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Federal Register / Vol. 86, No. 152 / Wednesday, August 11, 2021 / Rules and Regulations a Effective Date This airworthiness directive AD is effective August 26, 2021.
b Affected ADs None.
c Applicability This AD applies to PZL Swidnik S.A.
Model PZL W3A helicopters, certificated in any category, with fairing part number P/N
30.23.015.00.03 installed on vibration absorber P/N 30.23.000.00.04 installed.
d Subject Joint Aircraft Service Component JASC
Code: 6200, Main Rotor System.
e Unsafe Condition This AD defines the unsafe condition as improper torque of a bolt securing the fairing to the vibration absorber due to lack of information regarding torque value for the nut. This condition could result in detachment of the fairing, causing damage to the main and tail rotor, and subsequent reduced control of the helicopter.

jbell on DSKJLSW7X2PROD with RULES

f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions Within 300 hours time in service after the effective date of this AD:
1 Remove from service each bolt P/N
3003A6163, washer P/N 3402A1, and castellated nut P/N 3336A6 that secure the fairing to the vibration absorber.
2 Visually inspect the bonding between the fairing and the vibration absorber for anodic coating. If there is any anodic coating, before further flight, i Polish the surface of the fairing and vibration absorber in all areas where washers make contact to remove all anodic coating.
ii Using 180220 grit abrasive paper, burnish the surface to improve bonding.
iii Wash the surface with extraction naphtha, or equivalent cleaning solution.
3 Insert a new bolt P/N 3003A6163
and a new washer P/N 3402A1 into each hole connecting the fairing to the vibration absorber.
4 At the vibration absorber star side, install a new washer P/N 3402A1, and a new castellated nut P/N 3336A6 onto each bolt. Torque each castellated nut to 5.4 1.0
Nm 0.55 0.10 kGm and lock each castellated nut with a cotter pin. If the specified torque range cannot be accomplished, remove the washer, bolt, and nut from service, replace these parts with airworthy parts, and reapply torque.
5 As of the effective date of this AD, do not install vibration absorber P/N
30.23.000.00.04 with a fairing P/N
30.23.015.00.03 on any helicopter unless they are inspected as required by paragraph g2 of this AD and installed as required by paragraphs g3 and 4 of this AD.
h Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, FAA, has the authority to approve
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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 local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph i1 of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.
i Related Information 1 For more information about this AD, contact Kristi Bradley, Program Manager, COS Program Management Section, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone 817 2225110; email kristin.bradley@faa.gov.
RNIA SPRZETU
2 WYTWO
KOMUNIKACYJNEGO PZL-Swidnik Spo5ka Akcyjna Alert Service Bulletin No.
ASB3719307, dated January 27, 2020, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact WSK PZLSwidnik S.A., Al. Lotnikow Polskich 1, 21
045 Swidnik, Poland; telephone +48 81722
5716; fax +48 81722 5625; email: PLCustomerSupport.AW@
leonardocompany.com; or at https
www.pzlswidnik.pl/en/home.
3 The subject of this AD is addressed in European Union Aviation Safety Agency EASA AD 20200038, dated February 27, 2020. You may view EASA AD 20200038 at https www.regulations.gov in Docket No.
FAA20210652.
j Incorporation by Reference None.
Issued on July 30, 2021.
Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202117025 Filed 81021; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 71
Docket No. FAA20210275; Airspace Docket No. 20AAL39
RIN 2120AA66

Modification of Class E Airspace;
Gulkana, AK
Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

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This action modifies the Class E airspace, designated as a surface area at Gulkana Airport, Gulkana, AK. This action also modifies the Class E airspace extending upward from 700 feet above the surface. The NPRM for this action proposed a modification to the Class E
airspace extending upward from 1,200
feet above the surface, however, the proposed change has been removed from the Final Rule. Additionally, this action removes the Gulkana VORTAC
and the Glenallen NDB from the Class E2 text header and airspace description.
Further, this action removes the Gulkana VOR/DME from the Class E5
text header and airspace description.
Lastly, this action implements administrative updates to the Class E2
and E5 text headers and the Class E2
airspace description. The airspace is designed to support instrument flight rules IFR operations at the airport.
DATES: Effective 0901 UTC, December 2, 2021. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA
Order 7400.11 and publication of conforming amendments.
ADDRESSES: FAA Order 7400.11E, Airspace Designations and Reporting Points, and subsequent amendments can be viewed online at https
www.faa.gov//air_traffic/publications/.
For further information, you can contact the Airspace Policy Group, Federal Aviation Administration, 800
Independence Avenue SW, Washington, DC 20591; telephone: 202 2678783.
The Order is also available for inspection at the National Archives and Records Administration NARA. For information on the availability of FAA
Order 7400.11E at NARA, email fr.inspection@nara.gov or go to https
www.archives.gov/federal-register/cfr/
ibr-locations.html.
FOR FURTHER INFORMATION CONTACT:
Matthew Van Der Wal, Federal Aviation Administration, Western Service Center, Operations Support Group, 2200 S
216th Street Des Moines, WA 98198;
telephone 206 2313695.
SUPPLEMENTARY INFORMATION:
SUMMARY:

Authority for This Rulemaking The FAAs authority to issue rules regarding aviation safety is found in Title 49 of the United States Code.
Subtitle I, Section 106 describes the authority of the FAA Administrator.
Subtitle VII, Aviation Programs, describes in more detail the scope of the agencys authority. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that
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