[Federal Register Volume 85, Number 79 (Thursday, April 23, 2020)]
[Proposed Rules]
[Pages 22686-22688]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-08622]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0413; Product Identifier 2017-SW-018-AD]
RIN 2120-AA64


Airworthiness Directives; Leonardo S.p.a. Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for Leonardo S.p.a. (Leonardo) Model A109E, A109S, and AW109SP 
helicopters. This proposed AD would require inspecting each fire 
extinguisher bottle for a crack. This proposed AD was prompted by a 
report of a cracked fire extinguisher bottle. The actions of this 
proposed AD are intended to address an unsafe condition on these 
helicopters.

DATES: The FAA must receive comments on this proposed AD by June 22, 
2020.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to https://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

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. FAA-2020-
0413; or in person at the Docket Operations Office between 9 a.m. and 5 
p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the European Union Aviation Safety Agency 
(previously European Aviation Safety Agency) (EASA) AD, any comments 
received, and other information. The street address for Docket 
Operations is listed above. Comments will be available in the AD docket 
shortly after receipt.
    For service information identified in this proposed rule, contact 
Leonardo,

[[Page 22687]]

Emanuele Bufano, Head of Airworthiness, Viale G.Agusta 520, 21017 
C.Costa di Samarate (Va) Italy; telephone +39-0331-225074; fax +39-
0331-229046; or at https://www.leonardocompany.com/en/home. You may 
review the referenced service information at the FAA, Office of the 
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, 
Fort Worth, TX 76177.

FOR FURTHER INFORMATION CONTACT: Eric Haight, Aviation Safety Engineer, 
Regulations and Policy Section, Rotorcraft Standards Branch, FAA, 10101 
Hillwood Pkwy., Fort Worth, TX 76177; telephone 817-222-5110; email 
[email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    The FAA invites you to participate in this rulemaking by submitting 
written comments, data, or views. The FAA also invites comments 
relating to the economic, environmental, energy, or federalism impacts 
that might result from adopting the proposals in this document. The 
most helpful comments reference a specific portion of the proposal, 
explain the reason for any recommended change, and include supporting 
data. To ensure the docket does not contain duplicate comments, 
commenters should send only one copy of written comments, or if 
comments are filed electronically, commenters should submit only one 
time.
    The FAA will file in the docket all comments received, as well as a 
report summarizing each substantive public contact with FAA personnel 
concerning this proposed rulemaking. Before acting on this proposal, 
the FAA will consider all comments received on or before the closing 
date for comments. The FAA will consider comments filed after the 
comment period has closed if it is possible to do so without incurring 
expense or delay. The FAA may change this proposal in light of the 
comments received.

Discussion

    EASA, which is the Technical Agent for the Member States of the 
European Union, has issued EASA AD No. 2016-0261R1, dated February 13, 
2020, to correct an unsafe condition for Leonardo Model A109LUH, A109E, 
A109S, and AW109SP helicopters. EASA advises that a fractured bypass 
outlet assembly (assembly), which is a component of fire extinguishing 
bottle part number (P/N) 27300-1, was found during maintenance on a 
Model AW109SP helicopter. EASA states that this condition, if not 
detected and corrected, could affect the capability of the fire 
extinguishing system to extinguish a fire in the engine area, resulting 
in damage to the helicopter and injury to any occupants. To address 
this unsafe condition, the EASA AD requires repetitive inspections of 
the assembly, and if there is a crack, replacing the fire extinguisher 
bottle. Due to similarity of design, EASA advises other helicopter 
models may be subject to the same unsafe condition.

FAA's Determination

    These helicopters have been approved by EASA and are approved for 
operation in the United States. Pursuant to the FAA's 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 an 
unsafe condition is likely to exist or develop on other helicopters of 
the same type designs.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Leonardo Helicopters Bollettino Tecnico (BT) No. 
109EP-152 for Model A109E helicopters, BT No. 109SP-108 for Model 
AW109SP helicopters, and BT No. 109S-073 for Model A109S helicopters, 
all dated December 15, 2016. The FAA also reviewed Leonardo Helicopters 
Alert Service Bulletin No. 109S-073, Revision A, dated November 23, 
2019, for Model A109S helicopters. This service information contains 
procedures for inspecting the assembly for a crack and replacing the 
fire extinguishing bottle if there is a crack.
    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.

Proposed AD Requirements

    This proposed AD would require, within 25 hours time-in-service 
(TIS) and thereafter at intervals not exceeding 200 hours TIS, 
inspecting the weld beads of each fire extinguisher bottle P/N 27300-1 
assembly for a crack. If there is a crack, the proposed AD would 
require replacing the fire extinguisher bottle before further flight. 
This proposed AD would also prohibit the installation of a fire 
extinguisher bottle P/N 27300-1 on any helicopter unless it has met the 
requirements of this AD.

Differences Between This Proposed AD and the EASA AD

    The EASA AD applies to Model A109LUH helicopters; this proposed AD 
does not as that model helicopter is not type certificated in the U.S.

Interim Action

    The FAA considers this proposed AD to be an interim action. If 
final action is later identified, the FAA might consider further 
rulemaking.

Costs of Compliance

    The FAA estimates that this proposed AD would affect 107 
helicopters of U.S. Registry. The FAA estimates that operators may 
incur the following costs in order to comply with this proposed AD. 
Labor costs are estimated at $85 per work-hour.
    Inspecting both assemblies would require about 2 work-hours, for a 
estimated cost of $170 per helicopter and $18,190 for the U.S fleet, 
per inspection cycle.
    Replacing a fire extinguishing bottle would require about 3 work-
hours and parts would cost about $6,432, for an estimated cost of 
$6,687 per helicopter.
    According to Leonardo's service information, some of the costs of 
this proposed AD may be covered under warranty, thereby reducing the 
cost impact on affected individuals. The FAA does not control warranty 
coverage by Leonardo. Accordingly, the FAA has included all costs in 
this cost estimate.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's 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 Agency's 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

    The FAA determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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

[[Page 22688]]

responsibilities among the various levels of government.
    For the reasons discussed, I certify this proposed regulation:
    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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

Leonardo S.p.a.: Docket No. FAA-2020-0413; Product Identifier 2017-
SW-018-AD.

(a) Applicability

    This AD applies to Leonardo S.p.a. Model A109E, Model A109S, and 
Model AW109SP helicopters, certificated in any category, with a fire 
extinguisher bottle part number (P/N) 27300-1 installed.

    Note 1 to paragraph (a) of this AD:  Fire extinguisher bottle P/
N 27300-1 may be installed as part of fire extinguisher kit P/N 109-
0811-39-103, P/N 109-0811-39-107, or P/N 109-0811-39-109.

(b) Unsafe Condition

    This AD defines the unsafe condition as a crack on a fire 
extinguisher bottle bypass outlet assembly. This condition could 
result in failure of the fire extinguishing system in the event of a 
fire in the engine area and subsequent loss of control of the 
helicopter.

(c) Comments Due Date

    The FAA must receive comments by June 22, 2020.

(d) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(e) Required Actions

    (1) Within 25 hours time-in-service (TIS) and thereafter at 
intervals not to exceed 200 hours TIS, using a mirror and a light, 
inspect the weld beads of each fire extinguisher bottle bypass 
outlet assembly for a crack in the areas depicted in Figure 2 of 
Leonardo Helicopters Bollettino Tecnico (BT) No. 109EP-152, BT No. 
109S-073, or BT No. 109SP-108, each dated December 15, 2016, or 
Alert Service Bulletin No. 109S-073 Revision A, dated November 23, 
2018, as applicable to your model helicopter. Pay particular 
attention to each circled area. If there is a crack, before further 
flight, replace the fire extinguisher bottle.
    (2) After the effective date of this AD, do not install a fire 
extinguisher bottle P/N 27300-1 on any helicopter unless it has been 
inspected as required by paragraph (e)(1) of this AD.

(f) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Safety Management Section, Rotorcraft Standards 
Branch, FAA, may approve AMOCs for this AD. Send your proposal to: 
Eric Haight, Aviation Safety Engineer, Regulations and Policy 
Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., 
Fort Worth, TX 76177; telephone 817-222 5110; email [email protected].
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, the FAA suggests 
that you notify your principal inspector, or lacking a principal 
inspector, the manager of the local flight standards district office 
or certificate holding district office before operating any aircraft 
complying with this AD through an AMOC.

(g) Additional Information

    The subject of this AD is addressed in European Union Aviation 
Safety Agency (previously European Aviation Safety Agency) (EASA) AD 
No. 2016-0261R1, dated February 13, 2020. You may view the EASA AD 
on the internet at https://www.regulations.gov in the AD Docket.

(h) Subject

    Joint Aircraft Service Component (JASC) Code: 2620, 
Extinguishing System.

    Issued on April 17, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2020-08622 Filed 4-22-20; 8:45 am]
 BILLING CODE 4910-13-P