## 63064 Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations

AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80–0175, Rev. N. 1, dated May 14, 2010. Installing both the LH and the RH hose assembly P/N 80–337284–001 terminates the repetitive inspections required in paragraph (f)(1) of this AD.

(4) You may terminate the repetitive inspections required in paragraph (f)(1) of this AD by replacing both the LH and the RH hose assembly P/Ns 80–337276–001 with a new hose assembly P/N 80–337284–001 at any time after the initial inspection required in paragraph (f)(1) of this AD, as long as no wear damage to the fuel heater or to the oil cooling system hose is detected and sufficient clearance is found.

FAA AD Differences

Note: This AD differs from the MCAI and/ or service information as follows: No differences.

Other FAA AD Provisions

(g) The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: S.M. Nagarajan, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4145; fax: (816) 329– 4090. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO.

(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.

(3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq. ), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056.

Related Information

(h) Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2010–0125, dated June 23, 2010; and PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80–0175, Rev. N. 1, dated May 14, 2010, for related information.
Material Incorporated by Reference

(i) You must use PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N.: 80–0175, Rev. N. 1, dated May 14, 2010, to do the actions 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 Piaggio Aero Industries S.p.a., Via Cibrario, 4–16154 Genoa, Italy; phone: +39 010 6481 353; fax: +39 010 6481 881; e-mail: airworthiness@piaggioaero.it; Internet: http://www.piaggioaero.com.

(3) You may review copies of the service information incorporated by reference for this AD at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the Central Region, call (816) 329–3768.

(4) You may also review copies of the service information incorporated by reference for this AD 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 Kansas City, Missouri, on September 29, 2010. John Colomy, Acting Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2010–25215 Filed 10–13–10; 8:45 am]

**BILLING CODE 4910–13–P**



### DEPARTMENT OF TRANSPORTATION

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2010–0676; Directorate Identifier 2010–NM–095–AD; Amendment**  **39–16479; AD 2010–21–19]**

**RIN 2120–AA64**



### Airworthiness Directives; Learjet Inc. **Model 45 Airplanes**

**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 requires replacing aluminum fire extinguisher discharge tubes with new, improved tubes; checking the fire extinguisher container for certain serial numbers; replacing fire extinguisher containers that have affected serial numbers; inspecting the pressure indicator on certain fire extinguisher containers for discrepancies; and performing corrective action if necessary. This AD was prompted by a report of accidental discharge of a fire extinguisher container and damage to an aluminum discharge tube. Investigation revealed that following the discharge an inaccurate pressure indication, due to the indicator dial being incorrectly staked, showed that the container was fully charged. We are issuing this AD to prevent inaccurate pressure readings and subsequent damage to the discharge tubes during operation, which could result in failure of the fire extinguisher system and an uncontained fire in an emergency situation.

**DATES** 

### : This AD is effective November 18, 2010.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of November 18, 2010.

**ADDRESSES** 

### : For service information identified in this AD, contact Learjet, Inc., One Learjet Way, Wichita, Kansas 67209–2942; telephone 316–946–2000; fax 316–946–2220; e-mail ac.ict@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 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** 

### : James Galstad, Aerospace Engineer, Systems and Propulsion Branch, ACE– 116W, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946–4135; fax (316) 946–4107; e-mail james.galstad@faa.gov.

**SUPPLEMENTARY INFORMATION** 

### :
Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an airworthiness directive (AD) that would apply to the specified products. That NPRM was published in the Federal Register on July 7, 2010 (75 FR 38941). That NPRM proposed to require replacing aluminum fire extinguisher discharge tubes with new, improved tubes; checking the fire extinguisher container for certain serial numbers; replacing fire extinguisher containers that have affected serial


## 63065 Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations

numbers; inspecting the pressure indicator on certain fire extinguisher containers for discrepancies; and performing corrective action if
necessary.

Comments

We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM or on the determination of the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and the public interest require adopting the AD as proposed. Costs of Compliance

We estimate that this AD affects 322 airplanes of U.S. registry. We also estimate that it will take 5 work-hours per product to comply with this AD.The average labor rate is $85 per workhour. Required parts cost is minimal. Where the service information lists required parts costs that are covered under warranty, we have assumed that there will be no charge for these costs. 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 this AD to the U.S. operators to be $136,850, or $425 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

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):
2010–21–19 Learjet Inc: Amendment 39– 16479; Docket No. FAA–2010–0676; Directorate Identifier 2010–NM–095–AD.

Effective Date

(a) This AD is effective November 18, 2010.

Affected ADs

(b) None. Applicability (c) This AD applies to Learjet Inc. Model 45 airplanes, certificated in any category; as identified in Bombardier Service Bulletins 40–26–05 and 45–26–9, both Revision 2, both dated May 4, 2009.
Subject

(d) Air Transport Association (ATA) of America Code 26: Fire protection.

Unsafe Condition

(e) This AD results from a report of accidental discharge of a fire extinguisher container and damage to an aluminum discharge tube. Investigation revealed that following the discharge an inaccurate pressure indication, due to the indicator dial being incorrectly staked, showed that the container was fully charged. The Federal Aviation Administration is issuing this AD to prevent inaccurate pressure readings and subsequent damage to the discharge tubes during operation, which could result in failure of the fire extinguisher system and an uncontained fire in an emergency situation.
Compliance

(f) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Replacement, Check, Inspection, Corrective Action

(g) Within 12 months after the effective date of this AD: Replace the aluminum fire extinguisher discharge tubes with new, improved stainless steel tubes; check the fire extinguisher container for any serial number specified in Table 1 of Bombardier Service Bulletin 40–26–05 or 45–26–9, both Revision 2, both dated May 4, 2009, as applicable; replace any containers that have affected serial numbers, do a weight check of all containers, including the replacement container, if applicable; and inspect the pressure indicator on the containers for discrepancies; by doing all applicable actions in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 40–26–05 or 45–26–9, both Revision 2, both dated May 4, 2009; as applicable. If any discrepancy is found, replace the container before further flight in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 40–26–05 or 45–26–9, both Revision 2, both dated May 4, 2009; as applicable.

(h) Actions done before the effective date of this AD in accordance with the applicable service information listed in Table 1 of this AD are acceptable for compliance with the corresponding requirements in paragraph (g) of this AD.



### T ABLE 

### 1—C REDIT FOR 

### A CTIONS 

### A CCOMPLISHED IN 

### A CCORDANCE 

### W ITH 

### P REVIOUS 

### S ERVICE 

### I NFORMATION

Affected Serial Numbers— Bombardier Service Bulletin— Revision— Dated—

For Model 45 airplanes having serial numbers 2001 through 2114, inclusive 40–26–05 Basic Issue ................ November 24, 2008

. For Model 45 airplanes having serial numbers 2001 through 2114, inclusive 40–26–05 1 ................................ December 22, 2008. For Model 45 airplanes having serial numbers 006 through 383, inclusive ... 45–26–9 Basic Issue ................ November 24, 2008.


## 63066 Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations

TABLE 

### 1—C REDIT FOR 

### A CTIONS 

### A CCOMPLISHED IN 

### A CCORDANCE 

### W ITH 

### P REVIOUS 

### S ERVICE 

### I NFORMATION 

### —Continued

Affected Serial Numbers— Bombardier Service Bulletin— Revision— Dated—

For Model 45 airplanes having serial numbers 006 through 383, inclusive ... 45–26–9 1 ................................ December 22, 2008.

Alternative Methods of Compliance (AMOCs)

(i)(1) The Manager, Wichita 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.

(2) Before using any approved AMOC, notify your Principal Maintenance Inspector or Principal Avionics Inspector, as appropriate, or lacking a principal inspector, your local Flight Standards District Office.

Related Information

(j) For more information about this AD, contact James Galstad, Aerospace Engineer, Systems and Propulsion Branch, ACE–116W, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946–4135; fax (316) 946–4107; e-mail james.galstad@faa.gov.
Material Incorporated by Reference

(k) You must use the service information contained in Table 2 of this AD, as applicable, to do the actions required by this AD, unless the AD specifies otherwise.



### T ABLE 

### 2—M ATERIAL 

### I NCORPORATED BY 

### R EFERENCE

Document Revision Date

Bombardier Service Bulletin 40–26–05 ...................................................................................................................... 2 May 4, 2009. Bombardier Service Bulletin 45–26–9 ........................................................................................................................ 2 May 4, 2009.

(1) The Director of the Federal Register approved the incorporation by reference of the service information contained in Table 2 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) For service information identified in this AD, contact Learjet, Inc., One Learjet Way, Wichita, Kansas 67209–2942; telephone 316–946–2000; fax 316–946–2220; e-mail ac.ict@aero.bombardier.com; Internet http:// www.bombardier.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 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 October
5, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2010–25599 Filed 10–13–10; 8:45 am]

**BILLING CODE 4910–13–P** 

### DEPARTMENT OF TRANSPORTATION

**Federal Aviation Administration**

**14 CFR Part 71**

**[Docket No. FAA–2010–0634; Airspace Docket No. 10–AWP–8]** 



### Establishment of Class E Airspace; **Clifton/Morenci, AZ**

**AGENCY** 

### : Federal Aviation Administration (FAA), DOT.

**ACTION** 

### : Final rule.

**SUMMARY** 

### : This action will establish Class E airspace at Greenlee County Airport, Clifton/Morenci, AZ, to accommodate aircraft using new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Greenlee County Airport. This will improve the safety and management of Instrument Flight Rules (IFR) operations at the airport.

**DATES** 

### : Effective date, 0901 UTC, January 13, 2011. 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 July 29, 2010, the FAA published in the Federal Register a notice of proposed rulemaking to establish controlled airspace at Clifton/Morenci, AZ (75 FR 44725). 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 7400.9U dated August 18, 2010, and effective September 15, 2010, which is incorporated by reference in 14 CFR Part 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 establishing Class E airspace extending upward from 700 feet above the surface, at Greenlee County Airport, Clifton/ Morenci, CA, to accommodate IFR aircraft executing new RNAV (GPS) SIAPs 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