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Federal Register / Vol. 86, No. 210 / Wednesday, November 3, 2021 / Rules and Regulations e Unsafe Condition This AD was prompted by a report of missing sealant on the left and right wing leading edge outboard blowout door. The FAA is issuing this AD to address the missing sealant, which is intended to act as a fuel barrier. In the presence of a substantial fuel leak from the wing box, the unintended drain path could allow fuel to come into contact with the engine. This condition, if not addressed, could lead to a large ground fire.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions Except as specified by paragraph h of this AD, at the applicable times specified in the Compliance paragraph of Boeing Alert Requirements Bulletin 73757A1350 RB, dated April 23, 2020, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 73757A1350
RB, dated April 23, 2020.
Note 1 to paragraph g: Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 73757A1350, dated April 23, 2020, which is referred to in Boeing Alert Requirements Bulletin 73757A1350 RB, dated April 23, 2020.
h Exception to Service Information Specifications
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Where Boeing Alert Requirements Bulletin 73757A1350 RB, dated April 23, 2020, refers to the Original Issue date of Requirements Bulletin 73757A1350 RB, this AD requires using the effective date of this AD.
i Alternative Methods of Compliance AMOCs 1 The Manager, Seattle ACO 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 manager of the certification office, send it to the attention of the person identified in paragraph j of this AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
3 An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization ODA that has been authorized by the Manager, Seattle ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD.

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j Related Information For more information about this AD, contact Chris Baker, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 2062313552;
email: christopher.r.baker@faa.gov.
k 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. 552a 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 Boeing Alert Requirements Bulletin 73757A1350 RB, dated April 23, 2020.
ii Reserved 3 For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services C&DS, 2600 Westminster Blvd., MC 110SK57, Seal Beach, CA 907405600;
telephone 5627971717; internet https
www.myboeingfleet.com.
4 You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
5 You may view this service information that is incorporated by reference at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email fr.inspection@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on September 10, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202123935 Filed 11221; 8:45 am BILLING CODE 491013P

NATIONAL AERONAUTICS AND
SPACE ADMINISTRATION
14 CFR Part 1215
Document Number NASA21058; Docket NumberNASA20210005
RIN 2700AE62

Tracking and Data Relay Satellite System TDRSS
National Aeronautics and Space Administration.
ACTION: Direct final rule; nomenclature change.
AGENCY:

This direct final rule amends NASAs rule on Tracking and Data Relay Satellite System TDRSS to make nomenclature changes to update acronyms, network names, and office designations cited in the rule.

SUMMARY:

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This direct final rule is effective on January 3, 2022. Comments due on or before December 3, 2021. If adverse comments are received, NASA will publish a timely withdrawal of the rule in the Federal Register.
ADDRESSES: Comments must be identified with RINs 2700AE62 and may be sent to NASA via the Federal ERulemaking Portal: http
www.regulations.gov. Follow the online instructions for submitting comments.
Please note that NASA will post all comments on the internet with changes, including any personal information provided.
FOR FURTHER INFORMATION CONTACT:
Craig Salvas, 2023582330, craig.salvas@nasa.gov.
SUPPLEMENTARY INFORMATION:
DATES:

I. Direct Final Rule and Significant Adverse Comments NASA has determined this rulemaking meets the criteria for a direct final rule because it makes nonsubstantive changes to make nomenclature changes to update acronyms, network names, and office designations cited in the rule. No opposition to the changes and no significant adverse comments are expected. However, if NASA receives significant adverse comments, it will withdraw this direct final rule by publishing a notice in the Federal Register. A significant adverse comment is one that explains: 1 Why the direct final rule is inappropriate, including challenges to the rules underlying premise or approach; or 2 why the direct final rule will be ineffective or unacceptable without a change. In determining whether a comment necessitates withdrawal of this direct final rule, NASA will consider whether it warrants a substantive response in a notice and comment process.
II. Background TDRSS is a network of U.S.
communication satellites and ground stations used by NASA for space communications near the Earth. The system was designed to increase the time spacecraft were in communication with the ground and improve the amount of data that could be transferred. The primary goal of TDRSS
is to provide improved tracking and data acquisition services capability to spacecraft in low-Earth orbit or to mobile terrestrial users such as aircraft or balloons. NASA is amending this rule to make nomenclature changes to update acronyms, network names, and office designations cited in 1215.103, 1215.108, and 1215.109.

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