[Docket No. FAA-2013-0164; Directorate Identifier 2013-NE-10-AD; Amendment 

39-17834; AD 2014-08-10] 

RIN 2120-AA64 

Airworthiness Directives; Austro Engine GmbH Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding airwmthiness directive (AD) 2013-14-08 for all 

Austro Engine GmbH model E4 engines. AD 2013-14-08 required removing from service 

certain part number (PIN) waste gate controllers. This AD requires removing certain 

additional PIN waste gate controllers from service. This AD was prompted by several 

reports of power loss events due to fracture of the waste gate controller lever. We are 

issuing this AD to prevent failure of the waste gate controller lever, which could lead to 

damage to one or more engines, loss of thrust control, and damage to the airplane. 

DATES: This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

ADDRESSES: For service information identified in this AD, contact Austro Engine 

GmbH, Rudolf-Diesel-Strasse 11, A-2700 Weiner Neustadt, Austria; phone: +43 2622 

23000; fax: +43 2622 23000-2711; Internet: www.austroengine.at. You may view this 

service infom1ation at the FAA, Engine & Propeller Directorate, 12 New England 
searching for and locating Docket No. F AA-20 13-0 164; 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 mandatory continuing airworthiness 

information (MCAI), 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: Wego Wang, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & Propell er Directorate, 12 New England 

Executive Park, Burlington, MA 0 1803; phone: 781-238-7134; fax: 781-238-7199; email: 

wego.wangC£daa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to 

supersede AD 2013-14-08, Amendment 39-17513 (78 FR 42677, July 17, 2013), ("AD 

2013-14-08"). AD 2013-14-08 applied to the specified products. The NPRM published in 

the Federal Register on January 10,2014 (79 FR 1774). The NPRM proposed to continue 

to require removal from service of certain P/N waste gate controllers. The NPRM also 

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received no comments on the NPRM (79 FR 1774, January I 0, 20 14). 

Conclusion 

We reviewed the available data and determined that air safety and the public 

interest require adopting this AD as proposed. 

Costs of Compliance 

We estimate that this AD affects 128 engines installed on airplanes of U.S. 

registry. We also estimate that it will take about 0.5 hours per engine to comply with this 

AD. The average labor rate is $85 per hour. Required parts cost about $23 I per engine. 

Based on these figures, we estimate the total cost of this AD to U.S. operators to be 

$35,008. 

Authority for this Rulemaking 

Title 49 ofthe United States Code specifies the FAA's authority to issue rules on 

aviation safety. Subtitle I, Section 106, describes the authority ofthe 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 VTI, 

Part A, Subpart Ill, 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 

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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 to the extent that it justifies 

making a regulatory distinction, 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 part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: 

PART 39 - AIRWORTHINESS DIRECTIVES 

1. The authority citation for part 39 continues to read as follows: 

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AD: 

2014-08-10 Austro Engine GmbH Engines: Amendment 39-17834; Docket 

No. FAA-20 13-0 164; Directorate Identifier 20 13-NE-1 0-AD. 

(a) Effective Date 

This AD is effective [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION fN THE FEDERAL REG1 STER]. 

(b) Affected ADs 

This AD supersedes AD 2013-14-08, Amendment 39-175 13 (78 FR 42677, July 

17, 2013). 

(c) Applicability 

This AD applies to all Austro Engine GmbH model E4 engines, with a waste gate 

controller, part number (PIN) E4A-41-120-000, Revision 060 or lower revision; or a 

waste gate controller, PIN E4B-41-120-000, Revision 010 or lower revision, installed. 

(d) Unsafe Condition 

This AD was prompted by engine power loss events due to fracture of the waste 

gate controller lever. We are issuing this AD to prevent failure of the waste gate 

controller lever, which could lead to damage to one or more engines, loss of thrust 

control, and damage to the airplane. 

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the effective date of this AD, or within three months after the effective date of this AD, 

whichever occurs first, remove from service waste gate controller, PIN E4A-41-120-000, 

Revision 060 or lower revision, and waste gate controller, PIN E4B-41-120-000, Revision 0 I 0 or lower revision. 

(f) Installation Prohibition 

After the effective date of this AD, do not install any waste gate controller, PIN 

E4A-41-120-000, Revision 060 or lower revision, or waste gate controller, PIN E4B-41-

120-000, Revision 0 l 0 or lower revision, onto any engine, or approve for return to 

service any engine that has either waste gate controller installed. 

(g) Alternative Methods of Compliance (AMOCs) 

The Manager, Engine Certification Office, may approve AMOCs for this AD. Use 

the procedures found in 14 CFR 39.19 to make your request. 

(h) Related Information 

( 1) For more information about this AD, contact Wego Wang, Aerospace 

Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 01803 ; phone: 781 -238-7134; fax: 781-238-

7199; email: v.:cgo.•.vang«' faa.gov . 

(2) Refer to MCAl European Aviation Safety Agency AD 2013-0213, dated 

September 13, 2013, for more information. You may examine the MCAI in the AD 

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obtained from Austro Engine GmbH, using the contact information in paragraph (h)(4) of 

this AD. 

(4) For service information identified in this AD, contact Austro Engine GmbH, 

Rudolf-Diesci-Strasse 11, A-2700 Weiner Neustadt, Austria; phone: +43 2622 23000; 

fax: +43 2622 23000-2711; Internet: '"' \\ .austroengine.al. 

(5) You may view this service information at the FAA, Engine & Propeller 

Directorate, 12 New England Executive Park, Burlington, MA. For infom1ation on the 

availability of this material at the FAA, call 781-238-7125. 

(i) Material Incorporated by Reference 

None. 

lssued in Burlington, Massachusetts, on April 15, 2014. 

Ann C Mollica, 

Acting Assistant Directorate Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

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