Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 65941 

required by this AD, unless the AD specifies 

otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this AD, contact Airbus SAS–EAW 

(Airworthiness Office), 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

telephone: +33 5 61 93 36 96; fax: +33 5 61 

93 44 51; e-mail: account.airwortheas@airbus.com; Internet: http:// 

www.airbus.com. 

(3) You may review copies of the 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. 

(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 NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal_register/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on October 

13, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27393 Filed 10–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0993; Directorate 

Identifier 2010–NE–08–AD; Amendment 39– 

16849; AD 2011–22–07] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc RB211–524 Series, RB211–Trent 

700 Series, and RB211–Trent 800 

Series Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD results 

from mandatory continuing 

airworthiness information (MCAI) 

issued by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

Cracking has been found on the inner wall 

between intermediate dilution chutes on a 

total of five front combustion liners of the 

standard corresponding to Rolls-Royce 

RB211 Service Bulletin No. 72–D133. The 

lives of two of these liners were confirmed 

to be below the currently valid borescope 

inspection interval. Ultimately, crack 

propagation could result in hot gas breakout 

with potential of downstream component 

distress and multiple turbine blade release 

beyond containment capabilities of the 

engine casings. Thus, cracking of this nature 

constitutes a potentially unsafe condition. 

Since Rolls-Royce Service Bulletin No. 72– 

E902 introduces further developments of 

Rolls-Royce RB211 Service Bulletin No. 72– 

D133, engines incorporating Rolls-Royce 

RB211 Service Bulletin No. 72–E902 are also 

considered to be potentially affected and are 

therefore included in the applicability of this 

AD. 

We are issuing this AD to detect cracks 

in the front combustion liner, which 

could result in hot section distress, 

multiple blade release, and possible 

damage to the airplane. 

DATES: This AD becomes effective 

November 29, 2011. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD as of 

November 29, 2011. 

ADDRESSES: The Docket Operations 

office is located at Docket Management 

Facility, U.S. Department of 

Transportation, 1200 New Jersey 

Avenue, SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590–0001. 

FOR FURTHER INFORMATION CONTACT: 

Alan Strom, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: alan.strom@faa.gov; phone: 781– 

238–7143; fax: 781–238–7199. 

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 October 5, 2010 (75 FR 

61363). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states that: 

Cracking has been found on the inner wall 

between intermediate dilution chutes on a 

total of five front combustion liners of the 

standard corresponding to Rolls-Royce 

RB211 Service Bulletin No. 72–D133. The 

lives of two of these liners were confirmed 

to be below the currently valid borescope 

inspection interval. Ultimately, crack 

propagation could result in hot gas breakout 

with potential of downstream component 

distress and multiple turbine blade release 

beyond containment capabilities of the 

engine casings. Thus, cracking of this nature 

constitutes a potentially unsafe condition. 

Since Rolls-Royce Service Bulletin No. 72– 

E902 introduces further developments of 

Rolls-Royce RB211 Service Bulletin No. 72– 

D133, engines incorporating Rolls-Royce 

RB211 Service Bulletin No. 72–E902 are also 

considered to be potentially affected and are 

therefore included in the applicability of this 

AD. 

This AD requires a change to the initial 

and repeat borescope inspection intervals for 

the front combustion liner. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request To Expand Address for Service 

Information 

One commenter, Rolls-Royce plc (RR), 

asked us to consider changing the 

information for getting the service 

information to ‘‘For any questions 

concerning the technical content of the 

requirements in this AD (NPRM), please 

contact your designated Rolls-Royce 

representative for a copy of the service 

information, please download the 

publication from your Aeromanager 

account at http:// 

www.aeromanager.com. If you do not 

have a designated representative or an 

Aeromanager account, please contact 

Corporate Communications at RollsRoyce plc, PO Box 31, Derby, DE24 8BJ, 

United Kingdom, phone: 011–44–1331– 

242424, fax: 011–44–1332–249936, or 

e-mail: http://www.rolls-royce.com/ 

contact/civil_team.jsp identifying the 

correspondence as being related to 

Airworthiness Directives.’’ RR states 

that this should make sure that any 

questions from operators of their 

engines and those from other parties are 

directed to the area best equipped to 

answer. 

We partially agree. We agree that 

operators and maintenance providers 

need to get timely and accurate service 

information, and that additional 

information is worth including. We 

changed paragraph (k) of the AD to state 

‘‘* * * contact Corporate 

Communications at Rolls-Royce plc PO 

Box 31, Derby, DE24 8BJ, United 

Kingdom, Phone: 011–44–1331–242424, 

fax 011–44–1332–249936 or e-mail from 

http://www.rolls-royce.com/contact/ 

civil_team.jsp identifying the 

correspondence as being related to 

Airworthiness Directives.’’ 

We do not agree that operators or 

maintenance providers should contact 

RR for questions about this AD. We did 

not include that information in the AD. 

Requests To Change References to the 

Service Bulletin That Is Incorporated 

by Reference 

Two commenters, American Airlines 

(AA) and The Boeing Company 

(Boeing), asked us to add ‘‘or later 


erowe on DSK2VPTVN1PROD with RULES
65942 Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 

revision’’ after ‘‘Service Bulletin No. 

RB.211–72–AF458, Revision 2, dated 

December 21, 2007.’’ Boeing stated the 

latest revision of Service Bulletin (SB) 

No. RB.211–72–AF458 is Revision 4. 

Boeing stated that airlines have been 

inspecting their combustion liners to 

Revision 4 of the SB and the compliance 

intervals specified in the NPRM are 

consistent with RR SB RB.211–72– 

AF458, Revision 4 and EASA AD 2009– 

0243R1. AA stated the borescope 

inspection is the same on later 

revisions, so the life should be counted 

from the latest SB revision. 

We do not agree. On review of the SB, 

we determined that the inspection 

requirements and limits called out in 

the SB are already in the engine and 

aircraft maintenance manuals. We 

changed the AD to remove the 

incorporation by reference of the SB. 

One commenter, AA, asked us to 

revise paragraph (f) of the AD to 

specifically call out which paragraphs of 

SB RB.211–72–AF458 are incorporated 

by reference. AA stated the NPRM 

called out all of section 3 of the SB, 

which is too prescriptive given the 

nature of the inspections. 

We do not agree. On review of the SB, 

we found incorporation by reference 

unnecessary. We changed the AD to 

remove the incorporation by reference 

of the SB. 

Request To Remove an Engine Model 

From the Applicability 

One commenter, AA, asked us to 

remove the RR RB211–535 engine 

model from the applicability of the 

proposed AD. AA stated they have 

recorded no crack findings against the 

RB211–535 model. 

We agree. The thermal, acoustical, 

and vibratory stress environment of the 

RB211–535 combustion liner is different 

from that of the other engines to which 

this AD applies. We removed the 

RB211–535E4–37, RB211–535E4–B–37, 

RB211–535E4–C–37, and RB211– 

535E4–B–75 from the Applicability 

paragraph (c) of this AD, and updated 

our cost estimate to reflect the fewer 

affected engines. 

Request To Change the Number of 

Cracking Events 

One commenter, Boeing, asked us to 

change paragraph (d) of the proposed 

AD to specify that six cracking events 

have been found instead of five. Boeing 

states that changing paragraph (d) of the 

proposed AD will more accurately 

reflect the need for the inspections. 

We agree. Although an additional 

cracking event has occurred, the AD was 

prompted by the investigation of five 

events. We changed paragraph (d) of 

this AD to reflect six known cracking 

events. 

Request To Add a Grace Period for 

Compliance 

One commenter, Boeing asked us to 

change paragraphs (f)(1)(i) and (f)(1)(iii) 

of the proposed AD to add ‘‘within 15 

cycles of the date of issue of the AD’’ 

before the word ‘‘or.’’ Boeing states that 

adding the 15 cycle grace period will 

give operators time to get back to base 

for the inspection. 

We partially agree. No additional 

grace period is required. This AD does 

not require inspecting any engine earlier 

than 250 cycles after the effective date 

of the AD. We clarified the wording of 

paragraph (f) to make this clearer. 

Statement of the Possibility of Cost and 

Operational Impact Increasing 

One commenter, Federal Express, 

stated that cost and operational impact 

could increase if certain RB211–535 

models are added to the applicability of 

the proposed AD. The commenter 

provided no reason for its statement. 

We agree. However, additional engine 

models are not being added, and we are 

specifically excluding the RB211–535 

engine in response to another comment. 

We did not change the AD in response 

to this comment. 

Conclusion 

We reviewed the available data, 

including the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We determined that these changes will 

not increase the economic burden on 

any operator or increase the scope of 

the AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this AD will affect about 

46 products of U.S. registry. We also 

estimate that it will take about 1.5 workhours per product to comply with this 

AD. The average labor rate is $85 per 

work-hour. No parts are required so 

parts will cost $0 per product. Based on 

these figures, we estimate the cost of the 

AD on U.S. operators to be $5,865. 

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 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 this AD, the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (phone: 

(800) 647–5527) is provided 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: 


erowe on DSK2VPTVN1PROD with RULES
Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 65943 

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: 

2011–22–07 Rolls-Royce: Amendment 39– 

16849. Docket No. FAA–2010–0993; 

Directorate Identifier 2010–NE–08–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective November 29, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Rolls-Royce (RR) 

turbofan engine models RB211–524G2–T–19, 

RB211–524G3–T–19, RB211–524H2–T–19, 

RB211–524H–T–36, RB211–Trent 768–60, 

RB211–Trent 772–60, RB211–Trent 772B–60, 

RB211–Trent 875–17, RB211–Trent 877–17, 

RB211–Trent 884–17, RB211–Trent 884B–17, 

RB211–Trent 892–17, RB211–Trent 892B–17 

and RB211–Trent 895–17 that incorporate RR 

Service Bulletin (SB) RB.211–72–D133 or 

RB.211–72–E902. These engines are installed 

on, but not limited to, Airbus A330 series 

airplanes; Boeing 747–400 series, 767 series, 

and 777 series airplanes. 

Reason 

(d) This AD results from: 

Cracking has been found on the inner wall 

between intermediate dilution chutes on a 

total of five front combustion liners of the 

standard corresponding to Rolls-Royce 

RB211 Service Bulletin No. 72–D133. The 

lives of two of these liners were confirmed 

to be below the currently valid borescope 

inspection interval. Ultimately, crack 

propagation could result in hot gas breakout 

with potential of downstream component 

distress and multiple turbine blade release 

beyond containment capabilities of the 

engine casings. Thus, cracking of this nature 

constitutes a potentially unsafe condition. 

Since Rolls-Royce Service Bulletin No. 72– 

E902 introduces further developments of 

Rolls-Royce RB211 Service Bulletin No. 72– 

D133, engines incorporating Rolls-Royce 

RB211 Service Bulletin No. 72–E902 are also 

considered to be potentially affected and are 

therefore included in the applicability of this 

AD. 

Since EASA issued its AD, another 

cracking event has occurred, bringing to six 

the total of crack events of which we are 

aware. We are issuing this AD to detect 

cracks in the front combustion liner, which 

could result in hot section distress, multiple 

blade release, and possible damage to the 

airplane. 

Actions and Compliance 

(e) Unless already done, do the following 

actions. 

Initial Inspection 

(f) Perform a borescope inspection of the 

front combustion liner inner wall, before 

accumulating the cyclic limits specified in 

paragraphs (f)(2) and (f)(3) of this AD. 

(1) If you incorporated paragraph 3.A.(2)(a) 

of RR Alert Service Bulletin (ASB) RB.211– 

72–AF458, Revision 4, dated March 9, 2009, 

or ASB RB.211–72–AF458, Revision 5, dated 

April 20, 2011, you have satisfied the 

requirements of paragraph (f) of this AD. 

(2) If the engine has a combustion liner 

installed with: 

(i) A LIFE on the effective date of this AD, 

that is equal to or greater than the initial 

inspection threshold specified in column (b) 

of Table 1 of this AD or a LIFE on the 

effective date of this AD, that is not known, 

within 250 cycles after the effective date of 

this AD, perform a borescope inspection as 

specified in paragraph (f) of this AD. 

(ii) A LIFE on the effective date of this AD, 

that is less than the initial inspection 

threshold specified in column (b) of Table 1 

of this AD, perform the borescope inspection 

before the LIFE exceeds the limit specified in 

column (c) of Table 1 of this AD. 

Repeat Inspection 

(3) Thereafter, repeat the borescope 

inspection specified in paragraph (f) of this 

AD at intervals not to exceed the cycles 

specified in column (d) of Table 1 of this AD. 

TABLE 1—INITIAL INSPECTION THRESHOLDS AND LIMITS

Column (a) Column (b) Column (c) Column (d) 

Engine model Initial inspectionthreshold 

Initial inspection limit 

if LIFE is less than 

the initial inspection 

threshold 

Repeat inspection 

interval 

(i) RB211–524G2–T–19, 524G3–T–19 and 524H2–T–19 ......... 1,150 cycles ............................. 1,400 cycles .............. 1,400 cycles. 

(ii) RB211–524H–T–36 ............................................................... 550 cycles ................................ 800 cycles ................. 800 cycles. 

(iii) RB211–Trent 768–60, 772–60 and 772B–60 ...................... 1,250 cycles ............................. 1,500 cycles .............. 1,500 cycles. 

(iv) RB211–Trent 892–17, RB211–Trent 884–17, RB211–Trent 

884B–17, RB211–Trent 877–17, RB211–Trent 875–17, 

RB211–Trent 892B–17 and RB211–Trent 895–17 engines.

750 cycles ................................ 1,000 cycles .............. 1,000 cycles. 

Definitions 

(g) This AD defines LIFE as the lowest of: 

(1) The number of cycles-since-new of the 

combustion liner, or 

(2) The number of cycles-in-service (CIS) 

since replacement of the inner wall, or 

(3) The number of CIS since the inner wall 

of the combustion liner was last borescopeinspected, or inspected by performing 

paragraph 3.A.(2)(a) of RR ASB RB.211–72– 

AF458, Revision 4, dated March 9, 2009 or 

ASB RB.211–72–AF458, Revision 5, dated 

April 20, 2011. 

FAA AD Differences 

(h) This AD differs from the Mandatory 

Continuing Airworthiness Information 

(MCAI) in that the MCAI AD applies to the 

RB211–Trent 772C–60 engine, which is not 

type certificated in the United States. The 

MCAI also allows use of later revisions of the 

SBs. This AD does not. 

Other FAA AD Provisions 

(i) Alternative Methods of Compliance 

(AMOCs): The Manager, Engine Certification 

Office, FAA, has the authority to approve 

AMOCs for this AD if requested using the 

procedures found in 14 CFR 39.19. 

Related Information 

(j) Refer to MCAI European Aviation Safety 

Agency Airworthiness Directive 2009– 

0243R2, Corrected, dated February 22, 2011, 

for related information. 

(k) Rolls-Royce ASB RB.211–72–AF458, 

Revision 4, dated March 9, 2009, or ASB 

RB.211–72–AF458, Revision 5, dated April 

20, 2011, provide information on how to do 

the actions required by this AD. For service 

information identified in this AD, contact 

Corporate Communications at Rolls-Royce 

plc, PO Box 31, Derby, DE24 8BJ, United 

Kingdom, phone: 011–44–1331–242424, fax: 

011–44–1332–249936, or e-mail: http:// 

www.rolls-royce.com/contact/civil_team.jsp 

identifying the correspondence as related to 

airworthiness directives. 

(l) Contact Alan Strom, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: alan.strom@faa.gov; phone: 

781–238–7143; fax: 781–238–7199, for more 

information about this AD. 

Material Incorporated by Reference 

(m) None. 


erowe on DSK2VPTVN1PROD with RULES
65944 Federal Register / Vol. 76, No. 206 / Tuesday, October 25, 2011 / Rules and Regulations 

Issued in Burlington, Massachusetts, on 

October 18, 2011. 

Peter A. White, 

Manager, Engine and Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27513 Filed 10–24–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–0757; Airspace 

Docket No. 11–AAL–10] 

Establishment of Class E Airspace; 

Tatitlek, AK 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action establishes Class 

E airspace at Tatitlek, AK, to 

accommodate the creation of one 

standard instrument approach 

procedure at the Tatitlek Airport. The 

FAA is taking this action to enhance 

safety and management of Instrument 

Flight Rules (IFR) operations at the 

Tatitlek Airport. 

DATES: Effective 0901 UTC, December 

15, 2011. The Director of the Federal 

Register approves this incorporation by 

reference action under title 1, Code of 

Federal Regulations, part 51, subject to 

the annual revision of FAA Order 

7400.9 and publication of conforming 

amendments. 

FOR FURTHER INFORMATION CONTACT: 

Martha Dunn, AAL–538G, Federal 

Aviation Administration, 222 West 7th 

Avenue, Box 14, Anchorage, AK 99513– 

7587; telephone number (907) 271– 

5898; fax: (907) 271–2850; e-mail: 

Martha.ctr.Dunn@faa.gov. Internet 

address: http://www.faa.gov/about/ 

office_org/headquarters_offices/ato/ 

service_units/systemops/fs/alaskan/ 

rulemaking/. 

SUPPLEMENTARY INFORMATION: 

History 

On Wednesday, August 10, 2011, the 

FAA published a notice of proposed 

rulemaking (NPRM) in the Federal 

Register to establish Class E airspace at 

Tatitlek, AK (76 FR 49388). 

Interested parties were invited to 

participate in this rulemaking 

proceeding by submitting written 

comments on the proposal to the FAA. 

A comment was received that the 

coordinates for the Tatitlek Airport were 

incorrect. That error is corrected in this 

action. 

The Class E airspace areas are 

published in paragraphs 6002 and 6005, 

respectively, of FAA Order 7400.9V, 

Airspace Designations and Reporting 

Points, signed September 9, 2011, and 

effective September 15, 2011, which is 

incorporated by reference in 14 CFR 

71.1. The Class E airspace designations 

listed in this document will be 

published subsequently in the Order. 

With the exception of editorial changes, 

and the changes described above, this 

rule is the same as that proposed in the 

NPRM. 

The Rule 

This action amends Title 14 Code of 

Federal Regulations (14 CFR) part 71 by 

establishing Class E airspace at the 

Tatitlek Airport, Tatitlek, AK, to 

accommodate the creation of a standard 

instrument approach procedure. The 

Class E airspace provides adequate 

controlled airspace extending upward 

from 700 and 1,200 feet above the 

surface that is necessary for the safety 

and management of IFR operations at 

the airport. 

The FAA has determined that this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. It, therefore—(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. Because this is a 

routine matter that will only affect air 

traffic procedures and air navigation, it 

is certified that this rule 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 United States Code. 

Subtitle 1, Section 106 describes 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 1, Section 

40103, Sovereignty and use of airspace. 

Under that section, the FAA is charged 

with prescribing regulations to ensure 

the safe and efficient use of the 

navigable airspace. This regulation is 

within the scope of that authority 

because it establishes Class E airspace 

sufficient in size to contain aircraft 

executing the instrument procedure at 

the Tatitlek Airport and represents the 

FAA’s continuing effort to safely and 

efficiently use the navigable airspace. 

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 Federal Aviation 

Administration Order 7400.9V, 

Airspace Designations and Reporting 

Points, signed September 9, 2011, and 

effective September 15, 2011, is 

amended as follows: 

Paragraph 6005 Class E airspace extending 

upward from 700 feet or more above the 

surface of the earth. 

* * * * * 

AAL AK E5 Tatitlek, AK [Added] 

Tatitlek Airport, AK 

(Lat. 60°52′21′′ N., long. 146°41′28′′ W.) 

That airspace extending upward from 700 

feet above the surface within a 6.4-mile 

radius of the Tatitlek Airport, AK and within 

2 miles southwest and 3.4 miles northeast of 

the 149° radial from the Tatitlek Airport, AK 

extending from the 6.4-mile radius to 11.8 

miles southeast of the Tatitlek Airport, AK 

and that airspace extending upward from 

1,200 feet above the surface within a 60-mile 

radius of the Tatitlek Airport, AK. 

Issued in Anchorage, AK, on October 14, 

2011. 

Marshall G. Severson, 

Acting Manager, Alaska Flight Services. 

[FR Doc. 2011–27368 Filed 10–24–11; 8:45 am] 

BILLING CODE 4910–13–P 


erowe on DSK2VPTVN1PROD with RULES