Federal Register / Vol. 76, No. 251 / Friday, December 30, 2011 / Rules and Regulations 82111 

products identified in this rulemaking 

action. 

Regulatory Findings 

We have 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 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 

removing airworthiness directive (AD) 

2010–06–12, Amendment 39–16236, (75 

FR 12439, March 16, 2010), and adding 

the following new AD: 

2010–06–12R1 Thielert Aircraft Engines 

GmbH: Amendment 39–16906 ; Docket 

No. FAA–2009–0948; Directorate 

Identifier 2009–NE–30–AD. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 3, 2012. 

(b) Affected ADs 

This AD revises AD 2010–06–12, 

Amendment 39–16236 (75 FR 12439, March 

16, 2010). 

(c) Applicability 

This AD applies to Thielert Aircraft 

Engines GmbH (TAE) models TAE 125–01 

and TAE 125–02–99 reciprocating engines. 

(d) Reason 

This AD was prompted by the 

determination that our AD was inadvertently 

more restrictive than European Aviation 

Safety Agency AD 2008–0128. We are issuing 

this AD to prevent engine in-flight shutdown, 

possibly resulting in reduced control of the 

aircraft. 

(e) Actions and Compliance 

Unless already done, do the following 

actions. 

(1) TAE 125–02–99 Reciprocating Engines 

(i) For TAE 125–02–99 reciprocating 

engines, within 100 flight hours after the 

effective date of this AD, replace the existing 

rail pressure control valve with a rail 

pressure control valve P/N 05–7320– 

E000702. Modify the Vrail plug by removing 

the two existing single wire sealings and 

installing three new single wire sealings, 

P/N AMP–828904–1. 

(ii) Guidance on the rail pressure control 

valve replacement and Vrail plug 

modification specified in paragraph (e)(1)(i) 

of this AD can be found in Thielert Repair 

Manual RM–02–02, Chapter 73–10.08, and 

Chapter 39–40.08, respectively. 

(2) TAE 125–01 Reciprocating Engines 

(i) For TAE 125–01 reciprocating engines, 

before 600 flight hours time-since-new, or 

within 100 flight hours after the effective 

date of this AD, whichever occurs later, 

replace the existing rail pressure control 

valve with a rail pressure control valve, P/N 

02–7320–04100R3. 

(ii) Guidance on the rail pressure control 

valve replacement specified in paragraph 

(e)(2)(i) of this AD can be found in Thielert 

Repair Manual RM–02–01, Chapter 29.0. 

(3) TAE 125–02–99 and TAE 125–01

Engines, Repetitive Replacements of Rail 

Pressure Control Valves 

Thereafter, for affected TAE 125–02–99 

and TAE 125–01 engines, replace the rail 

pressure control valve with the same P/N 

valve within every 600 flight hours. 

(f) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA, may approve AMOCs for this AD. Use 

the procedures found in 14 CFR 39.19 to 

make your request. 

(g) Related Information 

(1) For related information, refer to MCAI 

EASA AD 2008–0128, dated July 9, 2008, 

EASA AD 2008–0215, dated December 5, 

2008, Thielert Service Bulletin No. TAE 125– 

1008 P1, Revision 1, dated September 29, 

2008, and Thielert Repair Manual RM–02–02. 

For a copy of the service information 

referenced in this AD, contact Thielert 

Aircraft Engines GmbH, Platanenstrasse 14 

D–09350, Lichtenstein, Germany; phone: 

+49–37204–696–0; fax: +49–37204–696–55; 

email: info@centurion-engines.com. 

(2) For more information about this AD, 

contact Alan Strom, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: (781) 238–7143; fax: (781) 238–7199; 

email: alan.strom@faa.gov. 

(h) Material Incorporated by Reference 

None. 

Issued in Burlington, Massachusetts, on 

December 23, 2011. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–33514 Filed 12–29–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0996; Directorate 

Identifier 2011–NM–068–AD; Amendment 

39–16899; AD 2011–26–09] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all The 

Boeing Company Model 737–600, –700, 

–700C, –800, –900, and –900ER series 

airplanes. This AD was prompted by 

reports of excessive in-service wear 

damage of the thumbnail fairing edge 

seal, and of the panel rub strip and skin 

assembly of the fan cowl. This AD 

requires replacement of the thumbnail 

fairing edge seals on both sides of the 

engines with Nitronic 60 stainless steel 

alloy seals. We are issuing this AD to 

prevent failure of the fire seal, which 

could allow a fire in the fan 

compartment to spread beyond the 

firewall and reach the flammable fluid 

leakage zones, resulting in an 

uncontrolled fire. 

DATES: This AD is effective February 3, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of February 3, 2012. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone (206) 544–5000, 

extension 1; fax (206) 766–5680; email 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 


tkelley on DSK3SPTVN1PROD with RULES
82112 Federal Register / Vol. 76, No. 251 / Friday, December 30, 2011 / Rules and Regulations 

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 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: 

Chris Parker, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office 

(ACO), 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: (425) 

917–6496; fax: (425) 917–6590; email: 

chris.r.parker@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 was published in the Federal 

Register on October 5, 2011 (76 FR 

61643). That NPRM proposed to require 

replacement of the thumbnail fairing 

edge seals on both sides of the engines 

with Nitronic 60 stainless steel alloy 

seals. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

have considered the comment received. 

Boeing supports the NPRM (76 FR 

61643, October 5, 2011). 

Conclusion 

We reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Costs of Compliance 

We estimate that this AD affects 989 

airplanes of U.S. registry. We estimate 

the following costs to comply with this 

AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replace thumbnail faring edge seals ............. 6 work-hours × $85 per hour = $510 ............. $2,032 $2,542 $2,514,038 

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): 

2011–26–09: The Boeing Company: 

Amendment 39–16899; Docket No. 

FAA–2011–0996; Directorate Identifier 

2011–NM–068–AD. 

(a) Effective Date 

This AD is effective February 3, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–600, –700, –700C, –800, –900, 

and –900ER series airplanes, certificated in 

any category, as identified in Boeing Special 

Attention Service Bulletin 737–54–1046, 

dated February 16, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 54: Nacelles/Pylons. 

(e) Unsafe Condition 

This AD was prompted by reports of 

excessive in-service wear damage of the 

thumbnail fairing edge seal, and of the panel 

rub strip and skin assembly of the fan cowl. 

We are issuing this AD to prevent failure of 

the fire seal, which could allow a fire in the 

fan compartment to spread beyond the 

firewall and reach the flammable fluid 

leakage zones, resulting in an uncontrolled 

fire. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replace the Thumbnail Fairing Edge 

Seals 

Within 60 months after the effective date 

of this AD, replace the thumbnail fairing edge 

seals, on both the left side and the right side 

of engine 1 and engine 2, with new Nitronic 

60 stainless steel alloy seals, in accordance 


tkelley on DSK3SPTVN1PROD with RULES
Federal Register / Vol. 76, No. 251 / Friday, December 30, 2011 / Rules and Regulations 82113 

with the Accomplishment Instructions of 

Boeing Special Attention Service Bulletin 

737–54–1046, dated February 16, 2011. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office (ACO), 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 manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(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. 

(i) Related Information 

For more information about this AD, 

contact Chris Parker, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: (425) 917–6496; fax: (425) 917– 

6590; email: chris.r.parker@faa.gov. 

(j) 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 on the date 

specified: 

(i) Boeing Special Attention Service 

Bulletin 737–54–1046, dated February 16, 

2011. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P. O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

(206) 544–5000, extension 1; fax (206) 766– 

5680; email me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

(3) You may review copies of the service 

information at the FAA, Transport Airplane 

Directorate, FAA, 1601 Lind Avenue SW., 

Renton, Washington 98057–3356. 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 an NARA facility, 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 

December 13, 2011. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–32678 Filed 12–29–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–1023; Airspace 

Docket No. 11–AWP–15] 

Amendment of Class E Airspace; Show 

Low, AZ 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action modifies Class E 

airspace at Show Low Regional Airport, 

Show Low, AZ. Controlled airspace is 

necessary to accommodate aircraft using 

Area Navigation (RNAV) Global 

Positioning System (GPS) standard 

instrument approach procedures at 

Show Low Regional Airport. This 

improves the safety and management of 

Instrument Flight Rules (IFR) operations 

at the airport. 

DATES: Effective date, 0901 UTC, April 

5, 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 October 17, 2011, the FAA 

published in the Federal Register a 

notice of proposed rulemaking to amend 

controlled airspace at Show Low, AZ 

(76 FR 64041). 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 E airspace designations are 

published in paragraph 6005, 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 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 E airspace extending 

upward from 700 feet above the surface, 

at Show Low Regional Airport, to 

accommodate IFR aircraft executing 

RNAV (GPS) standard instrument 

approach procedures at the airport. This 

action is necessary for the safety and 

management of IFR operations. 

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 modifies 

controlled airspace at Show Low 

Regional Airport, Show Low, AZ. 

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 


tkelley on DSK3SPTVN1PROD with RULES