### [4910-13-P] DEPARTMENT OF TRANSPORTATION FederalAviation Administration 14 CFRPart 39 [Docket No. FAA-2016-2042; Directorate Identifier2016-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 ofthe engine model and concurrent modification ofthe 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 ofengine coolant, damage to the engine, and loss ofcontrol ofthe airplane. 

### DATES: This AD becomes effective [INSERT DATE 35 DAYS AFTERDATE OF PUBLICATION IN THE FEDERAL REGISTER].The Director ofthe Federal Register approved the incorporation byreference ofa certainpublication listed inthis AD as of[INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. ADDRESSES: For service information identified inthis final rule, 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: http://www.FLYROTAX.com. You may viewthis service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information

on the availability ofthis material at the FAA, call 781-238-7125. Itis also available

.on the Internet at http://www.regulations.gov by searching for and locating DocketNo. FAA-2016-2042. Examining the AD Docket You may examine the AD docket onthe Internet at http://www.regulations.gov by searching for and locating DocketNo. 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 ofTransportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 NewJersey Avenue SE., Washington, DC 20590

. FORFURTHERINFORMATION CONTACT: Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, 2Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: robert.green@faa.gov. SUPPLEMENTARY INFORMATION: Discussion We issued a notice ofproposed rulemaking (NPRM) to amend 14 CFRpart 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 ofthe 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) 912-020R7 /914-022R7 (single document) but was not identified by a change ofthe engine model designation or ofthe engine 

### PIN but only through the cylinder head 

### PIN and the position ofthe 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 ofthat 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) ofmore 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 DocketNo. FAA-2016-2042.

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### Comments We gave the public the opportunity to participate in developing this AD. We received no comments onthe 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 ofthis AD. 

### Related Service Information under 1 CFRPart 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 ofthe 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 orby the means identified in the ADDRESSES section. 

### Costs ofCompliance We estimate that this AD affects about 40 engines installed on aircraft ofU.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 onthese figures, we estimate the cost ofthis AD on U.S. operators to be $17,000. 

### 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. 4"Subtitle VII: Aviation Programs," describes in more detail the scope ofthe 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 ofcivil 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 ofthat authority because it addresses an unsafe conditionthat 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 onthe States, on the relationship between the national government and the States, or onthe distribution of power and responsibilities among the various levels ofgovernment. For the reasons discussed above, I certify this AD: (1) Is not a "significantregulatory 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 itjustifies making a regulatory distinction, and (4) Will not have a significant economic impact, positive or negative, on a substantial number ofsmall entities under the criteria ofthe Regulatory Flexibility Act.



### 5List ofSubjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption ofthe Amendment Accordingly, underthe authority delegated to me by the Administrator, the FAA amends 14 CFRpart 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 6with a cylinderhead that has a part number (PIN) listed in Figure 1to paragraph (c) of this AD and that is installed in position 2 or 3. 

### Figure 1 to Paragraph (c) 

### ofthis 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 cylinderhead temperature sensor to a new location and converted it

to a coolanttemperature sensor. We are issuing this AD to prevent exceeding coolant temperature limits, which could result in loss ofengine coolant, damage to the engine, and loss ofcontrol ofthe airplane. (e) 

### Actions and Compliance Comply with this AD within 6 months after the effective date ofthis AD, unless already done. (1) For engines with cylinderheads that have a 

### PIN listed in Figure 1to paragraph (c) ofthis AD installed onboth position 2 and position 3, change the engine model designation on the engine type dataplate to include a "-01" 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 1to paragraph (c) ofthis AD installed inposition 2 or 3, do one ofthe following: 7(i) Replace the cylinderhead having a 

### PIN listed in Figure 

### 1to paragraph (c) of this AD with a 

### PIN 623682 cylinderhead 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. Ifyou complete the actions in paragraph (e)(2)(i), no further action is required. Or, (ii) Install cylinder heads identified in Figure 1to paragraph (c) ofthis AD on both cylinder head positions 2 and 3 and change the engine model designation ofthe engine type dataplate in accordance with paragraph (e)(1) ofthis 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 ofCompliance (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. You may email yourrequest to: ANE-AD-AMOC@faa.gov. (g) Related Information (1) Formore 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.

8(2) Formore information about the installation modifications described in paragraph (e)(3) ofthis 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 DocketNo. 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) ofthis AD and can be obtained from BRP-Powertrain GmbH & Co. KG, using the contact information in paragraph (h)(3) ofthis AD: 

### Figure 2 to Paragraph (g) 

### ofthis AD -AircraftType/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 "SuperDimona" 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

9(h) Material Incorporated by Reference (1) The Director ofthe Federal Register approved the incorporation by reference (IBR) ofthe 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 viewthis 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 viewthis service information at the National Archives and Records Administration (NARA). For information onthe availability ofthis material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibrlocations.html.

10Issued in Burlington, Massachusetts, on June 14, 2016.

Colleen M. D'Alessandro, Manager, Engine & Propeller Directorate, Aircraft Certification Service.

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