Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes, 43451-43454 [2021-16558]
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Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules
(c) Applicability
This AD applies to He´licopte`res Guimbal
(HG) Model Cabri G2 helicopters, certificated
in any category, the following aluminum
cooling fan (cooling fan) part number (P/N)
installed:
(1) P/N G52–00–000,
(2) P/N G52–00–001 or P/N G52–04–100, if
it is or has previously been mounted on a 12hole engine pulley P/N G52–10–100 or P/N
G52–10–101.
(d) Subject
Joint Aircraft Service Component (JASC)
Code: 7100, Powerplant System.
(e) Unsafe Condition
This AD was prompted by reports of inflight engine shutdowns due to a crack and
subsequent failure of the cooling fan. The
FAA is issuing this AD to prevent failure of
the cooling fan. This condition, if not
addressed, could result in an in-flight engine
shut-down and loss of control of the
helicopter.
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(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
(1) For Model Cabri G2 helicopters with
cooling fan P/N G52–00–000 installed,
within 150 hours time-in-service (TIS) after
the effective date of this AD:
(i) Remove the cooling fan from service by
following the Required Actions, Cooling Fan
Removal, paragraphs (a) through (g), of
Guimbal Service Bulletin SB 16–021,
Revision E, dated August 27, 2019 (SB 16–
021 Rev E), except you are not required to
discard any parts.
(ii) Install the improved cooling fan P/N
G52–04–101 by following the Required
Actions, Cooling Fan Installation, paragraphs
(a) through (j), of SB 16–021 Rev E.
(2) For Model Cabri G2 helicopters with a
cooling fan P/N G52–00–001 or P/N G52–04–
100 that is mounted or was previously
mounted on a 12-hole engine pulley P/N
G52–10–100 or P/N G52–10–101, and with
1,500 or more total hours TIS, since first
installation on a helicopter, within 150 hours
TIS after the effective date of this AD:
(i) Remove the cooling fan from service by
following the Required Actions, Cooling Fan
Removal, paragraphs (a) through (g), of SB
16–021 Rev E, except you are not required to
discard any parts, or remove the cooling fan
by following the Required Actions, Cooling
Fan Removal, paragraphs (a) through (g), of
SB 16–021 Rev E and modify the cooling fan
by following the Required Actions, Cooling
Fan Retrofit, paragraphs (a) through (h) of SB
16–021 Rev E.
(ii) Install the improved cooling fan P/N
G52–04–101 by following the Required
Actions, Cooling Fan Installation, paragraphs
(a) through (j), of SB 16–021 Rev E.
(3) For Model Cabri G2 helicopters with a
cooling fan P/N G52–00–001 or P/N G52–04–
100 that is mounted or was previously
mounted on a 12-hole engine pulley P/N
G52–10–100 or P/N G52–10–101 and with
500 total hours TIS but with less than 1,500
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16:39 Aug 06, 2021
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total hours TIS, since first installation on a
helicopter, within 500 hours TIS after the
effective date of this AD, perform the actions
required by paragraphs (g)(2)(i) and (ii) of
this AD.
(4) For Model Cabri G2 helicopters with a
cooling fan P/N G52–00–001 or P/N G52–04–
100 that is mounted or was previously
mounted on a 12-hole engine pulley P/N
G52–10–100 or P/N G52–10–101 and with
less than 500 total hours TIS since first
installation on a helicopter, within 1,000
hours TIS after the effective date of this AD,
perform the actions required by paragraphs
(g)(2)(i) and (ii) of this AD.
(5) As of the effective date of this AD, do
not install any cooling fan listed in paragraph
(c) of this AD on any helicopter.
(h) Credit for Previous Actions
This paragraph provides credit for the
actions specified in paragraph (g) of this AD,
if those actions were performed before the
effective date of this AD using Guimbal
Service Bulletin SB 16–021, Revision D,
dated May 20, 2019.
(i) 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 (j)(1) of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
(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.
(j) Related Information
(1) For more information about this AD,
contact Andrea Jimenez, Aerospace Engineer,
COS Program Management Section,
Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 1600 Stewart
Ave., Suite 410, Westbury, NY 11590;
telephone (516) 228–7330; email
andrea.jimenez@faa.gov.
(2) For service information identified in
this AD, contact He´licopte`res Guimbal, Basile
Ginel, 1070, rue du Lieutenant Parayre,
Ae´rodrome d’Aix-en-Provence, 13290 Les
Milles, France; telephone 33–04–42–39–10–
88; email basile.ginel@guimbal.com; web
https://www.guimbal.com. You may view
this referenced service information 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.
(3) The subject of this AD is addressed in
European Union Aviation Safety Agency
(EASA) AD 2019–0187, dated July 31, 2019
and corrected August 2, 2019. You may view
the EASA AD on the internet at https://
www.regulations.gov in Docket No. FAA–
2021–0620.
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43451
Issued on July 30, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021–16684 Filed 8–6–21; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0616; Project
Identifier MCAI–2021–00256–T]
RIN 2120–AA64
Airworthiness Directives; Saab AB,
Support and Services (Formerly
Known as Saab AB, Saab Aeronautics)
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for
certain Saab AB, Support and Services
Model SAAB 340B airplanes. This
proposed AD was prompted by a report
that the circuit breaker for the
emergency cabin lighting tripped
without fault in the system. This
proposed AD would require replacing a
certain circuit breaker with a part
having a higher rating, as specified in a
European Union Aviation Safety Agency
(EASA) AD, which is proposed for
incorporation by reference. 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 September 23,
2021.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• 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.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For material that will be incorporated
by reference (IBR) in this AD, contact
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221
8999 000; email ADs@easa.europa.eu;
SUMMARY:
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Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules
internet www.easa.europa.eu. You may
find this IBR material on the EASA
website at https://ad.easa.europa.eu.
You may view this IBR material at the
FAA, Airworthiness Products Section,
Operational Safety Branch, 2200 South
216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
It is also available in the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
0616.
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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–2021–
0616; 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, any
comments received, and other
information. The street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
Shahram Daneshmandi, Aerospace
Engineer, Large Aircraft Section,
International Validation Branch, FAA,
2200 South 216th St., Des Moines, WA
98198; telephone and fax 206–231–
3220; email shahram.daneshmandi@
faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
FAA–2021–0616; Project Identifier
MCAI–2021–00256–T’’ 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 the 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 https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this proposed
AD.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
VerDate Sep<11>2014
16:39 Aug 06, 2021
Jkt 253001
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 Shahram
Daneshmandi, Aerospace Engineer,
Large Aircraft Section, International
Validation Branch, FAA, 2200 South
216th St., Des Moines, WA 98198;
telephone and fax 206–231–3220; email
shahram.daneshmandi@faa.gov. Any
commentary that the FAA receives
which is not specifically designated as
CBI will be placed in the public docket
for this rulemaking.
Background
EASA, which is the Technical Agent
for the Member States of the European
Union, has issued EASA AD 2021–0058,
dated March 1, 2021 (EASA AD 2021–
0058) (also referred to as the Mandatory
Continuing Airworthiness Information,
or the MCAI), to correct an unsafe
condition for certain Saab AB, Support
and Services Model SAAB 340B
airplanes.
This proposed AD was prompted by
a report that the 2LN circuit breaker for
the emergency cabin lighting on a SAAB
340B airplane tripped without fault in
the system. Investigation results found
that the circuit breaker 2LN has too low
a rating (5A) for maximum charging
conditions. The FAA is proposing this
AD to address the low rating of the 2LN
circuit breaker during maximum
charging conditions. This condition, if
not corrected, could lead to an
insufficiently charged emergency
battery, with consequent loss of cabin
emergency lighting, possibly resulting
in injury to occupants during an
evacuation. See the MCAI for additional
background information.
Related Service Information Under 1
CFR Part 51
EASA AD 2021–0058 describes
procedures for replacing the 2LN circuit
breaker having a rating of 5A with a new
breaker having a current rating of 7.5A.
This material is reasonably available
because the interested parties have
access to it through their normal course
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of business or by the means identified
in the ADDRESSES section.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to the
FAA’s bilateral agreement with the State
of Design Authority, the FAA has been
notified of the unsafe condition
described in the MCAI referenced
above. The FAA is proposing this AD
because the FAA evaluated all the
relevant information and determined
the unsafe condition described
previously is likely to exist or develop
in other products of the same type
design.
Proposed AD Requirements
This proposed AD would require
accomplishing the actions specified in
EASA AD 2021–0058 described
previously, as incorporated by
reference, except for any differences
identified as exceptions in the
regulatory text of this AD.
Explanation of Required Compliance
Information
In the FAA’s ongoing efforts to
improve the efficiency of the AD
process, the FAA developed a process to
use certain civil aviation authority
(CAA) ADs as the primary source of
information for compliance with
requirements for corresponding FAA
ADs. The FAA has been coordinating
this process with manufacturers and
CAAs. As a result, EASA AD 2021–0058
will be incorporated by reference in the
FAA final rule. This proposed AD
would, therefore, require compliance
with EASA AD 2021–0058 in its
entirety, through that incorporation,
except for any differences identified as
exceptions in the regulatory text of this
proposed AD. Using common terms that
are the same as the heading of a
particular section in EASA AD 2021–
0058 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 EASA AD
2021–0058. Service information
specified in EASA AD 2021–0058 that is
required for compliance with it will be
available at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0616 after the FAA final
rule is published.
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Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules
Costs of Compliance
43453
The FAA estimates the following costs
to comply with this proposed AD:
The FAA estimates that this proposed
AD affects 27 airplanes of U.S. registry.
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per
product
Cost on U.S.
operators
1 work-hour × $85 per hour = $85 ..............................................................................................
$50
$135
$3,645
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
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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
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify this 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,
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16:39 Aug 06, 2021
Jkt 253001
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new airworthiness
directive:
■
Saab AB, Support and Services (Formerly
Known as Saab AB, Saab Aeronautics):
Docket No. FAA–2021–0616; Project
Identifier MCAI–2021–00256–T.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by September
23, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Saab AB, Support and
Services (Formerly Known as Saab AB, Saab
Aeronautics) Model SAAB 340B airplanes,
certificated in any category, as identified in
European Union Aviation Safety Agency
(EASA) AD 2021–0058, dated March 1, 2021
(EASA AD 2021–0058).
(d) Subject
Air Transport Association (ATA) of
America Code 33, Lights.
(e) Reason
This AD was prompted by a report that the
circuit breaker for the emergency cabin
lighting tripped without fault in the system.
The FAA is issuing this AD to address the
low rating of the 2LN circuit breaker during
maximum charging conditions. This
condition, if not corrected, could lead to an
insufficiently charged emergency battery,
with consequent loss of cabin emergency
lighting, possibly resulting in injury to
occupants during an evacuation.
(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
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Fmt 4702
Sfmt 4702
compliance times specified in, and in
accordance with, EASA AD 2021–0058.
(h) Exceptions to EASA AD 2021–0058
(1) Where EASA AD 2021–0058 refers to its
effective date, this AD requires using the
effective date of this AD.
(2) The ‘‘Remarks’’ section of EASA AD
2021–0058 does not apply to this AD.
(i) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, Large Aircraft
Section, 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 responsible Flight
Standards Office, as appropriate. If sending
information directly to the Large Aircraft
Section, International Validation Branch,
send it to the attention of the person
identified in paragraph (j)(2) of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. Before using any
approved AMOC, notify your appropriate
principal inspector, or lacking a principal
inspector, the manager of the responsible
Flight Standards Office.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain instructions
from a manufacturer, the instructions must
be accomplished using a method approved
by the Manager, Large Aircraft Section,
International Validation Branch, FAA; or
EASA; or Saab AB, Support and Services’
EASA Design Organization Approval (DOA).
If approved by the DOA, the approval must
include the DOA-authorized signature.
(j) Related Information
(1) For information about EASA AD 2021–
0058 contact EASA, Konrad-Adenauer-Ufer
3, 50668 Cologne, Germany; telephone +49
221 8999 000; email ADs@easa.europa.eu;
internet www.easa.europa.eu. You may find
this EASA AD on the EASA website at
https://ad.easa.europa.eu. You may view this
material at the FAA, Airworthiness Products
Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195. This
material may be found in the AD docket on
the internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2021–0616.
(2) For more information about this AD,
contact Shahram Daneshmandi, Aerospace
Engineer, Large Aircraft Section,
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09AUP1
43454
Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules
International Validation Branch, FAA, 2200
South 216th St., Des Moines, WA 98198;
telephone and fax 206–231–3220; email
shahram.daneshmandi@faa.gov.
Issued on July 29, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2021–16558 Filed 8–6–21; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0543; Project
Identifier AD–2021–00353–T]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for
certain The Boeing Company Model
737–200 and –200C series airplanes.
This proposed AD was prompted by
reports of nuisance stick shaker
activation while the airplane was
accelerating to cruise speed at the top of
a climb. Investigation revealed the cause
of the activation was the angle of attack
(AOA) (also known as angle of airflow)
sensor vanes had frozen and
malfunctioned due to insufficient heat
in certain AOA sensors to prevent ice
buildup. This proposed AD would
require inspecting the AOA sensors for
certain part numbers or vane shapes,
and replacing any affected AOA sensor
with a new or serviceable sensor. 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 September 23,
2021.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• 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.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
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SUMMARY:
VerDate Sep<11>2014
16:39 Aug 06, 2021
Jkt 253001
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster
Blvd., MC 110–SK57, Seal Beach, CA
90740–5600; telephone 562–797–1717;
internet https://
www.myboeingfleet.com. You may view
this referenced service information at
the FAA, Airworthiness Products
Section, Operational Safety Branch,
2200 South 216th St., Des Moines, WA.
For information on the availability of
this material at the FAA, call 206–231–
3195. It is also available at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
0543.
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2021–0543; 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, any comments received, and
other information. The street address for
Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT:
Jeffrey W. Palmer, Aerospace Engineer,
Systems and Equipment Section, FAA,
Los Angeles ACO Branch, 3960
Paramount Boulevard, Lakewood, CA
90712–4137; phone: 562–627–5351; fax:
562–627–5210; email: jeffrey.w.palmer@
faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any
written relevant data, views, or
arguments about this proposal. Send
your comments to an address listed
under ADDRESSES. Include ‘‘Docket No.
FAA–2021–0543; Project Identifier AD–
2021–00353–T’’ 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 https://
www.regulations.gov, including any
personal information you provide. The
agency will also post a report
summarizing each substantive verbal
contact received about this NPRM.
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Sfmt 4702
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 Jeffrey W. Palmer,
Aerospace Engineer, Systems and
Equipment Section, FAA, Los Angeles
ACO Branch, 3960 Paramount
Boulevard, Lakewood, CA 90712–4137;
phone: 562–627–5351; fax: 562–627–
5210; email: jeffrey.w.palmer@faa.gov.
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 has received reports of
nuisance stick shaker activation while
the airplane was accelerating to cruise
speed at the top of a climb. Investigation
revealed the cause of the activation was
the AOA sensor vanes had frozen and
malfunctioned due to insufficient heat
in certain AOA sensors to prevent ice
buildup. This condition could be caused
by heavy moisture conditions on the
ground, leading to water entering the
AOA vane pivot and freezing prior to or
during flight. It was determined that the
potential for AOA vane pivot freezing
exists on certain AOA sensors having
part numbers used on Model 737–200
airplanes. This condition, if not
addressed, could result in the AOA
sensor vanes being immobilized, which
could result in unreliable or inaccurate
AOA sensor data being transmitted to
airplane systems, and consequent loss of
control of the airplane.
FAA’s Determination
The FAA is issuing this NPRM after
determining that the unsafe condition
described previously is likely to exist or
develop on other products of the same
type design.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing Alert
Service Bulletin 737–27A1324, dated
E:\FR\FM\09AUP1.SGM
09AUP1
]]>Agencies
[Federal Register Volume 86, Number 150 (Monday, August 9, 2021)]
[Proposed Rules]
[Pages 43451-43454]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-16558]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0616; Project Identifier MCAI-2021-00256-T]
RIN 2120-AA64
Airworthiness Directives; Saab AB, Support and Services (Formerly
Known as Saab AB, Saab Aeronautics) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Saab AB, Support and Services Model SAAB 340B airplanes.
This proposed AD was prompted by a report that the circuit breaker for
the emergency cabin lighting tripped without fault in the system. This
proposed AD would require replacing a certain circuit breaker with a
part having a higher rating, as specified in a European Union Aviation
Safety Agency (EASA) AD, which is proposed for incorporation by
reference. 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 September
23, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202-493-2251.
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.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For material that will be incorporated by reference (IBR) in this
AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email [email protected];
[[Page 43452]]
internet www.easa.europa.eu. You may find this IBR material on the EASA
website at https://ad.easa.europa.eu. You may view this IBR material at
the FAA, Airworthiness Products Section, Operational Safety Branch,
2200 South 216th St., Des Moines, WA. For information on the
availability of this material at the FAA, call 206-231-3195. It is also
available in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0616.
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-2021-
0616; 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, any comments received, and other information. The street
address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aerospace
Engineer, Large Aircraft Section, International Validation Branch, FAA,
2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-
3220; email [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2021-0616; Project Identifier
MCAI-2021-00256-T'' 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
the 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
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this proposed AD.
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
Shahram Daneshmandi, Aerospace Engineer, Large Aircraft Section,
International Validation Branch, FAA, 2200 South 216th St., Des Moines,
WA 98198; telephone and fax 206-231-3220; email
[email protected]. Any commentary that the FAA receives which
is not specifically designated as CBI will be placed in the public
docket for this rulemaking.
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2021-0058, dated March 1, 2021 (EASA
AD 2021-0058) (also referred to as the Mandatory Continuing
Airworthiness Information, or the MCAI), to correct an unsafe condition
for certain Saab AB, Support and Services Model SAAB 340B airplanes.
This proposed AD was prompted by a report that the 2LN circuit
breaker for the emergency cabin lighting on a SAAB 340B airplane
tripped without fault in the system. Investigation results found that
the circuit breaker 2LN has too low a rating (5A) for maximum charging
conditions. The FAA is proposing this AD to address the low rating of
the 2LN circuit breaker during maximum charging conditions. This
condition, if not corrected, could lead to an insufficiently charged
emergency battery, with consequent loss of cabin emergency lighting,
possibly resulting in injury to occupants during an evacuation. See the
MCAI for additional background information.
Related Service Information Under 1 CFR Part 51
EASA AD 2021-0058 describes procedures for replacing the 2LN
circuit breaker having a rating of 5A with a new breaker having a
current rating of 7.5A.
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.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to the FAA's bilateral agreement with the State of Design Authority,
the FAA has been notified of the unsafe condition described in the MCAI
referenced above. The FAA is proposing this AD because the FAA
evaluated all the relevant information and determined the unsafe
condition described previously is likely to exist or develop in other
products of the same type design.
Proposed AD Requirements
This proposed AD would require accomplishing the actions specified
in EASA AD 2021-0058 described previously, as incorporated by
reference, except for any differences identified as exceptions in the
regulatory text of this AD.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use certain civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has been
coordinating this process with manufacturers and CAAs. As a result,
EASA AD 2021-0058 will be incorporated by reference in the FAA final
rule. This proposed AD would, therefore, require compliance with EASA
AD 2021-0058 in its entirety, through that incorporation, except for
any differences identified as exceptions in the regulatory text of this
proposed AD. Using common terms that are the same as the heading of a
particular section in EASA AD 2021-0058 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 EASA AD 2021-
0058. Service information specified in EASA AD 2021-0058 that is
required for compliance with it will be available at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0616 after the FAA final rule is published.
[[Page 43453]]
Costs of Compliance
The FAA estimates that this proposed AD affects 27 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85............................. $50 $135 $3,645
----------------------------------------------------------------------------------------------------------------
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 responsibilities among the various levels of government.
For the reasons discussed above, I certify this 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 adding the following new airworthiness
directive:
Saab AB, Support and Services (Formerly Known as Saab AB, Saab
Aeronautics): Docket No. FAA-2021-0616; Project Identifier MCAI-
2021-00256-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 23, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Saab AB, Support and Services (Formerly Known
as Saab AB, Saab Aeronautics) Model SAAB 340B airplanes,
certificated in any category, as identified in European Union
Aviation Safety Agency (EASA) AD 2021-0058, dated March 1, 2021
(EASA AD 2021-0058).
(d) Subject
Air Transport Association (ATA) of America Code 33, Lights.
(e) Reason
This AD was prompted by a report that the circuit breaker for
the emergency cabin lighting tripped without fault in the system.
The FAA is issuing this AD to address the low rating of the 2LN
circuit breaker during maximum charging conditions. This condition,
if not corrected, could lead to an insufficiently charged emergency
battery, with consequent loss of cabin emergency lighting, possibly
resulting in injury to occupants during an evacuation.
(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, EASA AD 2021-0058.
(h) Exceptions to EASA AD 2021-0058
(1) Where EASA AD 2021-0058 refers to its effective date, this
AD requires using the effective date of this AD.
(2) The ``Remarks'' section of EASA AD 2021-0058 does not apply
to this AD.
(i) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Large Aircraft Section, 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 responsible Flight
Standards Office, as appropriate. If sending information directly to
the Large Aircraft Section, International Validation Branch, send it
to the attention of the person identified in paragraph (j)(2) of
this AD. Information may be emailed to: [email protected].
Before using any approved AMOC, notify your appropriate principal
inspector, or lacking a principal inspector, the manager of the
responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, Large Aircraft
Section, International Validation Branch, FAA; or EASA; or Saab AB,
Support and Services' EASA Design Organization Approval (DOA). If
approved by the DOA, the approval must include the DOA-authorized
signature.
(j) Related Information
(1) For information about EASA AD 2021-0058 contact EASA,
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221
8999 000; email [email protected]; internet www.easa.europa.eu. You
may find this EASA AD on the EASA website at https://ad.easa.europa.eu. You may view this material at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call 206-231-3195. This material may be
found in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-
2021-0616.
(2) For more information about this AD, contact Shahram
Daneshmandi, Aerospace Engineer, Large Aircraft Section,
[[Page 43454]]
International Validation Branch, FAA, 2200 South 216th St., Des
Moines, WA 98198; telephone and fax 206-231-3220; email
[email protected].
Issued on July 29, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-16558 Filed 8-6-21; 8:45 am]
BILLING CODE 4910-13-P
