AD 2015-11-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | AB412 | Airworthiness Directives; Agusta S.p.A. Helicopters |
| aircraft | Agusta S.p.A. | AB412 EP | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
A crack in the tail rotor (T/R) drive shaft flanged adapter, which could result in failure of the T/R drive shaft and reduced control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the tail rotor (T/R) drive shaft flanged adapter (part numbers 412-040-622-101 and 412-040-623-101) for cracks. Remove the adapter from service if a crack is found. Visually inspect the adapter before installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight if a crack is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Agusta S.p.A. Model AB412 helicopters with serial numbers 25801 through 25900, and Model AB412 EP helicopters with serial numbers 25901 and larger.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for certain Agusta S.p.A. Model AB412 and AB412 EP helicopters. This AD requires inspecting the tail rotor (T/R) drive shaft flanged adapter (adapter) for a crack and removing the adapter from service if there is a crack. This AD is prompted by a report of a crack found in an adapter. These actions are intended to detect a crack in the adapter and prevent failure of the T/R drive shaft, which could result in reduced control of the helicopter.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 80, Number 110 (Tuesday, June 9, 2015)]
[Rules and Regulations]
[Pages 32451-32453]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2015-13343]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2015-1936; Directorate Identifier 2014-SW-005-AD;
Amendment 39-18170; AD 2015-11-07]
RIN 2120-AA64
Airworthiness Directives; Agusta S.p.A. Helicopters
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Agusta S.p.A. Model AB412 and AB412 EP helicopters. This AD requires
inspecting the tail rotor (T/R) drive shaft flanged adapter (adapter)
for a crack and removing the adapter from service if there is a crack.
This AD is prompted by a report of a crack found in an adapter. These
actions are intended to detect a crack in the adapter and prevent
failure of the T/R drive shaft, which could result in reduced control
of the helicopter.
DATES: This AD becomes effective June 24, 2015.
The Director of the Federal Register approved the incorporation by
reference of a certain document listed in this AD as of June 24, 2015.
We must receive comments on this AD by August 10, 2015.
ADDRESSES: You may send comments by any of the following methods:
<bullet> Federal eRulemaking Docket: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the online instructions for sending your
comments electronically.
<bullet> Fax: 202-493-2251.
<bullet> 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.
<bullet> 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a> 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 AD, the European Aviation Safety
Agency (EASA) Emergency AD (EAD), any incorporated by reference service
information, any comments received, and other information. The street
address for the Docket Operations Office (telephone 800- 647-5527) is
in the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
For service information identified in this AD, contact
AgustaWestland, Product Support Engineering, Via del Gregge, 100, 21015
Lonate Pozzolo (VA) Italy, ATTN: Maurizio D'Angelo; telephone 39-0331-
664757; fax 39-0331-664680; or at <a href="http://www.agustawestland.com/technical-bulletins">http://www.agustawestland.com/technical-bulletins</a>. You may review the referenced service information
at the FAA, Office of the Regional Counsel, Southwest Region, 2601
Meacham Blvd., Room 663, Fort Worth, Texas 76137. It is also available
on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> in Docket No. FAA-2015-
1936.
FOR FURTHER INFORMATION CONTACT: Robert Grant, Aviation Safety
Engineer, Safety Management Group, FAA, 2601 Meacham Blvd., Fort Worth,
Texas 76137; telephone (817) 222-5110; email <a href="/cdn-cgi/l/email-protection#5b2934393e292f753c293a352f1b3d3a3a753c342d"><span class="__cf_email__" data-cfemail="5d2f323f382f29733a2f3c33291d3b3c3c733a322b">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not provide you with notice and an opportunity to
provide your comments prior to it becoming effective. However, we
invite you to participate in this rulemaking by submitting written
comments, data, or views. We also invite comments relating to the
economic, environmental, energy, or federalism impacts that resulted
from adopting this AD. The most helpful comments reference a specific
portion of the AD, 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 them only one time. We will file in the docket all comments that
we receive, as well as a report summarizing each substantive public
contact with FAA personnel concerning this rulemaking during the
comment period. We will consider all the comments we receive and may
conduct additional rulemaking based on those comments.
Discussion
This AD action was prompted by EAD No. 2014-0040-E, dated February
19, 2014, issued by EASA, which is the Technical Agent for the Member
States of the European Union, to correct an unsafe condition for
certain AgustaWestland S.p.A. Model AB 412 and AB 412 EP helicopters.
EASA advises that a crack was found in an adapter, part number (P/N)
412-040-622-101, installed on a Model AB 412 EP helicopter. EASA
further advises that the condition, if not detected and corrected,
could lead to T/R drive shaft failure, possibly resulting in reduced
control of the helicopter. To address this unsafe condition, the EASA
EAD requires repetitive inspections of adapters, P/N 412-040-622-101
and P/N 412-040-623-101, for a crack and replacing a cracked adapter.
EASA also requires reporting and sending the cracked adapter to
AgustaWestland for investigation.
FAA's Determination
These helicopters have been approved by the aviation authority of
Italy and are approved for operation in the United States. Pursuant to
our bilateral agreement with Italy, the EASA, its technical
representative, has notified us of the unsafe condition described in
the EASA AD. We are issuing this AD because we evaluated all
information provided by the EASA and determined the unsafe condition
exists and is likely to exist or develop on other helicopters of these
same type designs.
[[Page 32452]]
Related Service Information Under 1 CFR Part 51
AgustaWestland issued Bollettino Tecnico No. 412-139, dated
February 19, 2014 (BT), for Model AB412 helicopters serial number (S/N)
25801 through 25900, and Model AB412EP helicopters S/N 25901 and
subsequent. The BT states AgustaWestland received a report of a crack
in an adapter, P/N 412-040-622-101, installed on a Model AB412EP
helicopter. The BT also states that the investigation to determine the
root causes of the crack is in progress and the BT may be revised
according to the investigation results. The BT specifies a one-time
inspection of the adapter, P/N 412-040-622-101 and P/N 412-040-623-101,
for the presence of cracks, and if there is a crack, replacing the
drive shaft assembly. The BT also specifies reporting a cracked adapter
and sending affected parts to AgustaWestland. 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 of this AD.
AD Requirements
This AD requires an initial and recurring visual inspection of the
adapter, P/N 412-040-622-101 and P/N 412-040-623-101, installed on
certain Model AB412 and AB412 EP helicopters. If there is a crack in an
adapter, this AD requires removing the adapter from service before
further flight. This AD also requires visually inspecting an adapter
before installation.
Differences Between This AD and the EASA EAD
The EASA EAD requires reporting and sending any cracked adapter to
AgustaWestland, whereas this AD does not.
Interim Action
We consider this AD to be an interim action. If final action is
later identified, we might consider further rulemaking then.
Costs of Compliance
There are no costs of compliance with this AD because there are no
helicopters with this type certificate on the U.S. Registry.
FAA's Justification and Determination of the Effective Date
There are no helicopters with this type certificate on the U.S.
Registry. Therefore, we believe it is unlikely that we will receive any
adverse comments or useful information about this AD from U.S.
Operators.
Since an unsafe condition exists that requires the immediate
adoption of this AD, we determined that notice and opportunity for
public comment before issuing this AD are unnecessary because there are
none of these helicopters on the U.S. Registry and that good cause
exists for making this amendment effective in less than 30 days.
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.
We are 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
We determined that 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, I certify that this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in Alaska to the extent that
it justifies making a regulatory distinction; and
4. 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 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):
2015-11-07 Agusta S.p.A.: Amendment 39-18170; Docket No. FAA-2015-
1936; Directorate Identifier 2014-SW-005-AD.
(a) Applicability
This AD applies to Model AB412 helicopters with a serial number
(S/N) 25801 through 25900, and Model AB412 EP helicopters with a S/N
25901 and larger, certificated in any category.
(b) Unsafe Condition
This AD defines the unsafe condition as a crack in a tail rotor
(T/R) drive shaft flanged adapter. This condition could result in
failure of the T/R drive shaft and reduced control of the
helicopter.
(c) Effective Date
This AD becomes effective June 24, 2015.
(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 5 hours time-in-service (TIS) and thereafter at
intervals not to exceed 100 hours TIS, using a 5X power magnifying
glass and a light source, visually inspect each flanged adapter,
part number (P/N) 412-040-622-101 and P/N 412-040-623-101, for a
crack as shown in Figures 1 and 2 of AgustaWestland Bollettino
Tecnico No. 412-139, dated February 19, 2014.
(2) If there is a crack in a flanged adapter, before further
flight, remove the flanged adapter from service.
(3) Do not install a flanged adapter, P/N 412-040-622-101 or P/N
412-040-623-101, unless it has been inspected in accordance with the
requirements of paragraphs (e)(1) and (e)(2) of this AD.
(f) Special Flight Permits
Special flight permits are prohibited.
(g) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Safety Management Group, FAA, may approve AMOCs
for this AD. Send your proposal to: Robert Grant, Aviation Safety
Engineer, Safety Management Group, FAA, 2601 Meacham Blvd., Fort
Worth, Texas 76137; telephone (817) 222-5110; email
<a href="/cdn-cgi/l/email-protection#b6c4d9d4d3c4c298d1c4d7d8c2f6d0d7d798d1d9c0"><span class="__cf_email__" data-cfemail="f0829f92958284de9782919e84b0969191de979f86">[email protected]</span></a>.
[[Page 32453]]
(2) For operations conducted under a 14 CFR part 119 operating
certificate or under 14 CFR part 91, subpart K, we suggest 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.
(h) Additional Information
The subject of this AD is addressed in European Aviation Safety
Agency (EASA) Emergency AD (EAD) No. 2014-0040-E, dated February 19,
2014. You may view the EASA EAD on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> in Docket No. FAA-2015-1936.
(i) Subject
Joint Aircraft Service Component (JASC) Code: 6510, Tail Rotor
Drive Shaft.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) AgustaWestland Bollettino Tecnico No. 412-139, dated
February 19, 2014.
(ii) Reserved.
(3) For AgustaWestland service information identified in this
AD, contact AgustaWestland, Product Support Engineering, Via del
Gregge, 100, 21015 Lonate Pozzolo (VA) Italy, ATTN: Maurizio
D'Angelo; telephone 39-0331-664757; fax 39-0331-664680; or at <a href="http://www.agustawestland.com/technical-bulletins">http://www.agustawestland.com/technical-bulletins</a>.
(4) You may view this service information at FAA, Office of the
Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663,
Fort Worth, Texas 76137. For information on the availability of this
material at the FAA, call (817) 222-5110.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call (202) 741-6030, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Fort Worth, Texas, on May 26, 2015.
Lance T. Gant,
Acting Directorate Manager, Rotorcraft Directorate, Aircraft
Certification Service.
[FR Doc. 2015-13343 Filed 6-8-15; 8:45 am]
BILLING CODE 4910-13-P
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