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Federal Register / Vol. 86, No. 187 / Thursday, September 30, 2021 / Rules and Regulations
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210726; Project Identifier 2019CE059AD; Amendment 3921724; AD 20211906
RIN 2120AA64

Airworthiness Directives; RUAG
Aerospace Services GmbH Type Certificate Previously Held by Dornier Luftfahrt GmbH Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

LOTTER on DSK11XQN23PROD with RULES1

Examining the AD Docket
The FAA is superseding Airworthiness Directive AD 200702
13, which applied to certain Dornier Luftfahrt GmbH type certificate currently held by RUAG Aerospace Services GmbH Model Dornier 228212
airplanes. AD 20070213 required inspecting the landing gear carbon brake assembly. This AD requires inspecting certain carbon brake assemblies and corrective actions if necessary. This AD
was prompted by mandatory continuing airworthiness information MCAI
issued by the European Union Aviation Safety Agency EASA to correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as loose bolts and nuts on the landing gear carbon brake assembly. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective October 15, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of October 15, 2021.
The FAA must receive any comments on this AD by November 15, 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 service information identified in this final rule, contact RUAG Aerospace SUMMARY:

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Services GmbH, Dornier 228 Customer Support, P.O. Box 1253, 82231
Wessling, Federal Republic of Germany;
phone: +49 0 8153302280; fax: +49
0 8153303030; email:
custsupport.dornier228@ruag.com;
website: https www.ruag.com/. 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. It is also available at https www.regulations.gov by searching for and locating Docket No.
FAA20210726.

You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210726; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the MCAI, any comments received, and other information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:

Doug Rudolph, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: 816
3294059; fax: 816 3294090; email:
doug.rudolph@faa.gov.
SUPPLEMENTARY INFORMATION:

Comments Invited The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under ADDRESSES.
Include Docket No. FAA20210726;
Project Identifier 2019CE059AD at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data.
The FAA will consider all comments received by the closing date and may amend this final rule because of those comments.
Except for Confidential Business Information CBI as described in the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to https
www.regulations.gov, including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this final rule.

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Confidential Business Information CBI is commercial or financial information that is both customarily and actually treated as private by its owner.
Under the Freedom of Information Act FOIA 5 U.S.C. 552, CBI is exempt from public disclosure. If your comments responsive to this AD contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this AD, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as PROPIN. The FAA
will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this AD. Submissions containing CBI
should be sent to Doug Rudolph, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO.
Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking.
Background The FAA issued AD 20070213, Amendment 3914900 72 FR 3355, January 25, 2007 AD 20070213, for certain serial-numbered Dornier Luftfahrt GmbH type certificate now held by RUAG Aerospace Services GmbH Model 228212 airplanes. AD
20070213 required inspecting the landing gear carbon brake assembly and replacing if necessary. AD 20070213
resulted from AD No. 20060352E, dated November 24, 2006, issued by EASA, which is the Technical Agent for the Member States of the European Union. The FAA issued AD 20070213
to prevent the brake assembly from detaching and malfunctioning, degrading brake performance, and potentially causing loss of control of the airplane during landing or rollout.
Actions Since AD 20070213 Was Issued Since the FAA issued AD 200702
13, EASA superseded its AD and issued EASA AD 20190307, dated December 18, 2019 referred to after this as the MCAI, to address an unsafe condition on all RUAG Aerospace Services GmbH
formerly Dornier Luftfahrt GmbH
Model Dornier 228212 airplanes. The MCAI states:
During a maintenance inspection, loose bolts and nuts were detected on the landing gear carbon brake assembly.
This condition, if not detected and corrected, could result in detachment of the brake assembly and subsequent malfunction,
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