[4910-13-P] 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA-2016-2042; Directorate Identifier 2016-NE-02-AD; Amendment 

39-18568; AD 2016-13-04] 

RIN 2120-AA64 

Airworthiness Directives; BRP-Powertrain GmbH & Co KG Reciprocating Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new airworthiness directive (AD) for certain BRPPowertrain GmbH & Co KG Rotax 912 F2, 912 F3, 912 F4, 912 S2, 912 S3, 912 S4, 914 

F2, 914 F3, and 914 F4 reciprocating engines. This AD requires re-identification of the 

engine model and concurrent modification of the aircraft to indicate the maximum 

coolant temperature limit. This AD was prompted by a design change introduced by the 

manufacturer that relocated the engine cylinder head temperature sensor to a different 

location and converted it to a coolant temperature sensor. We are issuing this AD to 

prevent exceeding engine coolant temperature limits, which could result in loss of engine 

coolant, damage to the engine, and loss of control of the airplane. 

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

PUBLICATION IN THE FEDERAL REGISTER]. 
The Director of the Federal Register approved the incorporation by reference of a 

certain publication listed in this AD as of [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

ADDRESSES: For service information identified in this final rule, contact BRPPowertrain GmbH & Co KG, Rotaxstrasse 1, A-4623 Gunskirchen, Austria; phone: +43 

7246 601 0; fax: +43 7246 601 9130; email: airworthiness@brp.com; Internet: 

http://www.FL YROTAX.com. You may view this service information at the FAA, 

Engine & Propeller Directorate, 1200 District A venue, Burlington, MA. For information 

on the availability of this material at the FAA, call 781-23 8-7125. It is also available.on 

the Internet at http://www.regulations.gov by searching for and locating Docket No. 

FAA-2016-2042. 

Examining the AD Docket 

You may examine the AD docket on the Internet at http://www.regulations.gov by 

searching for and locating Docket No. FAA-2016-2042; 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: Robert Green, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District A venue, 

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Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: 

robert. green@faa. gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

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

adding an AD that would apply to the specified products. The NPRM was published in 

the Federal Register on March 18, 2016 (81 FR 14804). The NPRM proposed to correct 

an unsafe condition for the specified products. The MCAI states: 

A design change of the engine cylinder heads was introduced by 

BRP-Powertrain in March 2013 which modifies the engine/aircraft 

interfaces by substituting the previous cylinder head temperature 

(CHT) measurement (limit temperature 135 °CI150 °C) with a 

coolant temperature (CT) measurement (limit temperature 120 °C). 

The design change was communicated on 15 May 2013 by BRPPowertrain Service Instruction (SI) 912-020R 7 /914-022R 7 (single 

document) but was not identified by a change of the engine model 

designation or of the engine PIN but only through the cylinder 

head PIN and the position of the temperature sensor. 

Consequently, engines with the new cylinder heads (installed 

during production or replaced in-service during maintenance) may 

be installed on an aircraft without concurrent modification of that 

aircraft, instructions for which should be provided by the type 

certificate (TC) holder or the supplemental type certificate (STC) 

holder, as applicable. In this case, the coolant temperature with a 

maximum engine operating limit of 120 oc (valid for engines 

operated with water diluted glycol coolant) is displayed on a CHT 

indicator with a typical limit marking (red radial/range) of more 

than 120 °C. 

You may obtain further information by examining the MCAI in the AD docket on 

the Internet at http://www.regulations.gov by searching for and locating Docket No. 

F AA-20 16-2042. 

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Comments 

We gave the public the opportunity to participate in developing this AD. We 

received no comments on the NPRM (81 FR 14804, March 18, 2016). 

Conclusion 

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

interest require adopting this AD as proposed expect for minor editorial changes. We 

determined that these changes will not increase the economic burden on any operator or 

increase the scope of this AD. 

Related Service Information under 1 CFR Part 51 

BRP-Powertrain GmbH & Co KG has issued Service Bulletin (SB) SB-912-

068/SB-914-049 (one document), dated April 16, 2015. The service information 

describes procedures for re-identification of the type plate for certain BRP-Powertrain 

GmbH & Co KG Rotax 912 and 914 engines. This service information is reasonably 

available because the interested parties have access to it through their normal course of 

business or by the means identified in the ADDRESSES section. 

Costs of Compliance 

We estimate that this AD affects about 40 engines installed on aircraft of U.S. 

registry. We also estimate that it will take about 5 hours per engine to inspect andreidentify the type plate. The average labor rate is $85 per hour. Based on these figures, we 

estimate the cost of this AD on U.S. operators to be $17,000. 

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. 

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"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 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. 

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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): 

2016-13-04 BRP-Powertrain GmbH & Co KG (formerly BRP-Rotax GmbH & Co 

KG, Bombardier-Rotax GmbH & Co. KG, and Bombardier-Rotax GmbH): 

Amendment 39-18568; Docket No. FAA-2016-2042; Directorate Identifier 2016-NE-02-

AD. 

(a) Effective Date 

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

PUBLICATION IN THE FEDERAL REGISTER]. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to BRP-Powertrain GmbH & Co KG Rotax model 912 F2, 912 

F3, 912 F4, 912 S2, 912 S3, 912 S4, 914 F2, 914 F3, and 914 F4 reciprocating engines 

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with a cylinder head that has a part number (PIN) listed in Figure 1 to paragraph (c) of 

this AD and that is installed in position 2 or 3. 

Figure 1 to Paragraph (c) of this AD- Post-Modification Cylinder Head PIN 

Engine Model 

912 F2, 912 F3, 912 F4, 914 F2, 

914 F3, and 914 F4 

912 S2, 912 S3, and 912 S4 

(d) Reason 

Cylinder Head PIN 

PIN 413235 or PIN 413236 

PIN 413185 

This AD was prompted by a design change introduced by the manufacturer that 

relocated the engine cylinder head temperature sensor to a new location and converted it 

to a coolant temperature sensor. We are issuing this AD to prevent exceeding coolant 

temperature limits, which could result in loss of engine coolant, damage to the engine, 

and loss of control of the airplane. 

(e) Actions and Compliance 

Comply with this AD within 6 months after the effective date of this AD, unless 

already done. 

(1) For engines with cylinder heads that have a PIN listed in Figure 1 to paragraph 

(c) of this AD installed on both position 2 and position 3, change the engine model 

designation on the engine type data plate to include a "-0 1" suffix. Use paragraph 3 .1.1 of 

BRP-Powertrain Service Bulletin (SB) SB-912-068/SB-914-049, dated April16, 2015, to 

make this change. 

(2) For engines with only one cylinder head having a PIN listed in Figure 1 to 

paragraph (c) of this AD installed in position 2 or 3, do one of the following: 

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(i) Replace the cylinder head having a PIN listed in Figure 1 to paragraph (c) of 

this AD with a PIN 623682 cylinder head on Rotax 912 F2, 912 F3 , 912 F4, 914 F2, 

914 F3, and 914 F4 engines and with a PIN 623687 cylinder head on Rotax 912 S2, 

912 S3 , and 912 S4 engines. If you complete the actions in paragraph (e)(2)(i), no further 

action is required. Or, 

(ii) Install cylinder heads identified in Figure 1 to paragraph (c) of this AD on 

both cylinder head positions 2 and 3 and change the engine model designation of the 

engine type data plate in accordance with paragraph (e)(1) of this AD. 

(3) For engines re-identified in accordance with paragraph (e)(l) or (e)(2)(ii) of 

this AD, before further flight, modify the aircraft cockpit instrumentation and related 

documentation to indicate a maximum coolant temperature limit of 120 degrees Celsius 

using FAA-approved procedures. These re-identified engines remain eligible for 

installation on approved aircraft-engine combinations. 

(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 3 9.19 to make your request. You may email 

your request to: ANE-AD-AMOC@faa.gov. 

(g) Related Information 

(1) For more information about this AD, contact Robert Green, Aerospace 

Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 

District Avenue, Burlington, MA 01803 ; phone: 781-238-7754; fax: 781-238-7199; 

email: robert. green@faa. gov. 

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(2) For more information about the installation modifications described in 

paragraph (e)(3) of this AD, contact Jim Rutherford, Aerospace Engineer, FAA, Small 

Airplane Directorate, 901 Locust Ave. Room 301, Kansas City, MO; phone: 816-329-

4165; fax: 816-329-4090; email: Jim.Rutherford@faa.gov. 

(3) Refer to MCAI European Aviation Safety Agency, AD 2015-0240, dated 

December 18, 2015, for more information. You may examine the MCAI in the AD 

docket on the Internet at http://www.regulations.gov by searching for and locating it in 

Docket No. FAA-2016-2042. 

( 4) The following aircraft service information, which are not incorporated by 

reference in this AD, contain FAA-approved procedures for complying with paragraph 

(e)(3) of this AD and can be obtained from BRP-Powertrain GmbH & Co. KG, using the 

contact information in paragraph (h)(3) of this AD: 

Figure 2 to Paragraph (g) of this AD -Aircraft Type/Model and Service 

Information 

Type I Model(s) SB 

Aquila AT01 SB-AT01-029 

TECNAM P92, P2002 and P2006T SB-183-CS 

TECNAM P2008 JC SB-185-CS 

Diamond H 36 "Dimona" and HK 36 "Super Dimona" OSB 36-111 

Diamond DV 20 "Katana" OSB 20-066 

Diamond (Canada) DA20-A1 "Katana" SB Da20-72-04 

M&D AVO 68 "Samburo" TM 808-31 

Scheibe SF 25 C and SF 36 R SI 02-14 

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(h) Material Incorporated by Reference 

(1) The Director of the Federal Register approved the incorporation by reference 

(IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information as applicable to do the actions required 

by this AD, unless the AD specifies otherwise. 

(i) BRP-Powertrain Service Bulletin SB-912-068/SB-914-049, dated April16, 

2015. 

(ii) Reserved. 

(3) For BRP-Powertrain service information identified in this AD, contact BRPPowertrain GmbH & Co. KG, Rotaxstrasse 1, A-4623 Gunskirchen, Austria; phone: +43 

7246 6010; fax: +43 7246 601 9130; email: airworthiness@brp.com; Internet: 

www.flyrotax.com. 

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

Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of 

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

(5) You may view this service information 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/cfr/ibrlocations.html. 

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Issued in Burlington, Massachusetts, on June 14, 2016. 

Colleen M. D' Alessandro, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

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