14804 Federal Register / Vol. 81, No. 53 / Friday, March 18, 2016 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2016–2042; Directorate 

Identifier 2016–NE–02–AD] 

RIN 2120–AA64 

Airworthiness Directives; BRPPowertrain GmbH & Co KG 

Reciprocating Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

BRP-Powertrain 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 proposed 

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. This proposed AD 

would require re-identification of the 

engine model and concurrent 

modification of the aircraft to indicate 

the maximum coolant temperature limit. 

We are proposing 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: We must receive comments on 

this proposed AD by May 17, 2016. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Mail: Docket Management Facility, 

U.S. Department of Transportation, 1200 

New Jersey Avenue SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

• Fax: 202–493–2251. 

For service information identified in 

this NPRM, contact BRP-Powertrain 

GmbH & Co KG, Rotaxstrasse 1, A–4623 

Gunskirchen, Austria; Internet: http://

www.FLYROTAX.com. You may view 

this service information at the FAA, 

Engine & Propeller Directorate, 1200 

District Avenue, Burlington, MA. For 

information on the availability of this 

material at the FAA, call 781–238–7125. 

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 

Operations office between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this proposed 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 

in the ADDRESSES section. Comments 

will be available in the AD docket 

shortly after receipt. 

FOR FURTHER INFORMATION 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. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2016–2042; Directorate Identifier 

2016–NE–02–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http://

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD 2015– 

0240, dated December 18, 2015 (referred 

to hereinafter as ‘‘the MCAI’’), 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 °C/150 

°C) with a coolant temperature (CT) 

measurement (limit temperature 120 °C). 

The design change was communicated on 

15 May 2013 by BRP-Powertrain Service 

Instruction (SI) 912–020R7/914–022R7 

(single document) but was not identified by 

a change of the engine model designation or 

of the engine P/N but only through the 

cylinder head P/N 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 °C (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. 

BRP-Powertrain GmbH & Co KG 

introduced a design change that 

relocated the engine cylinder head 

temperature sensor from the top of the 

cylinder to a new location and 

converted it to a coolant temperature 

sensor. The coolant temperature 

maximum engine operating limit is now 

less than the cylinder head temperature 

maximum operating limit. 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. 

FAA–2016–2042. 

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 reidentification 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 of this NPRM. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of Austria, and is 

approved for operation in the United 

States. Pursuant to our bilateral 

agreement with the European 

Community, EASA has notified us of 

the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all 

information provided by EASA and 

determined the unsafe condition exists 

and is likely to exist or develop on other 

products of the same type design. This 

proposed AD would require reidentification of the engine model and 


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Federal Register / Vol. 81, No. 53 / Friday, March 18, 2016 / Proposed Rules 14805 

the concurrent modification of the 

aircraft to indicate maximum coolant 

temperature limit. 

Costs of Compliance 

We estimate that this proposed AD 

affects about 40 engines installed on 

aircraft of U.S. registry. We also estimate 

that it would take about 5 hours per 

engine to inspect and re-identify the 

type plate. The average labor rate is $85 

per hour. Based on these figures, we 

estimate the cost of this proposed 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. ‘‘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 proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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 proposed regulation: 

(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. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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): 

BRP-Powertrain GmbH & Co KG (formerly 

BRP-Rotax GmbH & Co KG, BombardierRotax GmbH & Co. KG, and BombardierRotax GmbH): Docket No. FAA–2016– 

2042; Directorate Identifier 2016–NE– 

02–AD. 

(a) Comments Due Date 

We must receive comments by May 17, 

2016. 

(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 with a 

cylinder head that has a part number (P/N) 

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 P/N 

Engine model Cylinder head P/N 

912 F2, 912 F3, 912 F4, 914 F2, 914 F3, and 914 F4 ................................................................................................ P/N 413235 or P/N 413236. 

912 S2, 912 S3, and 912 S4 ......................................................................................................................................... P/N 413185. 

(d) Reason 

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 P/N 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 ‘‘-01’’ suffix. Use paragraph 3.1.1 of 

BRP-Powertrain Service Bulletin (SB) SB– 

912–068/SB–914–049, dated April 16, 2015, 

to make this change. 

(2) For engines with only one cylinder 

head having a P/N listed in Figure 1 to 

paragraph (c) of this AD installed in position 

2 or 3, do one of the following: 

(i) Replace the cylinder heads having P/Ns 

listed in Figure 1 to paragraph (c) of this AD 

with a P/N 623682 cylinder head on Rotax 

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

914 F4 engines and with a P/N 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 eligible cylinder heads with P/ 

Ns 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)(1) 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 39.19 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. 

(2) For more information about the 

installation modifications described in 

paragraph (e)(3) of this AD, contact Jim 

Rutherford, Aerospace Engineer, FAA, Small 


asabaliauskas on DSK3SPTVN1PROD with PROPOSALS
14806 Federal Register / Vol. 81, No. 53 / Friday, March 18, 2016 / Proposed Rules 

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) BRP-Powertrain GmbH & Co KG Service 

Bulletin (SB) SB–912–068/SB–914–049 (one 

document), dated April 16, 2015, can be 

obtained from BRP-Powertrain GmbH & Co 

KG, using the contact information in 

paragraph (g)(6) of this proposed AD. 

(5) The following aircraft service 

information contains 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 (g)(6) of this 

proposed AD: 

FIGURE 2 TO PARAGRAPH (G) OF THIS AD—AIRCRAFT TYPE/MODEL AND SERVICE INFORMATION

Type/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 

(6) For service information identified in 

this proposed AD, contact BRP-Powertrain 

GmbH & Co. KG, Rotaxstrasse 1, A–4623 

Gunskirchen, Austria; phone: +43 7246 6010; 

fax: +43 7246 601 9130; email: 

airworthiness@brp.com; Internet: www.rotaxaircraft-engines.com. 

(7) You may view this service information 

at the FAA, Engine & Propeller Directorate, 

1200 District Avenue, Burlington, MA. For 

information on the availability of this 

material at the FAA, call 781–238–7125. 

Issued in Burlington, Massachusetts, on 

March 11, 2016. 

Colleen M. D’Alessandro, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2016–06118 Filed 3–17–16; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 165 

[Docket Number USCG–2016–0163] 

RIN 1625–AA00 

Safety Zone; Willamette River, 

Portland, OR 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Coast Guard proposes to 

establish a safety zone for certain waters 

of the Willamette River in the vicinity 

of Tom McCall Waterfront Park, 

Portland, OR. This action is necessary to 

provide for the safety of life on these 

navigable waters for the duration of the 

marine event on July 10, 2016. This 

proposed rulemaking would prohibit 

persons and vessels from being in the 

safety zone unless authorized by the 

Captain of the Port Sector Columbia 

River or a designated representative. We 

invite your comments on this proposed 

rulemaking. 

DATES: Comments and related material 

must be received by the Coast Guard on 

or before April 18, 2016. 

ADDRESSES: You may submit comments 

identified by docket number USCG– 

2016–0163 using the Federal 

eRulemaking Portal at http://

www.regulations.gov. See the ‘‘Public 

Participation and Request for 

Comments’’ portion of the 

SUPPLEMENTARY INFORMATION section for 

further instructions on submitting 

comments. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions about this proposed 

rulemaking, call or email Ken 

Lawrenson, Waterways Management 

Division, Marine Safety Unit Portland, 

U.S. Coast Guard; telephone 503–240– 

9319, email msupdxwwm@uscg.mil. 

SUPPLEMENTARY INFORMATION: 

I. Table of Abbreviations 

CFR Code of Federal Regulations 

DHS Department of Homeland Security 

FR Federal Register 

NPRM Notice of proposed rulemaking 

§ Section 

U.S.C. United States Code 

II. Background, Purpose, and Legal 

Basis 

On December 22, 2015, the Human 

Access Project notified the Coast Guard 

that it will be conducting a marine event 

from 10 a.m. to 7 p.m. on July 10, 2016, 

for The Big Float. This event will be a 

group inner-tube float of the Willamette 

River in downtown Portland from the 

Marquam Bridge to Tom McCall 

Waterfront Park. The Captain of the Port 

Sector Columbia River (COTP) has 

determined that the potential hazards 

associated with this marine event would 

be a safety concern for anyone transiting 

between the Hawthorne Bridge and 

Marquam Bridge. The purpose of this 

rulemaking is to ensure the safety of 

persons, vessels, and the navigable 

waters before, during, and after the 

scheduled event. The Coast Guard 

proposes this rulemaking under 

authority in 33 U.S.C. 1231. 

III. Discussion of Proposed Rule 

The COTP proposes to establish a 

safety zone from 10 a.m. to 7 p.m. on 

July 7, 2016. The safety zone would 

cover all navigable waters within a 

straight line from the Hawthorne Bridge 

to the Marquam Bridge extending 

approximately 200 yards from the shore 

east into the Willamette River. The 

duration of the zone is intended to 

ensure the safety of event participants, 

vessels and these navigable waters 

during the event scheduled from 10 a.m. 

to 7 p.m.. No vessel or person would be 

permitted to enter the safety zone 

without obtaining permission from the 

COTP or a designated representative. 

The regulatory text we are proposing 

appears at the end of this document. 

IV. Regulatory Analyses 

We developed this proposed rule after 

considering numerous statutes and 

Executive orders related to rulemaking. 

Below we summarize our analyses 

based on a number of these statutes and 

Executive orders and we discuss First 

Amendment rights of protestors. 

A. Regulatory Planning and Review 

Executive Orders 12866 and 13563 

direct agencies to assess the costs and 

benefits of available regulatory 

alternatives and, if regulation is 

necessary, to select regulatory 

approaches that maximize net benefits. 


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