Airworthiness Directives; The Boeing Company Airplanes, 16010-16013 [2018-07632]
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16010
Proposed Rules
Federal Register
Vol. 83, No. 72
Friday, April 13, 2018
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF AGRICULTURE
Agricultural Marketing Service
7 CFR Part 205
[Doc. No. AMS–NOP–14–0079; NOP–14–05]
RIN 0581–AD44
National Organic Program (NOP);
Amendments to the National List of
Allowed and Prohibited Substances
(Crops, Livestock and Handling);
Reopening of Comment Period
AGENCY:
Agricultural Marketing Service,
USDA.
ACTION: Proposed rule; Reopening of the
public comment period.
The Agricultural Marketing
Service (AMS) published a proposed
rule in the Federal Register on January
18, 2018, which describes 35
amendments to the National List of
Allowed and Prohibited Substances
(Crops, Livestock and Handling). The
public comment period closed on March
19, 2018. This document reopens the
comment period on the proposed rule
for an additional 30 days. Multiple
stakeholders requested that AMS extend
the comment period to provide more
time to develop comments on the
proposed rule.
DATES: Comments must be received by
May 14, 2018.
ADDRESSES: Interested parties may
submit written comments on the
Amendments to the National List of
Allowed and Prohibited Substances
(Crops, Livestock and Handling)
proposed rule using one of the following
methods:
• Federal eRulemaking Portal: https://
www.regulations.gov. Follow the
instructions for submitting comments.
• Mail: Robert Pooler, Standards
Division, National Organic Program,
USDA–AMS–NOP, Room 2646–So., Ag
Stop 0268, 1400 Independence Ave.
SW, Washington, DC 20250–0268.
Instructions: All submissions received
must include the docket number AMS–
NOP–14–0079; NOP–14–05PR, and/or
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SUMMARY:
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Regulatory Information Number (RIN)
0581–AD60 for this rulemaking.
Commenters should identify the topic
and section of the proposed rule to
which their comment refers. All
commenters should refer to the
GENERAL INFORMATION section in
the Notice of Proposed Rulemaking for
more information on preparing your
comments. All comments received will
be posted without change to https://
www.regulations.gov.
Docket: For access to the docket,
including background documents and
comments received, go to https://
www.regulations.gov. Comments
submitted in response to this proposed
rule will also be available for viewing in
person at USDA–AMS, National Organic
Program, Room 2642–South Building,
1400 Independence Ave. SW,
Washington, DC, from 9 a.m. to 12 noon
and from 1 p.m. to 4 p.m., Monday
through Friday (except official Federal
holidays). Persons wanting to visit the
USDA South Building to view
comments received in response to this
proposed rule are requested to make an
appointment in advance by calling (202)
720–3252.
FOR FURTHER INFORMATION CONTACT:
Robert Pooler, Standards Division.
Telephone: (202) 720–3252; Fax: (202)
260–9151.
SUPPLEMENTARY INFORMATION: This
document reopens the public comment
period for the proposed rule published
in the Federal Register on January 18,
2018 (83 FR 2498), Amendments to the
National List of Allowed and Prohibited
Substances (Crops, Livestock and
Handling). In the proposed rule, AMS
solicits public comments generally and
requests comments on specific topics.
AMS is reopening the comment period,
which ended on March 19, 2018, for 30
days based on multiple stakeholder
requests that AMS extend the comment
period to provide more time to develop
comments on the proposed rule.
AMS is proposing to amend the
National List of Allowed and Prohibited
Substances by: Changing the use
restrictions for seventeen substances
allowed for organic production or
handling; adding sixteen new
substances for use in organic production
or handling; listing rotenone as a
prohibited substance in organic crop
production; and removing ivermectin as
an allowed parasiticide for use in
organic livestock production.
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To submit comments, or access the
proposed rule docket, please follow the
instructions provided under the
ADDRESSES section. If you have
questions, consult the person listed
under FOR FURTHER INFORMATION
CONTACT.
Authority: 7 U.S.C. 6501–6522.
Dated: April 10, 2018.
Bruce Summers,
Acting Administrator, Agricultural Marketing
Service.
[FR Doc. 2018–07719 Filed 4–12–18; 8:45 am]
BILLING CODE 3410–02–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0273; Product
Identifier 2018–NM–017–AD]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
The Boeing Company Model 737–100,
–200, –200C, –300, –400, and –500
series airplanes. This proposed AD was
prompted by several reports of cracks in
a certain floor beam lower chord at stop
fitting Number 1 of the forward airstair
door cutout. This proposed AD would
require repetitive inspections for any
cracks and applicable on-condition
actions. We are proposing this AD to
address the unsafe condition on these
products.
SUMMARY:
We must receive comments on
this proposed AD by May 29, 2018.
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
DATES:
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Federal Register / Vol. 83, No. 72 / Friday, April 13, 2018 / Proposed Rules
comments on the overall regulatory,
economic, environmental, and energy
aspects of this NPRM. We will consider
all comments received by the closing
date and may amend this NPRM
because of those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
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 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, Transport Standards 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 on the internet
at https://www.regulations.gov by
searching for and locating Docket No.
FAA–2018–0273.
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–2018–
0273; 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
regulatory evaluation, any comments
received, and other information. The
street address for Docket Operations
(phone: 800–647–5527) is in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT:
Galib Abumeri, Aerospace Engineer,
Airframe Section, Los Angeles ACO
Branch, FAA, 3960 Paramount
Boulevard, Lakewood, CA 90712–4137;
phone: 562–627–5324; fax: 562–627–
5210; email: galib.abumeri@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposal. Send your comments to
an address listed under the ADDRESSES
section. Include ‘‘Docket No. FAA–
2018–0273; Product Identifier 2018–
NM–017–AD’’ at the beginning of your
comments. We specifically invite
Discussion
We have received several reports of
cracks in the station (STA) 312 floor
beam lower chord at stop fitting No. 1
of the forward airstair door cutout. One
operator found multiple cracks in the
STA 312 floor beam lower chord in the
fillet radii and the two inboard
attachment fasteners at stop fitting No.
1 of the forward airstair door cutout.
Cracks have also been found in the STA
312 floor beam lower chord fillet radii,
with no cracks in the lower chord at the
two inboard attach fastener holes
common to stop fitting No. 1. In
addition, other airplanes have had
cracks in the STA 312 floor beam lower
chord, at the two inboard attach fastener
holes. Cracks in the STA 312 floor beam
lower chord supporting the forward
airstair stop loads may lead to cracks
developing in the adjacent airstair
support structure. This condition, if not
addressed, could result in the inability
of a principal structural element to
sustain limit loads and possible rapid
decompression.
Related Service Information Under
1 CFR Part 51
We reviewed Boeing Alert
Requirements Bulletin 737–53A1370
RB, dated December 13, 2017. The
service information describes
procedures for repetitive high frequency
eddy current inspections of the STA 312
floor beam lower chord, and door stop
fittings No. 2, No. 5 and No. 8 on the
forward airstair door for any cracks and
applicable on-condition actions. 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.
16011
FAA’s Determination
We are proposing this AD because we
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
accomplishment of the actions
identified in Boeing Alert Requirements
Bulletin 737–53A1370 RB, dated
December 13, 2017, described
previously, except for any differences
identified as exceptions in the
regulatory text of this proposed AD.
For information on the procedures
and compliance times, see this service
information at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0273.
Explanation of Requirements Bulletin
The FAA worked in conjunction with
industry, under the Airworthiness
Directives Implementation Aviation
Rulemaking Committee (AD ARC), to
enhance the AD system. One
enhancement is a process for annotating
which steps in the service information
are ‘‘required for compliance’’ (RC) with
an AD. Boeing has implemented this RC
concept into Boeing service bulletins.
In an effort to further improve the
quality of ADs and AD-related Boeing
service information, a joint process
improvement initiative was worked
between the FAA and Boeing. The
initiative resulted in the development of
a new process in which the service
information more clearly identifies the
actions needed to address the unsafe
condition in the ‘‘Accomplishment
Instructions.’’ The new process results
in a Boeing Requirements Bulletin,
which contains only the actions needed
to address the unsafe condition (i.e.,
only the RC actions).
Costs of Compliance
We estimate that this proposed AD
affects 67 airplanes of U.S. registry. We
estimate the following costs to comply
with this proposed AD:
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ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
Inspection .........
Up to 11 work-hours × $85 per
hour = $935 per inspection
cycle.
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Parts cost
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Cost per product
$0
Fmt 4702
Cost on U.S. operators
Up to $935 per inspection cycle ...
Up to $62,645 per inspection
cycle.
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Federal Register / Vol. 83, No. 72 / Friday, April 13, 2018 / Proposed Rules
We have received no definitive data
that would enable us to provide cost
estimates for the on-condition actions
specified in this proposed AD.
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.
This proposed AD is issued in
accordance with authority delegated by
the Executive Director, Aircraft
Certification Service, as authorized by
FAA Order 8000.51C. In accordance
with that order, issuance of ADs is
normally a function of the Compliance
and Airworthiness Division, but during
this transition period, the Executive
Director has delegated the authority to
issue ADs applicable to transport
category airplanes and associated
appliances to the Director of the System
Oversight Division.
daltland on DSKBBV9HB2PROD with PROPOSALS
Regulatory Findings
We 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) Is not a ‘‘significant rule’’ under
the DOT Regulatory Policies and
Procedures (44 FR 11034, February 26,
1979),
(3) Will not affect intrastate aviation
in Alaska, and
(4) Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
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16:42 Apr 12, 2018
Jkt 244001
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
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 (AD):
■
The Boeing Company: Docket No. FAA–
2018–0273; Product Identifier 2018–
NM–017–AD.
(a) Comments Due Date
We must receive comments by May 29,
2018.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company
Model 737–100, –200, –200C, –300, –400,
and –500 series airplanes with a forward
airstair door installed, certificated in any
category, as identified in Boeing Alert
Requirements Bulletin 737–53A1370 RB,
dated December 13, 2017.
(d) Subject
Air Transport Association (ATA) of
America Code 52, Doors; 53, Fuselage.
(e) Unsafe Condition
This AD was prompted by several reports
of cracks in the station (STA) 312 floor beam
lower chord at stop fitting No. 1 of the
forward airstair door cutout. We are issuing
this AD to address such cracking, which
could result in the inability of a principal
structural element to sustain limit loads and
possible rapid decompression.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
(1) For airplanes identified as Group 1 in
Boeing Alert Requirements Bulletin 737–
53A1370 RB, dated December 13, 2017:
Within 120 days after the effective date of
this AD, inspect the STA 312 floor beam
lower chord and door stop fittings No. 2, No.
5 and No. 8 for any cracks and do applicable
on-condition actions, using a method
approved in accordance with the procedures
specified in paragraph (i) of this AD.
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Fmt 4702
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(2) Except as required by paragraph (h) of
this AD: For airplanes identified as Group 2
in Boeing Alert Requirements Bulletin 737–
53A1370 RB, dated December 13, 2017, at the
applicable times specified in the
‘‘Compliance’’ paragraph of Boeing Alert
Requirements Bulletin 737–53A1370 RB,
dated December 13, 2017, do all applicable
actions identified in, and in accordance with,
the Accomplishment Instructions of Boeing
Alert Requirements Bulletin 737–53A1370
RB, dated December 13, 2017.
Note 1 to paragraph (g)(2) of this AD:
Guidance for accomplishing the actions
required by this AD can be found in Boeing
Alert Service Bulletin 737–53A1370, dated
December 13, 2017, which is referred to in
Boeing Alert Requirements Bulletin 737–
53A1370 RB, dated December 13, 2017.
(h) Exceptions to Service Information
Specifications
(1) For purposes of determining
compliance with the requirements of this AD:
Where Boeing Alert Requirements Bulletin
737–53A1370 RB, dated December 13, 2017,
uses the phrase ‘‘the original issue date of
Requirements Bulletin 737–53A1370 RB,’’
this AD requires using ‘‘the effective date of
this AD.’’
(2) Where Boeing Alert Requirements
Bulletin 737–53A1370 RB, dated December
13, 2017, specifies contacting Boeing, this AD
requires repair using a method approved in
accordance with the procedures specified in
paragraph (i) of this AD.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Los Angeles ACO 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 (j)(1) of
this AD. Information may be emailed to: 9ANM-LAACO-AMOC-Requests@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.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair,
modification, or alteration required by this
AD if it is approved by the Boeing
Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Los Angeles
ACO Branch, to make those findings. To be
approved, the repair method, modification
deviation, or alteration deviation must meet
the certification basis of the airplane, and the
approval must specifically refer to this AD.
(j) Related Information
(1) For more information about this AD,
contact Galib Abumeri, Aerospace Engineer,
Airframe Section, Los Angeles ACO Branch,
FAA, 3960 Paramount Boulevard, Lakewood,
CA 90712–4137; phone: 562–627–5324; fax:
562–627–5210; email: galib.abumeri@faa.gov.
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Federal Register / Vol. 83, No. 72 / Friday, April 13, 2018 / Proposed Rules
(2) For service information identified in
this AD, 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,
Transport Standards Branch, 2200 South
216th St., Des Moines, WA. For information
on the availability of this material at the
FAA, call 206–231–3195.
Issued in Des Moines, Washington, on
March 29, 2018.
Chris Spangenberg,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2018–07632 Filed 4–12–18; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0274; Product
Identifier 2017–NM–128–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc., Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
Bombardier, Inc., Model BD–100–1A10
airplanes. This proposed AD was
prompted by reports of fire incidents of
the auxiliary power unit (APU) inlet,
which caused tail cone damage after an
initial failed APU start followed by two
or more in-flight APU start attempts.
This proposed AD would require
modification of the APU electronic
control unit (ECU) wiring harness. We
are proposing this AD to address the
unsafe condition on these products.
DATES: We must receive comments on
this proposed AD by May 29, 2018.
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
daltland on DSKBBV9HB2PROD with PROPOSALS
SUMMARY:
VerDate Sep<11>2014
16:42 Apr 12, 2018
Jkt 244001
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this NPRM, contact Bombardier, Inc.,
ˆ
400 Cote-Vertu Road West, Dorval,
´
Quebec H4S 1Y9, Canada; telephone
514–855–5000; fax 514–855–7401; email
thd.crj@aero.bombardier.com; internet
https://www.bombardier.com. You may
view this service information at the
FAA, Transport Standards Branch, 2200
South 216th Street, Des Moines, WA.
For information on the availability of
this material at the FAA, call 206–231–
3195.
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–2018–
0274; or in person at the Docket
Management Facility between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this NPRM, the regulatory
evaluation, 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 FURTHER INFORMATION CONTACT:
Assata Dessaline, Aerospace Engineer,
Avionics and Administrative Services
Section, FAA, New York ACO Branch,
1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–
228–7301; fax 516–794–5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposal. Send your comments to
an address listed under the ADDRESSES
section. Include ‘‘Docket No. FAA–
2018–0274; Product Identifier 2017–
NM–128–AD’’ at the beginning of your
comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this NPRM. We will consider
all comments received by the closing
date and may amend this NPRM based
on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this NPRM.
Discussion
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2017–26,
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Sfmt 4702
16013
dated July 31, 2017 (referred to after this
as the Mandatory Continuing
Airworthiness Information, or ‘‘the
MCAI’’), to correct an unsafe condition
for certain Bombardier, Inc., Model BD–
100–1A10 airplanes. The MCAI states:
APU inlet fire incidents causing tail cone
damage have been reported after an initial
failed APU start followed by two or more inflight APU start attempts. Bombardier Inc.
(BA) has determined that the in-flight
negative pressure differential at the APU
inlet allows flash fires of residual fuel in the
APU combustor to exit through the APU
inlet.
As an interim mitigating action, BA has
revised the affected aeroplane Aircraft Flight
Manual (AFM) procedure for in-flight APU
start to limit the number of APU start
attempts.
To further address the safety concerns
associated with in-flight APU inlet fire, BA
is introducing a modification to the APU
Electronic Control Unit (ECU) wiring harness
that will prevent a second attempt to start the
APU following a failed start in flight. This
[Canadian] AD is issued to mandate
compliance with BA Service Bulletin (SB)
100–49–04 or SB 350–49–001, as applicable,
on affected aeroplanes.
You may examine the MCAI in the
AD docket on the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0274.
Related Service Information Under 1
CFR Part 51
Bombardier, Inc., has issued Service
Bulletin 100–49–04, dated March 29,
2017; and Service Bulletin 350–49–001,
dated March 29, 2017. This service
information describes a modification of
the APU ECU harness. These documents
are distinct since they apply to different
airplane models in different
configurations. 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.
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 our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
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]]>Agencies
[Federal Register Volume 83, Number 72 (Friday, April 13, 2018)]
[Proposed Rules]
[Pages 16010-16013]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-07632]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0273; Product Identifier 2018-NM-017-AD]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and
-500 series airplanes. This proposed AD was prompted by several reports
of cracks in a certain floor beam lower chord at stop fitting Number 1
of the forward airstair door cutout. This proposed AD would require
repetitive inspections for any cracks and applicable on-condition
actions. We are proposing this AD to address the unsafe condition on
these products.
DATES: We must receive comments on this proposed AD by May 29, 2018.
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
[[Page 16011]]
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 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, Transport
Standards 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 on the internet at https://www.regulations.gov by
searching for and locating Docket No. FAA-2018-0273.
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-2018-
0273; 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 regulatory evaluation, any comments received, and other
information. The street address for Docket Operations (phone: 800-647-
5527) is in the ADDRESSES section. Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Galib Abumeri, Aerospace Engineer,
Airframe Section, Los Angeles ACO Branch, FAA, 3960 Paramount
Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5324; fax: 562-627-
5210; email: [email protected].
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2018-0273;
Product Identifier 2018-NM-017-AD'' at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this NPRM. We will consider all
comments received by the closing date and may amend this NPRM because
of those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
We have received several reports of cracks in the station (STA) 312
floor beam lower chord at stop fitting No. 1 of the forward airstair
door cutout. One operator found multiple cracks in the STA 312 floor
beam lower chord in the fillet radii and the two inboard attachment
fasteners at stop fitting No. 1 of the forward airstair door cutout.
Cracks have also been found in the STA 312 floor beam lower chord
fillet radii, with no cracks in the lower chord at the two inboard
attach fastener holes common to stop fitting No. 1. In addition, other
airplanes have had cracks in the STA 312 floor beam lower chord, at the
two inboard attach fastener holes. Cracks in the STA 312 floor beam
lower chord supporting the forward airstair stop loads may lead to
cracks developing in the adjacent airstair support structure. This
condition, if not addressed, could result in the inability of a
principal structural element to sustain limit loads and possible rapid
decompression.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Alert Requirements Bulletin 737-53A1370 RB,
dated December 13, 2017. The service information describes procedures
for repetitive high frequency eddy current inspections of the STA 312
floor beam lower chord, and door stop fittings No. 2, No. 5 and No. 8
on the forward airstair door for any cracks and applicable on-condition
actions. 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.
FAA's Determination
We are proposing this AD because we 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 accomplishment of the actions
identified in Boeing Alert Requirements Bulletin 737-53A1370 RB, dated
December 13, 2017, described previously, except for any differences
identified as exceptions in the regulatory text of this proposed AD.
For information on the procedures and compliance times, see this
service information at https://www.regulations.gov by searching for and
locating Docket No. FAA-2018-0273.
Explanation of Requirements Bulletin
The FAA worked in conjunction with industry, under the
Airworthiness Directives Implementation Aviation Rulemaking Committee
(AD ARC), to enhance the AD system. One enhancement is a process for
annotating which steps in the service information are ``required for
compliance'' (RC) with an AD. Boeing has implemented this RC concept
into Boeing service bulletins.
In an effort to further improve the quality of ADs and AD-related
Boeing service information, a joint process improvement initiative was
worked between the FAA and Boeing. The initiative resulted in the
development of a new process in which the service information more
clearly identifies the actions needed to address the unsafe condition
in the ``Accomplishment Instructions.'' The new process results in a
Boeing Requirements Bulletin, which contains only the actions needed to
address the unsafe condition (i.e., only the RC actions).
Costs of Compliance
We estimate that this proposed AD affects 67 airplanes of U.S.
registry. We estimate the following costs to comply with this proposed
AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Inspection................. Up to 11 work-hours x $0 Up to $935 per Up to $62,645 per
$85 per hour = $935 inspection cycle. inspection cycle.
per inspection cycle.
----------------------------------------------------------------------------------------------------------------
[[Page 16012]]
We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this proposed
AD.
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.
This proposed AD is issued in accordance with authority delegated
by the Executive Director, Aircraft Certification Service, as
authorized by FAA Order 8000.51C. In accordance with that order,
issuance of ADs is normally a function of the Compliance and
Airworthiness Division, but during this transition period, the
Executive Director has delegated the authority to issue ADs applicable
to transport category airplanes and associated appliances to the
Director of the System Oversight Division.
Regulatory Findings
We 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) Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, 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.
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):
The Boeing Company: Docket No. FAA-2018-0273; Product Identifier
2018-NM-017-AD.
(a) Comments Due Date
We must receive comments by May 29, 2018.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 737-100, -200, -
200C, -300, -400, and -500 series airplanes with a forward airstair
door installed, certificated in any category, as identified in
Boeing Alert Requirements Bulletin 737-53A1370 RB, dated December
13, 2017.
(d) Subject
Air Transport Association (ATA) of America Code 52, Doors; 53,
Fuselage.
(e) Unsafe Condition
This AD was prompted by several reports of cracks in the station
(STA) 312 floor beam lower chord at stop fitting No. 1 of the
forward airstair door cutout. We are issuing this AD to address such
cracking, which could result in the inability of a principal
structural element to sustain limit loads and possible rapid
decompression.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) For airplanes identified as Group 1 in Boeing Alert
Requirements Bulletin 737-53A1370 RB, dated December 13, 2017:
Within 120 days after the effective date of this AD, inspect the STA
312 floor beam lower chord and door stop fittings No. 2, No. 5 and
No. 8 for any cracks and do applicable on-condition actions, using a
method approved in accordance with the procedures specified in
paragraph (i) of this AD.
(2) Except as required by paragraph (h) of this AD: For
airplanes identified as Group 2 in Boeing Alert Requirements
Bulletin 737-53A1370 RB, dated December 13, 2017, at the applicable
times specified in the ``Compliance'' paragraph of Boeing Alert
Requirements Bulletin 737-53A1370 RB, dated December 13, 2017, do
all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
737-53A1370 RB, dated December 13, 2017.
Note 1 to paragraph (g)(2) of this AD: Guidance for
accomplishing the actions required by this AD can be found in Boeing
Alert Service Bulletin 737-53A1370, dated December 13, 2017, which
is referred to in Boeing Alert Requirements Bulletin 737-53A1370 RB,
dated December 13, 2017.
(h) Exceptions to Service Information Specifications
(1) For purposes of determining compliance with the requirements
of this AD: Where Boeing Alert Requirements Bulletin 737-53A1370 RB,
dated December 13, 2017, uses the phrase ``the original issue date
of Requirements Bulletin 737-53A1370 RB,'' this AD requires using
``the effective date of this AD.''
(2) Where Boeing Alert Requirements Bulletin 737-53A1370 RB,
dated December 13, 2017, specifies contacting Boeing, this AD
requires repair using a method approved in accordance with the
procedures specified in paragraph (i) of this AD.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Los Angeles ACO 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 (j)(1) of this AD. Information
may be emailed to: [email protected].
(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.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by the Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has been authorized by the
Manager, Los Angeles ACO Branch, to make those findings. To be
approved, the repair method, modification deviation, or alteration
deviation must meet the certification basis of the airplane, and the
approval must specifically refer to this AD.
(j) Related Information
(1) For more information about this AD, contact Galib Abumeri,
Aerospace Engineer, Airframe Section, Los Angeles ACO Branch, FAA,
3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-
5324; fax: 562-627-5210; email: [email protected].
[[Page 16013]]
(2) For service information identified in this AD, 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, Transport Standards Branch, 2200 South 216th
St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195.
Issued in Des Moines, Washington, on March 29, 2018.
Chris Spangenberg,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-07632 Filed 4-12-18; 8:45 am]
BILLING CODE 4910-13-P
