Federal Register / Vol. 87, No. 85 / Tuesday, May 3, 2022 / Proposed Rules 26145 

Conclusion 

This action affects only a certain 

novel or unusual design feature on the 

Leonardo Model AW139 helicopter. It is 

not a rule of general applicability and 

affects only the applicant who applied 

to the FAA for approval of this feature 

on the helicopter. 

List of Subjects in 14 CFR Part 29 

Aircraft, Aviation safety, Reporting 

and recordkeeping requirements. 

Authority Citation 

The authority citation for these 

special conditions is as follows: 

Authority: 49 U.S.C. 106(f), 106(g), 40113, 

44701–44702, 44704. 

The Proposed Special Conditions 

Accordingly, the Federal Aviation 

Administration (FAA) proposes the 

following special conditions as part of 

the type certification basis for the 

Leonardo S.p.a. Model AW139 

helicopter, as modified by The Boeing 

Company. 

(a) The Rotorcraft Flight Manual must 

state the following: 

(1) Use of the 2.5-minute Hovering 

Out of Ground Effect (HOGE) Utility 

Power (2.5-minute HUP) is limited to a 

period no longer than 2.5 minutes each, 

under all engine operating (AEO) 

conditions, at helicopter operating 

speeds below 60 knots indicated 

airspeed (KIAS) and HOGE. 

(2) Use of the 2.5-minute HUP is not 

part of, or combined with, a takeoff 

operation. 

(b) In addition to the requirements of 

§ 29.49(c), the out-of-ground effect hover 

performance must be determined over 

the ranges of weight, altitude, and 

temperatures for which certification is 

requested with the 2.5-minute HUP. 

(c) In addition to the requirements of 

§ 29.923(d) when performing the 

endurance test, the 2.5 minute all 

engines operating must be performed 

using two applications of 2.5-minute 

HUP torque and the maximum speed for 

use with 2.5-minute HUP torque, per 10- 

hour cycle. 

(d) In addition to the requirements of 

§ 29.1049, the hovering cooling 

provisions at the 2.5-minute HUP must 

be shown as follows— 

(1) Conduct a thermal stabilization at 

maximum weight, mission 

representative power, maximum 

altitude, and ambient temperatures 

specified in § 29.1043(b); following 

stabilization, increase power to the 2.5- 

minute HUP and HOGE for a duration 

of 2.5 minutes (150 seconds). 

(2) Cycle in and out the HUP mode in 

a manner representative of the intended 

use of the 2.5-minute HUP, and per the 

instructions specified in the Rotorcraft 

Flight Manual, if any. The HUP cycles 

should account for repeated successive 

HUP applications and time duration 

between HUP cycles resulting in the 

most critical condition for the cooling 

provisions required by § 29.1041(a) and 

(b). 

(3) Following the tests in paragraphs 

(d)(1) and (2) of these special 

conditions, depart the hover and 

transition to a maximum continuous 

power climb at the best rate of climb 

speed. Continue the climb until 5 

minutes after the highest temperatures 

are observed or until the service ceiling 

is reached. 

(e) In addition to the requirements of 

§ 29.1305, the pilot must have the 

means to identify the 2.5-minute HUP 

time limit associated with its use as 

follows— 

(1) When the power level is achieved, 

(2) when the event begins, and 

(3) when the time interval expires. 

These indications must be clear and 

unambiguous to the pilot and must not 

cause pilot confusion. The use of these 

indications must be evaluated in 

operationally relevant scenarios in 

accordance with § 29.1523 for crew 

workload. 

(f) In addition to the requirements of 

§ 29.1521, the use of the 2.5-minute 

HUP must be limited by the following: 

(1) The maximum rotational speed, 

which may not be greater than— 

(i) The maximum value determined 

by the rotor design, or 

(ii) The maximum value demonstrated 

during the type tests. 

(2) The maximum allowable turbine 

inlet or turbine outlet gas temperature 

(for turbine engines). 

(3) The maximum allowable power or 

torque for each engine, considering the 

power input limitations of the 

transmission with all engines operating. 

(4) The maximum allowable power or 

torque for each engine considering the 

power input limitations of the 

transmission with one engine 

inoperative; 

(5) The time limit for the use of the 

power corresponding to the limitations 

established in paragraphs (f)(1) through 

(4) of these special conditions. 

(6) The maximum allowable engine 

and transmission oil temperatures, if the 

time limit established in paragraph (f)(5) 

of these special conditions exceeds 2 

minutes. 

(7) Use of 2.5-minute HUP is limited 

to HOGE only. 

(g) In addition to the requirements of 

§ 29.1587(b)(8), the Rotorcraft Flight 

Manual must contain the out-of-ground 

effect hover performance determined 

under paragraph (b) of these special 

conditions, and the maximum safe wind 

demonstrated under the ambient 

conditions for the data presented. In 

addition, the Rotorcraft Flight Manual 

must include the maximum weight for 

each altitude and temperature condition 

at which the rotorcraft can safely hover 

out-of-ground-effect in winds not less 

than 17 knots from all azimuths. These 

data must be clearly referenced to the 

appropriate hover charts and specify 

that they are not to be used for take-off 

or landing determinations. 

Issued in Kansas City, Missouri, on April 

28, 2022. 

Patrick R. Mullen, 

Manager, Technical Innovation Policy 

Branch, Policy and Innovation Division, 

Aircraft Certification Service. 

[FR Doc. 2022–09488 Filed 5–2–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 117 

[Docket No. USCG–2022–0222] 

RIN 1625–AA09 

Drawbridge Operation Regulation; 

Okeechobee Waterway, Stuart, FL 

AGENCY: Coast Guard, DHS. 

ACTION: Notification of inquiry, request 

for comments. 

SUMMARY: The Coast Guard is seeking 

information and comments on a 

proposed change to the operating 

regulations for the Florida East Coast 

(FEC) Railroad Bridge, mile 7.4, and the 

SR 707 (Dixie Hwy) Bridge, mile 7.5, 

across the Okeechobee Waterway 

(OWW), at Stuart, Florida. In 

anticipation of passenger rail service 

across the FEC Railroad Bridge, the 

Coast Guard intends to propose a 

change that will allow the drawbridge to 

operate on a more predictable schedule. 

The Coast Guard intends to propose a 

similar operating schedule for the 

adjacent SR 707 (Dixie Hwy) Bridge. We 

invite your comments on this proposed 

rulemaking. 

DATES: Comments and related material 

must reach the Coast Guard on or before 

July 5, 2022. 

ADDRESSES: You may submit comments 

identified by docket number USCG– 

2022–0222 using Federal Decision 

Making Portal at https://

www.regulations.gov. 

See the ‘‘Public Participation and 

Request for Comments’’ portion of the 


lotter on DSK11XQN23PROD with PROPOSALS1
26146 Federal Register / Vol. 87, No. 85 / Tuesday, May 3, 2022 / Proposed Rules 

SUPPLEMENTARY INFORMATION section 

below for instructions on submitting 

comments. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this notice, call 

or email Ms. Jennifer Zercher, Bridge 

Management Specialist, Seventh Coast 

Guard District, telephone 305–415– 

6740, email Jennifer.N.Zercher@

uscg.mil. 

SUPPLEMENTARY INFORMATION: 

I. Table of Abbreviations 

CFR Code of Federal Regulations 

DHS Department of Homeland Security 

E.O. Executive Order 

FR Federal Register 

§ Section Symbol 

U.S.C. United States Code 

FEC Florida East Coast 

SR State Route 

WAMS Waterways Analysis and 

Management System 

OWW Okeechobee Waterway 

HWY Highway 

II. Background, Purpose and Purpose 

The FEC Railroad Bridge across the 

OWW, mile 7.4, at Stuart, Florida is a 

single-leaf bascule railroad bridge with 

a six-foot vertical clearance at mean 

high water in the closed position. The 

normal operating schedule for the 

bridge is found in 33 CFR 117.317(c). 

The SR 707 (Dixie Hwy) Bridge across 

the OWW, mile 7.5, at Stuart, Florida is 

a double-leaf bascule bridge with a 14- 

foot vertical clearance at mean high 

water in the closed position. The normal 

operating schedule for the bridge is 

found in 33 CFR 117.317(d). Navigation 

on the waterway is commercial and 

recreational. 

In response to All Aboard Florida 

Railway’s (Brightline) expansion project 

development and environmental study, 

U.S. Coast Guard Sector Miami 

Waterways Management Office 

conducted a Waterways Analysis and 

Management System (WAMS) review of 

the Intracoastal Waterway from miles 

925–1005 in 2018. The WAMS included 

a focused review of the railroad bridges 

over the St Lucie River (OWW) and 

Loxahatchee River. The WAMS 

concluded that, with the addition of 

passenger rail service, the FEC Railroad 

Bridge over the OWW would create an 

unreasonable obstruction to navigation 

if operated under the current regulation, 

33 CFR 117.317(c). U.S. Coast Guard 

Captain of the Port Miami, based on the 

WAMS, recommended the regulation for 

the railroad bridge be changed to allow 

for reasonable usage of competing 

modes of transportation and provide a 

predictable opening schedule. 

III. Information Requested 

To aid us in further developing a 

proposed rule, we seek responses from 

waterway users to the following 

questions: 

(1) Do you currently transit through 

the FEC Railroad Bridge crossing the 

Okeechobee Waterway, mile 7.4, at 

Stuart, Florida? 

(2) How often do you transit this 

waterway? 

(3) If railway traffic impedes your 

navigation of this area, how long are you 

normally delayed? 

(4) How would you propose to 

regulate the balance of railway and 

maritime traffic in this area? 

(5) What challenges have you 

experienced when transiting this area 

due to these bridges and/or railway 

activity? 

(6) Is a 15 minute hourly opening 

schedule sufficient for marine traffic? If 

not, please explain why. 

(7) Should the SR 707 (Dixie Hwy) 

Bridge opening schedule mirror the 

operating schedule of the FEC Railroad 

Bridge? 

IV. Public Participation and Request for 

Comments 

We encourage you to submit 

comments in response to this notice of 

inquiry through the Federal Decision 

Making Portal at https://

www.regulations.gov. To do so, go to 

https://www.regulations.gov, type 

USCG–2022–0222 in the search box and 

click ‘‘Search.’’ Next, look for this 

document in the Search Results column, 

and click on it. Then click on the 

Comment option. In your submission, 

please include the docket number for 

this notice of inquiry and provide a 

reason for each suggestion or 

recommendation. If your material 

cannot be submitted using https://

www.regulations.gov contact the person 

in the FOR FURTHER INFORMATION

CONTACT section of this document for 

alternate instructions. 

To view documents mentioned in this 

proposed rule as being available in the 

docket, find the docket as described in 

the previous paragraph, and then select 

‘‘Supporting & Related Material’’ in the 

Document Type column. Public 

comments will also be placed in our 

online docket and can be viewed by 

following instructions on the https://

www.regulations.gov Frequently Asked 

Questions web page. We review all 

comments received, but we may choose 

not to post off-topic, inappropriate, or 

duplicate comments that we receive. 

Additionally, if you go to the online 

docket and sign up for email alerts, you 

will be notified when comments are 

posted or a final rule is published. 

We accept anonymous comments. 

Comments we post to https://

www.regulations.gov will include any 

personal information you have 

provided. For more about privacy and 

submissions in response to this 

document, see DHS’s eRulemaking 

System of Records notice (85 FR 14226, 

March 11, 2020). 

We may hold a public meeting, if 

necessary, to receive oral comments on 

this Notice of Inquiry and will 

announce the date, time, and location in 

a separate document published in the 

Federal Register. If you signed up for 

docket email alerts mentioned in the 

paragraph above, you will receive an 

email notice when the public meeting 

notice is published and placed in the 

docket. 

This document is issued under 

authority of 5 U.S.C. 552(a); 33 U.S.C. 

499. 

Dated: April 22, 2022. 

Brendan C. McPherson, 

Rear Admiral, U.S. Coast Guard, Commander 

Coast Guard Seventh District. 

[FR Doc. 2022–09378 Filed 5–2–22; 8:45 am] 

BILLING CODE 9110–04–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Parts 2, 59, 60, 80, 85, 86, 87, 

600, 1027, 1030, 1033, 1036, 1037, 1039, 

1042, 1043, 1045, 1048, 1051, 1054, 

1060, 1065, 1066, 1068, and 1090 

[EPA–HQ–OAR–2019–0055; FRL–9813–01– 

OAR] 

Control of Air Pollution From New 

Motor Vehicles: Heavy-Duty Engine 

and Vehicle Standards; Extension of 

Comment Period 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice; extension of public 

comment period. 

SUMMARY: On March 28, 2022, the 

Environmental Protection Agency (EPA) 

published a proposed rule titled 

‘‘Control of Air Pollution from New 

Motor Vehicles: Heavy-Duty Engine and 

Vehicle Standards’’. EPA is extending 

the comment period for this proposed 

rule. 

DATES: The comment period for the 

proposed rule published on March 28, 

2022, at 87 FR 17414, is extended. 

Comments must be received on or 

before May 16, 2022. 

ADDRESSES: You may send your 

comments, identified by Docket ID No. 

EPA–HQ–OAR–2019–0055, by any of 

the following methods: 


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