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Federal Register / Vol. 86, No. 91 / Thursday, May 13, 2021 / Rules and Regulations
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 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 Will not affect intrastate aviation in Alaska, and 3 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 14 CFR part 39 as follows:

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

Authority: 49 U.S.C. 106g, 40113, 44701.
Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20211027 BAE Systems Operations Limited: Amendment 3921560; Docket No. FAA20210138; Project Identifier MCAI202001466T.
a Effective Date This airworthiness directive AD is effective June 17, 2021.
b Affected ADs None.
c Applicability This AD applies to all BAE Systems Operations Limited airplanes specified in paragraphs c1 and 2 of this AD, certificated in any category.
1 Model BAe 146100A, 200A, and 300A airplanes.

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d Subject Air Transport Association ATA of America Code 33, Lights.
e Unsafe Condition This AD was prompted by a report indicating that during a routine battery capacity check on the emergency light power units, the printed circuit boards PCBs for power units LE 10 and LE 22 Illustrated Parts Catalog IPC 335000 were found to show signs of burning. The FAA is issuing this AD to address heat damage of the PCBs, which could lead to battery discharge and possibly result in lack of power supply to the emergency light units when needed.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Definitions 1 An affected part is defined as a Honeywell emergency light power unit, having part number 6035501, except for those modified and marked using the instructions specified in Honeywell Service Bulletin 603550330001, Revision 1, dated September 3, 2013.
2 A serviceable part is defined as an emergency light power unit that is not an affected part.
3 Group 1 airplanes are those that have an affected part installed.
4 Group 2 airplanes are those that do not have an affected part installed.
h Replacement Within two months after the effective date of this AD: Replace each affected part with a serviceable part.
Note 1 to paragraph h: BAE Systems Operations Limited Service Bulletin ISB.33081, dated November 4, 2019, contains information related to the replacement specified in paragraph h of this AD.

PART 39AIRWORTHINESS
DIRECTIVES

39.13

2 Model Avro 146RJ70A, 146RJ85A, and 146RJ100A airplanes.

i Parts Installation Prohibition As of the applicable compliance times specified in paragraphs i1 or 2 of this AD, do not install an affected part on any airplane.
1 For Group 1 airplanes: After replacement of each affected part on an airplane as specified in paragraph h of this AD.
2 For Group 2 airplanes: As of the effective date of this AD.
j Other FAA AD Provisions The following provisions also apply to this AD:
1 Alternative Methods of Compliance AMOCs: The Manager, Large Aircraft Section, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the Large Aircraft
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Section, International Validation Branch, send it to the attention of the person identified in paragraph k2 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
2 Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, Large Aircraft Section, International Validation Branch, FAA; or the European Union Aviation Safety Agency EASA; or BAE Systems Operations Limiteds EASA Design Organization Approval DOA. If approved by the DOA, the approval must include the DOAauthorized signature.
k Related Information 1 Refer to Mandatory Continuing Airworthiness Information MCAI EASA AD
20200237, dated October 28, 2020, for related information. This MCAI may be found in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No. FAA20210138.
2 For more information about this AD, contact Todd Thompson, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200
South 216th St., Des Moines, WA 98198;
telephone and fax: 2062313228; email Todd.Thompson@faa.gov.
3 For service information identified in this AD that is not incorporated by reference, contact BAE Systems Operations Limited, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; telephone +44
1292 675207; fax +44 1292 675704; email RApublications@baesystems.com; internet http www.baesystems.com.
l Material Incorporated by Reference None.
Issued on May 7, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202110068 Filed 51221; 8:45 am BILLING CODE 491013P

DEPARTMENT OF ENERGY
Federal Energy Regulatory Commission 18 CFR Part 157
Docket No. RM2015001; Order No. 871
B

Limiting Authorizations To Proceed With Construction Activities Pending Rehearing Federal Energy Regulatory Commission, Department of Energy.

AGENCY:

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