Proposed Rule2022-03515
Airworthiness Directives; Airbus Helicopters
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
February 18, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to supersede airworthiness directive (AD) 2021-05-05, which applies to all Airbus Helicopters Model SA-365N1, AS- 365N2, AS 365 N3, SA-366G1, EC 155B, and EC155B1 helicopters. AD 2021- 05-05 requires modifying the helicopter by replacing the tail rotor gearbox (TGB) control shaft guide bushes; repetitive inspections (checks) of the oil level of the TGB and, if necessary, filling the oil to the maximum level; repetitive inspections of the TGB magnetic plug and corrective actions if necessary; repetitive replacements of a certain control rod double bearing (bearing); and modifying the helicopter by replacing the TGB. Since the FAA issued AD 2021-05-05, the FAA determined that the magnetic plug inspection interval must be reduced and the compliance time for replacement of the affected part must be reduced. This proposed AD would continue to require certain actions in AD 2021-05-05; and would also reduce the intervals of the magnetic plug inspection, revise the corrective actions if particles are detected, and revise the compliance time for replacement of the affected part, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 34 (Friday, February 18, 2022)</title>
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[Federal Register Volume 87, Number 34 (Friday, February 18, 2022)]
[Proposed Rules]
[Pages 9277-9280]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-03515]
[[Page 9277]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0102; Project Identifier MCAI-2021-00841-R]
RIN 2120-AA64
Airworthiness Directives; Airbus Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to supersede airworthiness directive (AD)
2021-05-05, which applies to all Airbus Helicopters Model SA-365N1, AS-
365N2, AS 365 N3, SA-366G1, EC 155B, and EC155B1 helicopters. AD 2021-
05-05 requires modifying the helicopter by replacing the tail rotor
gearbox (TGB) control shaft guide bushes; repetitive inspections
(checks) of the oil level of the TGB and, if necessary, filling the oil
to the maximum level; repetitive inspections of the TGB magnetic plug
and corrective actions if necessary; repetitive replacements of a
certain control rod double bearing (bearing); and modifying the
helicopter by replacing the TGB. Since the FAA issued AD 2021-05-05,
the FAA determined that the magnetic plug inspection interval must be
reduced and the compliance time for replacement of the affected part
must be reduced. This proposed AD would continue to require certain
actions in AD 2021-05-05; and would also reduce the intervals of the
magnetic plug inspection, revise the corrective actions if particles
are detected, and revise the compliance time for replacement of the
affected part, as specified in a European Union Aviation Safety Agency
(EASA) AD, which is proposed for incorporation by reference (IBR). The
FAA is proposing this AD to address the unsafe condition on these
products.
DATES: The FAA must receive comments on this proposed AD by April 4,
2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For material that is proposed for IBR in this AD, contact the EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999
000; email: <a href="/cdn-cgi/l/email-protection#8fcecbfccfeaeefceea1eafafde0ffeea1eafa"><span class="__cf_email__" data-cfemail="e4a5a097a481859785ca8191968b9485ca8191">[email protected]</span></a>; internet: www.easa.europa.eu. You may
find this IBR material on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. You may view this material at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321,
Fort Worth, TX 76177. For information on the availability of this
material at the FAA, call (817) 222-5110. It is also available in the
AD docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2022-0102.
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> by searching for and locating Docket No. FAA-2022-
0102; 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 NPRM, the 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 FURTHER INFORMATION CONTACT: Hal Jensen, Aerospace Engineer,
Operational Safety Branch, Compliance & Airworthiness Division, FAA,
950 L'Enfant Plaza N SW, Washington, DC 20024; telephone (202) 267-
9167; email <a href="/cdn-cgi/l/email-protection#a5cdc4c98bcfc0cbd6c0cbe5c3c4c48bc2cad3"><span class="__cf_email__" data-cfemail="3850595416525d564b5d56785e5959165f574e">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2022-0102;
Project Identifier MCAI-2021-00841-R'' at the beginning of your
comments. The most helpful comments reference a specific portion of the
proposal, explain the reason for any recommended change, and include
supporting data. The FAA will consider all comments received by the
closing date and may amend this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to Hal
Jensen, Aerospace Engineer, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 950 L'Enfant Plaza N SW, Washington, DC
20024; telephone (202) 267-9167; email <a href="/cdn-cgi/l/email-protection#0a626b6624606f64796f644a6c6b6b246d657c"><span class="__cf_email__" data-cfemail="cea6afa2e0a4aba0bdaba08ea8afafe0a9a1b8">[email protected]</span></a>. Any
commentary that the FAA receives which is not specifically designated
as CBI will be placed in the public docket for this rulemaking.
Background
The FAA issued AD 2021-05-05, Amendment 39-21448 (86 FR 13972,
March 12, 2021) (AD 2021-05-05), for all Airbus Helicopters Model SA-
365N1, AS-365N2, AS 365 N3, SA-366G1, EC 155B, and EC155B1 helicopters.
AD 2021-05-05 requires repetitive checks of the oil level of the TGB
and if necessary, filling the oil to the maximum level. AD 2021-05-05
also requires modifying the helicopter by replacing the TGB control
shaft guide bushes; repetitive inspections of the TGB magnetic plug and
corrective actions if necessary; repetitive replacements of the
bearing; and modifying the helicopter by replacing the TGB. AD 2021-05-
05 was prompted by EASA AD 2017-0125, dated July 21, 2017 (EASA AD
2017-0125), issued by EASA, which is the Technical Agent for the Member
States of the European Union, to correct an unsafe condition for all
Airbus Helicopters Model SA 365 N1, AS 365 N2, AS 365 N3, SA 366 G1, EC
155 B, and EC 155 B1 helicopters. EASA AD 2017-0125 superseded EASA AD
2017-0007, dated January 13, 2017,
[[Page 9278]]
which superseded EASA AD 2016-0097R1, dated May 25, 2016.
EASA AD 2017-0125 added helicopters to the applicability, added
repetitive inspections of the magnetic plug after bearing replacement,
required the use of the revised service information instructions, and
required replacement of the TGB with a modified unit, which terminated
the repetitive inspections.
Actions Since AD 2021-05-05 Was Issued
Since the FAA issued AD 2021-05-05, EASA issued EASA AD 2021-0171,
dated July 19, 2021 (EASA AD 2021-0171), which supersedes EASA AD 2017-
0125. EASA advises that additional testing of the affected TGB
determined that the magnetic plug inspection interval must be reduced
to allow timely detection of an impending TGB bearing failure. EASA
further advises Airbus Helicopters published updated service
information, which includes the new inspection interval, and amends the
criteria for corrective action following particle detection.
Accordingly, EASA AD 2021-0171 retains the requirements of EASA
2017-0125 and requires inspection of the TGB magnetic plug at reduced
intervals, and depending on the inspection results, accomplishing the
corrective actions using the updated service information. EASA AD 2021-
0171 also revises the calendar compliance time for replacement of
affected parts, and revises the applicability by removing the reference
to Model SA 366 G1 helicopters, for which the EASA type certificate has
been surrendered.
This proposed AD was prompted by a report where during a landing
phase, a helicopter lost tail rotor pitch control, which caused
significant damage to the TGB bearing. This AD was also prompted by the
determination that reduced inspection intervals, updated corrective
actions, and a revised compliance time for replacement of affected
parts are necessary to address the unsafe condition. Furthermore, the
FAA determined that the magnetic plug inspection interval must be
reduced based on additional testing of the affected part by the
manufacturer, and the compliance time for replacement of the affected
part must be reduced.
Accordingly, the FAA is proposing this AD to prevent damage to the
bearing, which could result in loss of yaw control of the helicopter.
See EASA AD 2021-0171 for additional background information.
Related Service Information Under 1 CFR Part 51
EASA AD 2021-0171 specifies procedures for modifying the helicopter
by replacing TGB control shaft guide bushes, and specifies procedures
for repetitive inspections of the oil level of the TGB, and if
necessary, filling the oil to the maximum level. EASA AD 2021-0171 also
describes procedures for repetitive inspections of the TGB magnetic
plug for the presence of particles and updated corrective actions if
necessary (corrective actions include removing the TGB; complying with
certain work cards to address any particles found, and other conditions
such as abrasions, scales, flakes, and splinters; placing the
helicopter under close monitoring; and if required replacing any
affected bearing); initial and repetitive replacements of the bearing
with an improved part; and modifying the helicopter by replacing the
TGB bearing or replacing the TGB. EASA AD 2021-0171 specifies replacing
the TGB bearing is a terminating action for the repetitive inspections
of the magnetic plug; and replacing the TGB is a terminating action for
the repetitive inspections of the magnetic plug, and the repetitive
replacements of the bearing. EASA AD 2021-0171 also prohibits
installing a certain bearing or a certain TGB on any helicopter.
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.
Other Related Service Information
The FAA reviewed Airbus Helicopters Alert Service Bulletin No.
AS365-01.00.67 (ASB AS365-01.00.67 Rev 6) and Airbus Helicopters Alert
Service Bulletin No. EC155-04A014 (ASB EC155-04A014 Rev 6), both
Revision 6, and both dated June 14, 2021. ASB AS365-01.00.67 Rev 6 and
ASB EC155-04A014 Rev 6 both specify procedures for replacement of the
TGB bearing before mod 07 65B63 installation, inspection of the TGB
magnetic plug, removing the control shaft/rod assembly to inspect the
bearing, and maintaining the TGB operating oil at the maximum level,
and specify the monitoring criteria of the bearing.
The FAA also reviewed Eurocopter Service Bulletin AS365 No.
65.00.17, and Eurocopter Service Bulletin EC155 No. 65-006, both
Revision 1 and both dated February 23, 2011. Both service bulletins
specify instructions for introducing Eurocopter (EC) mod 07 65B58.
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
the unsafe condition described previously is likely to exist or develop
on other helicopters of the same type design.
Proposed AD Requirements
This proposed AD would retain certain actions required by AD 2021-
05-05 and would require accomplishing the actions specified in EASA AD
2021-0171 described previously, as incorporated by reference, except
for any differences as discussed under ``Differences Between this
Proposed AD and EASA AD 2021-0171.
This proposed AD would also allow the oil level inspections
(checks) to be performed by the owner/operator (pilot) holding at least
a private pilot certificate and must be entered into the aircraft
records showing compliance with this proposed AD in accordance with 14
CFR 43.9 (a)(1) through (4) and 14 CFR 91.417(a)(2)(v). The record must
be maintained as required by 14 CFR 91.417 or 135.439.
Differences Between This Proposed AD and EASA AD 2021-0171
EASA AD 2021-0171 revises the applicability by removing the
reference to Model SA 366 G1 helicopters because the EASA type
certificate has been surrendered. However, Model SA-366G1 helicopters
are still on the U.S. type certificate data sheet, even though there
are no current U.S. operators. Therefore, this proposed AD includes
Model SA-366G1 helicopters.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA initially worked with Airbus and EASA to develop a
process to use certain EASA ADs as the primary source of information
for compliance with requirements for corresponding FAA ADs. The FAA has
since coordinated with other manufacturers and civil aviation
authorities to use this process. As a result, EASA AD 2021-0171 will be
incorporated by reference in the FAA final rule. This proposed AD
would, therefore, require compliance with EASA AD 2021-0171 in its
entirety, through that incorporation, except for any differences
identified as
[[Page 9279]]
exceptions in the regulatory text of this proposed AD. Using common
terms that are the same as the heading of a particular section in the
EASA AD does not mean that operators need comply only with that
section. For example, where the AD requirement refers to ``all required
actions and compliance times,'' compliance with this AD requirement is
not limited to the section titled ``Required Action(s) and Compliance
Time(s)'' in the EASA AD. Service information specified in EASA AD
2021-0171 that is required for compliance with EASA AD 2021-0171 will
be available on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2022-0102 after the FAA final
rule is published.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 50 helicopters of U.S. Registry. Labor rates are estimated at
$85 per work-hour. Based on these numbers, the FAA estimates the
following costs to comply with this proposed AD:
Estimated Costs for Retained Required Actions
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product fleet
----------------------------------------------------------------------------------------------------------------
Replace guide bushes.............. 4.00 work-hours x $85 $1,586 $1,926 per $96,300
per hour = $340. replacement.
Daily oil level inspection........ 1.00 work-hour x $85 0 $85 per inspection 4,250
per hour = $85. cycle.
Recurring plug inspection......... 1.00 work-hour x $85 0 $85 per inspection 4,250
per hour = $85. cycle.
Inspect bearing................... 8.00 work-hours x $85 0 $680 per inspection.. 34,000
per hour = $680.
Replace bearing................... 48.00 work-hours x 377 $4,457 per 222,850
$85 per hour = replacement.
$4,080.
Replace TGB....................... 8.00 work-hours x $85 155,302 $155,982 per 7,799,100
per hour = $680. replacement.
----------------------------------------------------------------------------------------------------------------
This proposed AD does not add new required actions; however, the
compliance times for certain actions have been reduced and a certain
on-condition action has been revised.
Estimated Costs of On-Condition Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Up to 4 work-hours $85 per hour = $340.. Up to $1,395...................... Up to $1,735.
----------------------------------------------------------------------------------------------------------------
According to the manufacturer, 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 for
affected individuals. As a result, the FAA has included all costs in
the 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 has 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 responsibilities among the various levels of
government.
For the reasons discussed above, I certify that the proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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:
0
a. Removing Airworthiness Directive (AD) 2021-05-05, Amendment 39-21448
(86 FR 13972, March 12, 2021); and
0
b. Adding the following new AD:
Airbus Helicopters: Docket No. FAA-2022-0102; Project Identifier
MCAI-2021-00841-R.
[[Page 9280]]
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) action by April 4, 2022.
(b) Affected ADs
This AD replaces AD 2021-05-05, Amendment 39-21448 (86 FR 13972,
March 12, 2021) (AD 2021-05-05).
(c) Applicability
This AD applies to Airbus Helicopters Model SA-365N1, AS-365N2,
AS 365 N3, SA-366G1, EC 155B, and EC155B1 helicopters, all serial
numbers, certificated in any category.
(d) Subject
Joint Aircraft System Component (JASC) Code 6500, Tail Rotor
Drive System.
(e) Unsafe Condition
This AD was prompted by a report where during a landing phase, a
helicopter lost tail rotor pitch control, which was caused by
significant damage to the tail rotor gearbox (TGB) control rod
double bearing (bearing). This AD was also prompted by the
determination that reduced inspection intervals, updated corrective
actions, and increased compliance time for replacement of affected
parts are necessary to address the unsafe condition. The FAA is
issuing this AD to prevent damage to the bearing, which if not
addressed, could result in loss of yaw control of the helicopter.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) For Model SA-365N1, AS-365N2, AS 365 N3, EC 155B, and
EC155B1 helicopters: Except as specified in paragraph (h) of this
AD, comply with all required actions and compliance times specified
in, and in accordance with, European Union Aviation Safety Agency
(EASA) AD 2021-0171, dated July 19, 2021 (EASA AD 2021-0171).
(2) For Model SA-366G1 helicopters: Before further flight after
the effective date of this AD, accomplish the actions (e.g., modify
the helicopter by replacing the TGB control shaft guide bushes, do
repetitive inspections of the TGB magnetic plug and applicable
corrective actions; do repetitive replacements of a certain bearing;
and modify the helicopter by replacing the TGB) specified in
paragraph (g)(l) of this AD using a method approved by the FAA.
(h) Exceptions to EASA AD 2021-0171
(1) Where EASA AD 2021-0171 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where EASA AD 2021-0171 refers to flight hours (FH), this AD
requires using hours time-in-service.
(3) Where EASA AD 2021-0171 requires action after the last
flight of the day or ``ALF,'' this AD requires those actions before
the first flight of the day.
(4) This AD does not mandate compliance with the ``Remarks''
section of EASA AD 2021-0171.
(5) Where paragraph (2) of EASA AD 2021-0171 requires
inspections (checks) to be done ``in accordance with the
instructions of Paragraph 3.B.1 of the applicable inspection ASB,''
for this AD, those instructions are for reference only and are not
required for the actions in paragraph (2) of EASA AD 2021-0171. The
inspections (checks) required by paragraph (2) of EASA AD 2021-0171
may be performed by the owner/operator (pilot) holding at least a
private pilot certificate and must be entered into the aircraft
records showing compliance with this AD in accordance with 14 CFR
43.9 (a)(1) through (4) and 14 CFR 91.417(a)(2)(v). The record must
be maintained as required by 14 CFR 91.417 or 135.439.
(6) Where paragraph (5) of EASA AD 2021-0171 specifies ``if any
discrepancy is detected, as defined in the applicable inspection
ASB, before next flight, accomplish the applicable corrective
action(s) in accordance with the instructions of Paragraph 3.B.1 of
the applicable inspection ASB,'' for this AD, a qualified mechanic
must add oil to the TGB to the ``max'' level if the oil level is not
at maximum. The instructions are for reference only and are not
required for the actions in paragraph (5) of EASA AD 2021-0171.
(7) Where paragraph (6) of EASA AD 2021-0171 refers to ``any
discrepancy,'' for this AD, discrepancies include the presence of
particles and other conditions such as abrasions, scales, flakes,
and splinters.
(8) Where the service information referred to in EASA AD 2021-
0171 specifies to perform a metallurgical analysis and contact the
manufacturer if collected particles are not clearly characterized,
this AD does not require contacting the manufacturer to determine
the characterization of the particles collected.
(9) Although service information referenced in EASA AD 2021-0171
specifies to scrap parts, this AD does not include that requirement.
(10) Although service information referenced in EASA AD 2021-
0171 specifies reporting information to Airbus Helicopters, filling
in a ``particle detection'' follow-up sheet, and returning a
``bearing monitoring sheet'' to Airbus Helicopters, this AD does not
include those requirements.
(11) Although service information referenced in EASA AD 2021-
0171 specifies returning certain parts to an approved workshop and
returning certain parts to Airbus Helicopters, this AD does not
include those requirements.
(i) No Reporting Requirement
Although the service information referenced in EASA AD 2021-0171
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(j) Special Flight Permit
Special flight permits may be issued in accordance with 14 CFR
21.197 and 21.199 provided that there are no passengers onboard.
(k) 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 certification office, send it to the
attention of the person identified in paragraph (l)(2) of this AD.
Information may be emailed to: <a href="/cdn-cgi/l/email-protection#b98094f8efea94f8f0eb948e8a8994f8f4f6faf9dfd8d897ded6cf"><span class="__cf_email__" data-cfemail="3a03177b6c69177b7368170d090a177b7775797a5c5b5b145d554c">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(l) Related Information
(1) For EASA AD 2021-0171, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; phone: +49 221 8999 000; email:
<a href="/cdn-cgi/l/email-protection#99d8ddead9fcf8eaf8b7fcecebf6e9f8b7fcec"><span class="__cf_email__" data-cfemail="4100053201242032206f2434332e31206f2434">[email protected]</span></a>; internet: www.easa.europa.eu. You may find EASA
AD 2021-0171 on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. You
may view this material at the FAA, Office of the Regional Counsel,
Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX
76177. For information on the availability of this material at the
FAA, call (817) 222-5110. This material may be found in the AD
docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating
Docket No. FAA-2022-0102.
(2) For more information about this AD, contact Hal Jensen,
Aerospace Engineer, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 950 L'Enfant Plaza N SW, Washington, DC
20024; telephone (202) 267-9167; email <a href="/cdn-cgi/l/email-protection#036b626f2d69666d70666d436562622d646c75"><span class="__cf_email__" data-cfemail="2f474e4301454a415c4a416f494e4e01484059">[email protected]</span></a>.
Issued on February 11, 2022.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2022-03515 Filed 2-17-22; 8:45 am]
BILLING CODE 4910-13-P
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