This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents. Prices of

new books are listed in the first FEDERAL

REGISTER issue of each week.

Rules and Regulations Federal Register

9837 

Vol. 77, No. 34 

Tuesday, February 21, 2012 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0533; Directorate 

Identifier 2011–NE–16–AD; Amendment 39– 

16948; AD 2012–03–07] 

RIN 2120–AA64 

Airworthiness Directives; Lycoming 

Engines Reciprocating Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Lycoming Engines reciprocating 

engines. This AD was prompted by a 

report of a ‘‘machined-from-billet’’ HA– 

6 carburetor having a loose mixture 

control sleeve that rotated in the 

carburetor body causing restriction of 

fuel and power loss. This AD requires 

removing certain ‘‘machined-frombillet’’ Volare LLC (formerly Precision 

Airmotive Corporation, formerly Facet 

Aerospace Products Company, formerly 

Marvel-Schebler (BorgWarner)) HA–6 

carburetors, inspecting for a loose 

mixture control sleeve or for a sleeve 

that may become loose, repairing the 

carburetor, or replacing the carburetor 

with one eligible for installation. We are 

issuing this AD to prevent engine inflight shutdown, power loss, and 

reduced control of the airplane. 

DATES: This AD is effective March 27, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of March 27, 2012. 

ADDRESSES: For service information 

identified in this AD, contact MarvelSchebler Aircraft Carburetors LLC, 125 

Piedmont Avenue, Gibsonville NC 

27249; phone: 336–446–0002; fax: 336– 

446–0007; email: 

customerservice@msacarbs.com; Web 

site: www.msacarbs.com. You may 

review copies of the referenced service 

information at the FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA. For 

information on the availability of this 

material at the FAA, call 781–238–7125. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility between 

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

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Document Management Facility, 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: 

Kevin Brane, Aerospace Engineer, 

Propulsion, Atlanta Aircraft 

Certification Office, FAA, Small 

Airplane Directorate; 1701 Columbia 

Avenue, College Park, Georgia 30337; 

phone: 404–474–5582; fax: 404–474– 

5606; email: kevin.brane@faa.gov. 

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 published in the Federal 

Register on September 1, 2011 (76 FR 

54397). That NPRM proposed to require 

removing certain ‘‘machined-frombillet’’ Volare LLC (formerly Precision 

Airmotive Corporation, formerly Facet 

Aerospace Products Company, formerly 

Marvel-Schebler (BorgWarner)) HA–6 

carburetors, inspecting for a loose 

mixture control sleeve or for a sleeve 

that may become loose, repairing the 

carburetor, or replacing the carburetor 

with one eligible for installation. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comment 

received on the proposal and the FAA’s 

response. 

Request To Incorporate All Affected 

Engine Models 

One commenter, a private citizen, 

requested that we incorporate all 

affected engine models with HA–6 

model carburetors installed in the AD. 

The commenter provided a list, which 

he compiled from reviewing all 

applicable published Type Certificate 

Data Sheets (TCDS). 

We partially agree. We agree that 

some additional models are affected 

because the list provided by the 

commenter is mostly consistent with the 

applicable TCDS. We do not agree with 

the commenter on some of the models 

he thinks are affected, because we could 

not confirm they are affected, based on 

the TCDS. However, we determined that 

we need to change the applicability 

from a table of specific engine models, 

to all Lycoming Engines reciprocating 

engines with carburetor part numbers 

listed in Table 1 of the AD. We changed 

the AD applicability to all Lycoming 

Engines reciprocating engines with 

carburetor part numbers listed in Table 

1 of the AD. 

Change to the Alternative Methods of 

Compliance (AMOC) Paragraph 

Since we issued the proposed AD, we 

found that we referenced the wrong 

office in the AMOC paragraph. We 

changed that sentence to state that the 

Manager, Atlanta Aircraft Certification 

Office, FAA, may approve AMOCs for 

this AD. 

Change to Service Information 

Marvel-Schebler Aircraft Carburetors 

LLC has revised their Marvel-Schebler 

Emergency Service Bulletin (SB) No. 

SB–18, dated October 14, 2010, to 

Revision A, dated March 15, 2011. We 

reviewed Revision A, and determined 

that it also is acceptable. We changed 

the incorporated by reference paragraph 

k of the AD to include the original issue 

and Revision A. 

Conclusion 

We reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We also determined that these changes 

will not increase the economic burden 

on any operator or increase the scope of 

the AD. 

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9838 Federal Register / Vol. 77, No. 34 / Tuesday, February 21, 2012 / Rules and Regulations 

Costs of Compliance 

We estimate that this AD affects 

10,700 engines installed on aircraft of 

U.S. registry. We also estimate that it 

will take about 0.5 work-hours per 

aircraft to perform the inspection, and 

that about 409 carburetors will need 

repair. Approximately 2 work-hours per 

carburetor are required to repair the 

carburetor. The average labor rate is $85 

per work-hour. Required parts will cost 

about $600 per carburetor. Based on 

these figures, we estimate the cost of the 

AD on U.S. operators to be $769,680. 

Our estimate is exclusive of possible 

warranty coverage. 

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 

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, 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. 

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): 

2012–03–07 Lycoming Engines (formerly 

Textron Lycoming Division, AVCO 

Corporation): Amendment 39–16948; 

Docket No. FAA–2011–0533; Directorate 

Identifier 2011–NE–16–AD. 

(a) Effective Date 

This AD is effective March 27, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Lycoming Engines 

reciprocating engines with carburetor part 

numbers listed in Table 1 of this AD. 

TABLE 1—PART NUMBERS (INCLUDING ALL DASH NUMBERS) OF KNOWN AFFECTED HA–6 MODEL CARBURETORS

10–5219–XX 10–5224–XX 10–5230–XX 10–5235–XX 10–5253–XX 

10–5255–XX 10–5283–XX 10–6001–XX 10–6019–XX 10–6030–XX 

(d) Unsafe Condition 

This AD was prompted by a report of a 

‘‘machined-from-billet’’ HA–6 carburetor 

having a loose mixture control sleeve that 

rotated in the carburetor body causing 

restriction of fuel and power loss. We are 

issuing this AD to prevent engine in-flight 

shutdown, power loss, and reduced control 

of the airplane. 

(e) Compliance 

Comply with this AD within 50 flight 

hours after the effective date of this AD, 

unless already done. 

(f) Inspection 

Inspect the carburetor to determine the 

type of body the carburetor has. Use MarvelSchebler Emergency Service Bulletin (SB) 

No. SB–18, dated October 14, 2010, or 

Revision A, dated March 15, 2011, Figure (3) 

to determine which type of body is used. 

(g) If the carburetor has a die-cast body, no 

further action is required. 

(h) If the carburetor has an affected 

‘‘machined-from-billet’’ body, remove the 

carburetor; and replace the carburetor with: 

(1) An HA–6 carburetor not listed in Table 

1 of this AD; or 

(2) An HA–6 carburetor that is listed in 

Table 1 but is exempted as described in 

paragraphs 1.A. and 1.B of Marvel-Schebler 

Emergency SB No. SB–18, dated October 14, 

2010 or Revision A, dated March 15, 2011; 

or that has already been repaired using that 

Emergency SB. 

(i) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Atlanta Aircraft Certification 

Office, FAA, may approve AMOCs for this 

AD. Use the procedures found in 14 CFR 

39.19 to make your request. 

(j) Related Information 

For more information about this AD, 

contact Kevin Brane, Aerospace Engineer, 

Propulsion, Atlanta Aircraft Certification 

Office, FAA, Small Airplane Directorate; 

1701 Columbia Avenue, College Park, 

Georgia 30337; phone: (404) 474–5582; fax: 

(404) 474–5606; email: kevin.brane@faa.gov. 

(k) Material Incorporated by Reference 

(1) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. The 

Director of the Federal Register approved the 

incorporation by reference (IBR) under 

5 U.S.C. 552(a) and 1 CFR part 51 of the 

following service information: 

(i) Marvel-Schebler Emergency Service 

Bulletin No. SB–18, dated October 14, 2010. 

(ii) Marvel-Schebler Emergency Service 

Bulletin No. SB–18, Revision A, dated March 

15, 2011. 

(2) For service information identified in 

this AD, contact Marvel-Schebler Aircraft 

Carburetors LLC, 125 Piedmont Avenue, 

Gibsonville, NC 27249; phone: 336–446– 

0002; fax: 336–446–0007; email: 

customerservice@msacarbs.com; Web site: 

www.msacarbs.com. 

(3) You may review copies of the service 

information at the FAA, Engine & Propeller 

Directorate, 12 New England Executive Park, 

Burlington, MA. For information on the 

availability of this material at the FAA, call 

781–238–7125. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call 202–741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

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Federal Register / Vol. 77, No. 34 / Tuesday, February 21, 2012 / Rules and Regulations 9839 

Issued in Burlington, Massachusetts, on 

February 1, 2012. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–3862 Filed 2–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–0783; Airspace 

Docket No. 11–ANM–16] 

Amendment of Class D and Class E 

Airspace, and Establishment of Class 

E Airspace; Bozeman, MT 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action modifies Class D 

and Class E airspace at Bozeman, 

Gallatin Field Airport, Bozeman, MT, to 

accommodate aircraft using Instrument 

Landing System (ILS) Localizer (LOC) 

standard instrument approach 

procedures at Bozeman, Gallatin Field 

Airport. This action also establishes 

Class E En Route Domestic airspace to 

facilitate vectoring of Instrument Flight 

Rules (IFR) operations at the airport. 

This action, initiated by the biennial 

review of the Bozeman airspace area, 

enhances the safety and management of 

aircraft operations at the airport. 

DATES: Effective date, 0901 UTC, May 

31, 2012. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.9 and publication of 

conforming amendments. 

FOR FURTHER INFORMATION CONTACT: 

Eldon Taylor, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue SW., Renton, WA 98057; 

telephone (425) 203–4537. 

SUPPLEMENTARY INFORMATION: 

History 

On November 16, 2011, the FAA 

published in the Federal Register a 

notice of proposed rulemaking to amend 

and establish controlled airspace at 

Bozeman, MT (76 FR 70919). Interested 

parties were invited to participate in 

this rulemaking effort by submitting 

written comments on the proposal to the 

FAA. No comments were received. 

Class D and Class E airspace 

designations are published in paragraph 

5000, 6005 and 6006, respectively, of 

FAA Order 7400.9V dated August 9, 

2011, and effective September 15, 2011, 

which is incorporated by reference in 14 

CFR 71.1. The Class D and Class E 

airspace designations listed in this 

document will be published 

subsequently in that Order. 

The Rule 

This action amends Title 14 Code of 

Federal Regulations (14 CFR) part 71 by 

modifying Class D airspace, and Class E 

airspace extending upward from 700 

feet above the surface at Bozeman, 

Gallatin Field Airport, Bozeman, MT. 

Additional controlled airspace is 

necessary to accommodate aircraft using 

the ILS LOC standard instrument 

approach procedures at the airport. 

Also, this action establishes Class E En 

Route Domestic airspace extending 

upward from 1,200 feet above the 

surface to allow vectoring IFR aircraft 

from En Route airspace to the airport. 

The FAA has determined this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. Therefore, this regulation: (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); and (3) 

does not warrant preparation of a 

regulatory evaluation as the anticipated 

impact is so minimal. Since this is a 

routine matter that will only affect air 

traffic procedures and air navigation, it 

is certified this rule, when promulgated, 

will not have a significant economic 

impact on a substantial number of small 

entities under the criteria of the 

Regulatory Flexibility Act. The FAA’s 

authority to issue rules regarding 

aviation safety is found in Title 49 of the 

U.S. Code. Subtitle 1, Section 106 

discusses the authority of the FAA 

Administrator. Subtitle VII, Aviation 

Programs, describes in more detail the 

scope of the agency’s authority. This 

rulemaking is promulgated under the 

authority described in Subtitle VII, Part 

A, Subpart I, Section 40103. Under that 

section, the FAA is charged with 

prescribing regulations to assign the use 

of airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it creates 

additional controlled airspace at 

Bozeman, Gallatin Field Airport, 

Bozeman, MT. 

List of Subjects in 14 CFR Part 71 

Airspace, Incorporation by reference, 

Navigation (air). 

Adoption of the Amendment 

In consideration of the foregoing, the 

Federal Aviation Administration 

amends 14 CFR part 71 as follows: 

PART 71—DESIGNATION OF CLASS A, 

B, C, D, AND E AIRSPACE AREAS; AIR 

TRAFFIC SERVICE ROUTES; AND 

REPORTING POINTS 

■ 1. The authority citation for 14 CFR 

part 71 continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40103, 40113, 

40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959– 

1963 Comp., p. 389. 

§ 71.1 [Amended] 

■ 2. The incorporation by reference in 

14 CFR 71.1 of the Federal Aviation 

Administration Order 7400.9V, Airspace 

Designations and Reporting Points, 

dated August 9, 2011, and effective 

September 15, 2011 is amended as 

follows: 

Paragraph 5000 Class D airspace. 

* * * * * 

ANM MT D Bozeman, MT [Modified] 

Bozeman, Gallatin Field Airport, MT 

(Lat. 45°46′39′′ N., long. 111°09′07′′ W.) 

That airspace extending upward from the 

surface to and including 7,000 feet MSL 

within a 5.4-mile radius of Bozeman, Gallatin 

Field Airport. This Class D airspace area is 

effective during the specific dates and times 

established in advance by a Notice to 

Airmen. The effective date and time will 

thereafter be continuously published in the 

Airport/Facility Directory. 

Paragraph 6005 Class E airspace areas 

extending upward from 700 feet or more 

above the surface of the earth. 

* * * * * 

ANM MT E5 Bozeman, MT [Modified] 

Bozeman, Gallatin Field Airport, MT 

(Lat. 45°46′39′′ N., long. 111°09′07′′ W.) 

That airspace extending upward from 700 

feet above the surface within a 13.5-mile 

radius of Bozeman, Gallatin Field Airport, 

and within 8 miles northeast and 13 miles 

southwest of the 316° bearing of the airport 

extending from the 13.5-mile radius to 24.4 

miles northwest of the airport. 

Paragraph 6006 En route domestic airspace 

areas. 

* * * * * 

ANM MT E6 Bozeman, MT [New] 

Bozeman, Gallatin Field Airport, MT 

(Lat. 45°46′39′′ N., long. 111°09′07′′ W.) 

That airspace extending upward from 

1,200 feet above the surface within a 50-mile 

radius of the Bozeman, Gallatin Field 

Airport; excluding existing lateral limits of 

controlled airspace 12,000 feet MSL and 

above. 

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