–601) and CL–600–2B16 (CL–601– 

3A, CL–601–3R, and CL–604 Variants) 

airplanes. This proposed AD was 

prompted by reports of jamming/ 

malfunctioning of the left-hand engine 

thrust control mechanism. This 

proposed AD would require modifying 

the left-hand engine upper core-cowl. 

We are proposing this AD to prevent 

jamming/malfunctioning of the lefthand engine thrust control mechanism, 

which could lead to loss of control of 

the airplane. 

DATES: We must receive comments on 

this proposed AD by August 6, 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 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, 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: 

Mazdak Hobbi, Aerospace Engineer, 

Propulsion and Services Branch, ANE– 

173, FAA, New York Aircraft 

Certification Office, 1600 Stewart 

Avenue, Westbury, NY 11590; 

telephone (516) 228–7330; 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–2012–0641; Directorate Identifier 

2011–NM–258–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 


TKELLEY on DSK3SPTVN1PROD with PROPOSALS