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Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Proposed Rules i For airplanes with 59 or fewer months since new as of the effective date of this AD:
Within 60 months since new.
ii For airplanes with more than 59
months since new as of the effective date of this AD: Within 120 months since new.
3 For airplanes with a serial number listed as Group 2 in paragraph 1.A.2b of SB505550004R01, which are included in the effectivity of SB50555A004R5 or SB50555A004R06: Before further flight.

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n New Rudder Mass Balance Actions Groups 1 and 2
At the applicable compliance time specified in paragraph n1, 2, or 3 of this AD, clean, weigh, and, as applicable, install or replace the rudder mass-balances in accordance with Part III of the Accomplishment Instructions in SB50555
0004R01. Where steps 1c and 2c of Part III of the Accomplishment Instructions in SB505550004R01 reference criteria of the PART III, use the criteria in section 1.D. of SB505550004R01.
1 For airplanes with a serial number listed as Group 1 in paragraph 1.A.3a of SB505550004R01: At the applicable compliance time specified in paragraph n1i, ii, or iii of this AD.
i For airplanes with 59 or fewer months since new as of the effective date of this AD:
Within 60 months since new.
ii For airplanes with more than 59
months but 119 or fewer months since new as of the effective date of this AD: Within 120
months since new.
iii For airplanes with more than 119
months since new as of the effective date of this AD: Within 6 months after the effective date of this AD.
2 For airplanes with a serial number listed as Group 2 in paragraph 1.A.3b of SB505550004R01, which are not included in the effectivity of SB50555A004R5 or SB50555A004R06: At the applicable compliance time specified in paragraph n2i or ii of this AD.
i For airplanes with 59 or fewer months since new as of the effective date of this AD:
Within 60 months since new.
ii For airplanes with more than 59
months since new as of the effective date of this AD: Within 120 months since new.
3 For airplanes with a serial number listed as Group 2 in paragraph 1.A.3b of SB505550004R01, which are included in the effectivity of SB50555A004R5 or SB50555A004R06: Before further flight.
o Credit for Previous Actions 1 This paragraph provides credit for the actions required by paragraph h of this AD, if you performed those actions before July 1, 2020 the effective date of AD 20201208
using the service information specified in paragraphs o1i, ii, or iii of this AD.
i Embraer Alert Service Bulletin SB505
55A004, Revision 2, dated November 6, 2019.
ii Embraer Alert Service Bulletin SB505
55A004, Revision 3, dated November 13, 2019.
iii Embraer Alert Service Bulletin SB505
55A004, Revision 4, dated November 21, 2019.

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2 This paragraph provides credit for the actions required by paragraph h of this AD, if you performed those actions before the effective date of this AD using SB50555
A004R06.
3 This paragraph provides credit for the initial inspections required by table 2 of paragraph i of this AD, if you performed those actions before July 1, 2020 the effective date of AD 20201208 using the service information specified in paragraphs o3i, ii, or iii of this AD.
i Embraer Alert Service Bulletin SB505
55A004, Revision 2, dated November 6, 2019.
ii Embraer Alert Service Bulletin SB505
55A004, Revision 3, dated November 13, 2019.
iii Embraer Alert Service Bulletin SB505
55A004, Revision 4, dated November 21, 2019.
4 This paragraph provides credit for the initial inspections required by table 2 of paragraph i of this AD, if you performed those actions before the effective date of this AD using SB50555A004R5 or SB50555
A004R06.
5 This paragraph provides credit for the actions required by paragraphs l, m, and n of this AD, if you performed those actions before the effective date of this AD using Embraer Service Bulletin SB505550004, dated March 25, 2020.
p Alternative Methods of Compliance AMOCs 1 The Manager, General Aviation &
Rotorcraft 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 local Flight Standards District Office, as appropriate. If sending information directly to the manager of the General Aviation &
Rotorcraft Section, International Validation Branch, send it to the attention of the person identified in Related Information or email: 9AVS-AIR-730-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.
3 AMOCs approved for AD 20201208
are approved as AMOCs for the corresponding provisions of this AD.
q Related Information 1 For more information about this AD, contact Jim Rutherford, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: 816 3294165; fax: 816
3294090; email: jim.rutherford@faa.gov.
2 Refer to Mandatory Continuing Airworthiness Information MCAI Brazilian AD No. 20200901, dated September 8, 2020, for related information. You may examine the MCAI in the AD docket at https www.regulations.gov by searching for and locating Docket No. FAA20201073.
3 For service information identified in this AD, contact Phenom Maintenance
PO 00000

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Support, Avenida Brigadeiro Faria Lima, 2170, P.O. Box 36/2, Sao Jose dos Campos, 12227901, Brazil; phone: +55 12 3927 1000;
email: phenom.reliability@embraer.com.br;
website: https www.embraer.com.br/en-US/
Pages/home.aspx. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call 816 3294148.
Issued on August 31, 2021.
Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202119304 Filed 9821; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 71
Docket No. FAA20210704; Airspace Docket No. 21AWP32
RIN 2120AA66

Proposed Amendment of United States Area Navigation Route Q73 in the Vicinity of Twentynine Palms, CA
Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

This action proposes to amend United States Area Navigation RNAV route Q73 due to the creation of Special Activity Airspace SAA
Bristol Air Traffic Control Assigned Airspace ATCAA in the vicinity of Twentynine Palms, CA.
DATES: Comments must be received on or before October 25, 2021.
ADDRESSES: Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, 1200
New Jersey Avenue SE, West Building Ground Floor, Room W12140, Washington, DC 20590; telephone:
1800 6475527, or 202 3669826.
You must identify FAA Docket No.
FAA20210704; Airspace Docket No.
21AWP32 at the beginning of your comments. You may also submit comments through the internet at https www.regulations.gov.
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 Rules and Regulations Group, Federal Aviation Administration, 800
Independence Avenue SW, Washington, SUMMARY:

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