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Federal Register / Vol. 86, No. 184 / Monday, September 27, 2021 / Rules and Regulations Primus Epic system software on a helicopter after that helicopter has had the software upgrade installed.
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.

Related Service Information Under 1
CFR Part 51
EASA AD 20180002 requires installation of certain Primus Epic system software, depending on the helicopter configuration. EASA AD
20180002 allows installation of
Costs of Compliance The FAA estimates that this AD
affects 128 helicopters of U.S. registry.
The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
Software upgrade

24 work-hours $85 per hour = $2,040

The FAA has included all known costs in its cost estimate. According to the manufacturer, however, some or all of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators.

lotter on DSK11XQN23PROD with RULES1

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 under the criteria of the Regulatory Flexibility Act.

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List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
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:

20211903 Leonardo S.p.a.: Amendment 3921721; Docket No. FAA20210505;
Project Identifier 2018SW004AD.
a Effective Date This airworthiness directive AD is effective November 1, 2021.
b Affected ADs None.
c Applicability This AD applies to Leonardo S.p.a. Model AB139 and AW139 helicopters, certificated in any category, identified in paragraphs c1 and 2 of this AD, equipped with Primus Epic system software release 7.4
Phase 7 V1, 7.7 Phase 7 V3 or 7.10 Phase 7 V4.
1 Model AB139 and AW19 helicopters having serial number S/N 31005, 31006, and S/Ns 31008 through 31157 inclusive; and S/Ns 41001 through 41023 inclusive.
2 Model AW139 helicopters having S/N
31201 and subsequent, and S/N 41201 and subsequent.
d Subject Joint Aircraft Service Component JASC
Code: 2200, Auto Flight System.
e Unsafe Condition This AD was prompted by reports of spurious in-flight disconnections of the
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Cost per product
Parts cost $0

$2,040

Cost on U.S.
operators $261,120

automatic flight control system AFCS. The FAA is issuing this AD to address spurious degradation or unavailability of the full AFCS. The unsafe condition, if not addressed, could result in temporary impairment of the automated flight aid for control of the helicopter and increase the flightcrews workload.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Requirements Except as specified in paragraph h of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD 20180002, dated January 4, 2018 EASA AD 20180002.
h Exceptions to EASA AD 20180002
1 Where EASA AD 20180002 refers to flight hours FH, this AD requires using hours time-in-service.
2 Where EASA AD 20180002 refers to its effective date, this AD requires using the effective date of this AD.
3 The Remarks section of EASA AD
20180002 does not apply to this AD.
4 Where the service information referenced in EASA AD 20180002 specifies to download an option file from a certain website, that method of installation is not required by this AD.
i No Reporting Requirement Although the service information referenced in EASA AD 20180002 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
j Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, FAA, 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 International Validation Branch, send it to the attention of the person identified in paragraph k of this AD.

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