Voglio sapere a riguardo di…

33498

Federal Register / Vol. 86, No. 120 / Friday, June 25, 2021 / Rules and Regulations
Accomplishment Instructions, paragraph 3.A.1b of GEnx1B SB 720472, or paragraph 3.A.1b of GEnx2B SB 720415;
or iii An ECI indication that does not meet the serviceable or repairable limits referenced in the Accomplishment Instructions, paragraph 3.A.1b of GEnx1B SB 720472, or paragraph 3.A.1b of GEnx2B SB 72
0415.
i Credit for Previous Actions 1 For affected GEnx1B model turbofan engines, you may take credit for the BSI or ECI required by paragraph g1 of this AD, if you performed an ECI of the stages 610
compressor rotor spool webs, web transitions, and bore faces before the effective date of this AD using Subtask 723145
160002 of TASK 723145200807 in GE
GEnx1B Engine Manual 052100, Life Limits 001 Mandatory Inspections, Rev. 31, dated January 31, 2020, or earlier, and no rejectable indications were found.
2 For affected GEnx2B model turbofan engines, you may take credit for the BSI or ECI required by paragraph g1 of this AD, if you performed and ECI of the stages 610
compressor rotor spool webs, web transitions, and bore faces before the effective date of this AD using Subtask 723145
160002 of TASK 723145200801 in GE
GEnx2B Engine Manual 052100, Life Limits 001 Mandatory Inspections, Rev. 24, dated January 31, 2020, or earlier, and no rejectable indications were found.
3 For affected GEnx1B model turbofan engines, you may take credit for the BSI or ECI required by paragraph g1 of this AD, if you performed that inspection before the effective date of this AD using GE GEnx1B
Service Bulletin SB 720472 R00, dated April 24, 2020, or GE GEnx1B SB 720472
R01, dated July 24, 2020, and no rejectable indications were found.
4 For affected GEnx2B model turbofan engines, you may take credit for the BSI or ECI required by paragraph g1 of this AD, if you performed that inspection before the effective date of this AD using GE GEnx2B
SB 720415 R00, dated April 24, 2020, or GE
GEnx2B SB 720415 R01, dated July 24, 2020, and no rejectable indications were found.

lotter on DSK11XQN23PROD with RULES1

1 The Manager, ECO 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 local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in Related Information. You may email your request to: ANE-AD-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.

16:27 Jun 24, 2021

Jkt 253001

l 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 GE GEnx1B Service Bulletin SB 72
0472 R02, dated November 5, 2020.
ii GE GEnx2B SB 720415 R02, dated November 5, 2020.
3 For General Electric Company service information identified in this AD, contact General Electric Company, 1 Neumann Way, Cincinnati, OH 45215; phone: 513 552
3272; email: aviation.fleetsupport@
ae.ge.com; website: www.ge.com.
4 You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781 2387759.
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: fedreg.legal@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on May 19, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202113424 Filed 62421; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39

j Alternative Methods of Compliance AMOCs
VerDate Sep<11>2014

k Related Information For more information about this AD, contact Mehdi Lamnyi, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781
2387743; fax: 781 2387199; email:
Mehdi.Lamnyi@faa.gov.

Docket No. FAA20210512; Project Identifier MCAI202001621R; Amendment 3921627; AD 20211321
RIN 2120AA64

Airworthiness Directives; Leonardo S.p.a. Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

Examining the AD Docket
The FAA is adopting a new airworthiness directive AD for certain Leonardo S.p.a. Model AB139, AW139, and AW189 helicopters. This AD was
SUMMARY:

PO 00000

Frm 00020

Fmt 4700

Sfmt 4700

prompted by a report of the in-flight failure of one of the three stainless steel external rings bonded to the main rotor swashplate boot. This AD requires repetitive inspections of these stainless steel external rings for corrosion, cracks, and the condition of the adhesive that bonds the rings to the main rotor swashplate boot, and corrective action if necessary, as specified in a European Union Aviation Safety Agency EASA
AD, which is incorporated by reference.
The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD becomes effective July 12, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of July 12, 2021.
The FAA must receive comments on this AD by August 9, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202 4932251.
Mail: U.S. Department of Transportation, Docket Operations, M
30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays.
For EASA material incorporated by reference IBR in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
internet www.easa.europa.eu EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
internet www.easa.europa.eu. You may find this IBR material on the EASA
website at https ad.easa.europa.eu.
You may view the EASA material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX
76177. For information on the availability of the EASA material at the FAA, call 817 2225110. The EASA
material is also available at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0512.
You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210512; or in person at Docket
E:FRFM25JNR1.SGM

25JNR1