Quiero saber acerca de...

33104

Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Rules and Regulations
For material incorporated by reference IBR in this AD, contact the 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 information on the EASA website at https ad.easa.europa.eu. For service information identified in this final rule, contact Airbus Helicopters, 2701 N
Forum Drive, Grand Prairie, TX 75052;
telephone 972 6410000 or 800 232
0323; fax 972 6413775; or at http
www.airbushelicopters.com/techpub.
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. It is also available in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210254.

ADDRESSES:

Examining the AD Docket You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0254; 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, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Blaine Williams, Aerospace Engineer, Los Angeles ACO Branch, Compliance &
Airworthiness Division, 3960
Paramount Blvd., Lakewood, CA 90712;
telephone 5626275371; email blaine.williams@faa.gov.
SUPPLEMENTARY INFORMATION:

khammond on DSKJM1Z7X2PROD with RULES

Background The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20190305, dated December 17, 2019
EASA AD 20190305, to correct an unsafe condition for all Airbus Helicopters Deutschland GmbH Model MBBBK117 D2 helicopters.
The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to all Airbus Helicopters Deutschland GmbH Model MBBBK117
D2 helicopters. The NPRM published in the Federal Register on April 2, 2021

VerDate Sep<11>2014

16:01 Jun 23, 2021

Jkt 253001

86 FR 17330. The NPRM was prompted by reports of chafing marks on the wiring harness behind the middle side panels in the area of the front PAX panels. The NPRM proposed to require inspecting, modifying, and rerouting the wiring harness, as specified in the EASA AD.
The FAA is issuing this AD to prevent electrical failure of the helicopter wiring harness. See the EASA AD for additional background information.
Discussion of Final Airworthiness Directive Comments The FAA gave the public the opportunity to participate in developing this final rule. The FAA received no comments on the NPRM or on the determination of the cost to the public.
Conclusion The FAA reviewed the relevant data and determined that air safety and the public interest require adopting this final rule as proposed.
Related Service Information Under 1
CFR Part 51
EASA AD 20190305 specifies inspecting the wiring harness installed behind the front PAX panel of the left and right hand middle side panels and depending on the results, repairing or modifying the wiring harness. For a modified wiring harness, EASA AD
20190305 specifies repetitively inspecting for damage.
The FAA also reviewed Airbus Helicopters Alert Service Bulletin ASB
MBBBK117 D288A003, Revision 1
and dated December 9, 2019 ASB
MBBBK117 D288A003. ASB
MBBBK117 D288A003 applies to Model MBBBK117 D2 and D2m helicopters. This service information specifies inspecting, repairing, and modifying the wiring harness installed behind the front PAX panel of the left and right hand middle side panels. 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.
Differences Between This AD and the EASA AD
Where the EASA AD refers to flight hours, this AD uses hours time-inservice TIS instead. Where the EASA
AD allows a tolerance to the compliance time of certain initial and repetitive inspections, this AD requires a compliance time of within 440 hours TIS after modification of an affected part for a certain initial inspection and thereafter at intervals within 440 hours
PO 00000

Frm 00024

Fmt 4700

Sfmt 4700

TIS for certain repetitive inspections instead. Where the EASA AD requires repetitive inspections in accordance with paragraph 3.B.8. of ASB MBB
BK117 D288A003, this AD requires repetitive inspections in accordance with paragraph 3.B.9. of ASB MBB
BK117 D288A003.
Costs of Compliance The FAA estimates that this AD
affects 60 helicopters of U.S. Registry.
Labor rates are estimated at $85 per work-hour. Based on these numbers, the FAA estimates that operators may incur the following costs in order to comply with this AD. Inspecting the wiring harness takes about 6 work-hours for an estimated cost of $510 per helicopter and $30,600 for the U.S. fleet, per inspection cycle. Modification during the inspection of the wiring harness takes about 6 work-hours for an estimated cost of $510 per helicopter.
Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more detail the scope of the Agencys authority.
The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA
with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce.
This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.
Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.
For the reasons discussed above, I
certify that this AD:
1 Is not a significant regulatory action under Executive Order 12866, 2 Will not affect intrastate aviation in Alaska, and 3 Will not have a significant economic impact, positive or negative, on a substantial number of small entities
E:FRFM24JNR1.SGM

24JNR1