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Federal Register / Vol. 86, No. 163 / Thursday, August 26, 2021 / Proposed Rules 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 this 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 this 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
0697.
Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210697; 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 NPRM, the EASA AD, any comments received, and other information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:

Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600
Stewart Ave., Suite 410, Westbury, NY
11590; telephone 516 2287330; email andrea.jimenez@faa.gov.
SUPPLEMENTARY INFORMATION:

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Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under ADDRESSES. Include Docket No.
FAA20210697; Project Identifier MCAI202001540 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 proposal 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 NPRM.

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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 NPRM
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 NPRM, 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 NPRM. Submissions containing CBI
should be sent to Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 1600
Stewart Ave., Suite 410, Westbury, NY
11590; telephone 516 2287330; email andrea.jimenez@faa.gov. Any commentary that the FAA receives that is not specifically designated as CBI will be placed in the public docket for this rulemaking.
Background EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 20200256, dated November 17, 2020 EASA AD
20200256, to correct an unsafe condition for Leonardo S.p.A., formerly Finmeccanica S.p.A., AgustaWestland S.p.A., and Agusta S.p.A., Model A109E
helicopters, serial numbers 11001
through 11674 inclusive.
This proposed AD was prompted by reports of cracking in the center fuselage frame assembly in the intersection of the lateral pylon and floor spar at STA 1815
on the leftand right-hand sides. The FAA is proposing this AD to address cracking in the center fuselage frame assembly in the intersection of the lateral pylon and floor spar at STA 1815
on the leftand right-hand sides, which, if not addressed, could affect the structural integrity of the helicopter. See EASA AD 20200256 for additional background information.
Related Service Information Under 1
CFR Part 51
EASA AD 20200256 requires repetitive inspections of STA 1815 for cracking, fluorescent liquid penetrant inspections of any cracking to determine the extent of the cracking, and repair if necessary. For both the leftand right-

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hand side repair, the actions include removing equipment and furnishings to gain access to the work area; testing the flight control system for correct travel of the flight controls; performing an operational test of the cockpit and passenger doors caution system;
installing a new forward cap; installing a new angle, butt strap, and web;
installing new cotter pins; and reinstalling the removed equipment and furnishings when the repair is complete.
For the left-hand side repair, the actions also include replacing the nut plates with new nut plates, and an operational test of the collective control system and tail rotor control system. For the right-hand side repair, the actions include an operational test of the cyclic control system.
This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section.
FAAs Determination These helicopters have been approved by EASA and are approved for operation in the United States. Pursuant to the FAAs bilateral agreement with the European Union, EASA has notified the FAA about the unsafe condition described in its AD. The FAA is proposing this AD after evaluating all known relevant information and determining that the unsafe condition described previously is likely to exist or develop on other helicopters of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified in EASA AD 20200256, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this proposed AD and except as discussed under Differences Between this Proposed AD and the MCAI.
Differences Between This Proposed AD
and the MCAI
EASA AD 20200256 specifies to accomplish corrective actions if any crack is detected in an affected area during a required inspection. Figure 1 of the service information referenced in EASA AD 20200256 depicts the affected area, but the FWD bulkhead is mislabeled as AFT. This proposed AD
includes an exception to clarify the correct location of the FWD bulkhead depicted in Figure 1.

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