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Federal Register / Vol. 86, No. 146 / Tuesday, August 3, 2021 / Proposed Rules
b Affected ADs None.
c Applicability This AD applies to Diamond Aircraft Industries GmbH Models DA 42, DA 42 NG, and DA 42 MNG airplanes, all serial numbers, certificated in any category.
d Subject Joint Aircraft System Component JASC
Code 3221, Nose/Tail Landing Gear Attach Section.
e Unsafe Condition This AD was prompted by mandatory continuing airworthiness information MCAI
originated by an aviation authority of another country to identify and address an unsafe condition on an aviation product. The MCAI
describes the unsafe condition as failure of the nose landing gear NLG actuator attachment lever and detachment from the NLG leg. The FAA is issuing this AD to detect and correct cracks in the NLG actuator attachment lever, which could result in restricted rudder travel with the NLG
retracted and reduced airplane control.
f Compliance Comply with this AD within the compliance times specified, unless already done.

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g Definition of Airworthy Part For the purposes of this AD, an airworthy part is an NLG leg assembly that has accumulated 1,800 or fewer hours time-inservice TIS since first installation on an airplane or that has passed the inspection no cracks and no damage required by paragraph h1 of this AD.
h Required Actions 1 Inspect the NLG actuator attachment lever for cracks and damage in the areas shown in paragraph 2 of the Instructions in Diamond Aircraft Work Instruction WIMSB
42136 and WIMSB 42NG078, Revision 1, dated January 24, 2019 published as one document with Mandatory Service Bulletin MSB 42136/1 and MSB 42NG078, dated January 24, 2019 at the following applicable compliance times:
i For airplanes with an NLG assembly that has accumulated less than 1,800 hours TIS as of the effective date of this AD: Within 200 hours TIS after the NLG assembly accumulates 1,800 hours TIS or within 12
months after the NLG assembly accumulates 1,800 hours TIS, whichever occurs first, and thereafter at intervals not to exceed 200 hours TIS; or ii For airplanes with an NLG assembly that has accumulated 1,800 or more hours TIS as of the effective date of this AD: Within 210 hours TIS after the effective date of this AD or within 12 months after the effective date of this AD, whichever occurs first, and thereafter at intervals not to exceed 200 hours TIS.
2 After each inspection required by paragraph h1 of this AD, if there is a crack or damage on the NLG actuator attachment lever, before further flight, replace the NLG
leg assembly with an airworthy part as defined by this AD.

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3 As of the effective date of this AD, do not install an NLG leg assembly on any airplane unless it is an airworthy part as defined by this AD.
i Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, 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 or email: 9-AVS-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.
j Related Information 1 For more information about this AD
contact Penelope Trease, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 26805 E. 68th Avenue, Denver, CO
80249; phone: 303 3421094; email:
penelope.trease@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.
2 Refer to European Union Aviation Safety Agency EASA AD No. 20190066, dated March 27, 2019, for more information.
You may examine the EASA AD in the AD
docket at https www.regulations.gov by searching for and locating Docket No. FAA
20210602.
3 For service information identified in this AD, contact the Diamond Aircraft Industries GmbH, N.A. Otto-Stra+e 5, A2700
Wiener Neustadt, Austria; phone: +43 2622
26700; fax: +43 2622 26780; email: office@
diamond-air.at; website: https
www.diamondaircraft.com. You may review this referenced 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 July 21, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202116464 Filed 8221; 8:45 am BILLING CODE 491013P

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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210615; Project Identifier MCAI202100177T
RIN 2120AA64

Airworthiness Directives; Airbus Canada Limited Partnership Type Certificate Previously Held by C Series Aircraft Limited Partnership CSALP;
Bombardier, Inc. Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

The FAA proposes to adopt a new airworthiness directive AD for certain Airbus Canada Limited Partnership Model BD5001A10 and BD5001A11 airplanes. This proposed AD was prompted by a report indicating that during production, the manual opening and closing of the over-wing emergency exit door OWEED prior to the installation of the OWEED interior panel could have resulted in damaged insulation blankets below the left and right OWEEDs. This proposed AD
would require a one-time inspection for damage of the insulation blankets below the left and right OWEEDs, and replacement if necessary, as specified in a Transport Canada Civil Aviation TCCA AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by September 17, 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: 2024932251.
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 material that will be incorporated by reference IBR in this AD, contact the TCCA, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, CANADA; telephone 8886633639;
SUMMARY:

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