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Federal Register / Vol. 86, No. 47 / Friday, March 12, 2021 / Rules and Regulations
Comments The FAA gave the public the opportunity to participate in developing this final rule, but the agency did not receive any 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, except for minor editorial changes. The FAA has determined that these minor changes:
Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM.
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 of the unsafe condition described in its AD. The FAA is issuing this AD
after evaluating all of the information provided by EASA and determining the unsafe condition exists and is likely to exist or develop on other helicopters of these same type designs and that air safety and the public interest require adopting the AD requirements as proposed.
Differences Between This AD and the EASA AD
The EASA AD uses compliance times in terms of calendar dates, whereas this AD uses compliance times terms of in hours TIS.
Related Service Information Under 1
CFR Part 51
The FAA has reviewed Leonardo Helicopters Emergency Alert Service Bulletin EASB No. 109S079, and Leonardo Helicopters EASB No. 109SP
120, each Revision A, and each dated June 4, 2018. This service information specifies instructions for manufacturing a placard for the baggage compartment door and also specifies instructions for modifying and inserting a specific cutout into the existing RFM. This service information also specifies instructions for removing the baggage fairing assembly fwd up and the rubber protections, inspecting the cable assemblies routing of both circuit breaker panels, and inspecting the installation of the terminal lugs.
The FAA also reviewed Leonardo Helicopters EASB No. 109SP122, and Leonardo Helicopters EASB No. 109S

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081, each dated July 5, 2018, which specify procedures for modifying the helicopter by incorporating protective coverings.
This service information 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.
Costs of Compliance The FAA estimates that this AD
affects 15 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.
Installing a placard and revising the existing RFM for your helicopter takes about 1 work-hour for an estimated cost of $85 per helicopter and $1,275 for the U.S. fleet.
Inspecting the installation of the terminal lugs, shimming the baggage fairing assembly fwd up, and installing a silicon rubber protection over the blind rivets takes about 3 work-hours for an estimated cost of $255 per helicopter.
Removing the baggage fairing assembly fwd up, removing the rubber protections, and performing a repetitive inspection of the cable assemblies of both circuit breaker panels for damage takes about 2 work-hours for an estimated cost of $170 per helicopter per inspection cycle and $2,550 for the U.S. fleet per inspection cycle.
Repairing a cable assembly takes about 4 work-hours and parts would cost about $340 for an estimated cost of $680 per repair.
Modifying the helicopter by installing protective coverings takes about 4 workhours and parts would cost about $20
for an estimated cost of $360 per helicopter and $5,400 for the U.S. fleet.
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
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unsafe condition that is likely to exist or develop on helicopters 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 under the criteria of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20210504 Leonardo S.p.a.: Amendment 3921447; Docket No. FAA20201139;
Product Identifier 2018SW056AD.
a Applicability This airworthiness directive AD applies to Leonardo S.p.a. Model A109S helicopters, serial number S/N 22702, 22703, 22705, and 22706 and AW109SP helicopters with S/N up to 22386 inclusive, except S/N 22375 and S/N 22376, certificated in any category.
b Unsafe Condition This AD defines the unsafe condition as chafing of electrical wiring. This condition could result in fire ignition and smoke in the baggage compartment and subsequent loss of control of the helicopter.
c Effective Date This AD becomes effective April 16, 2021.

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