Airworthiness Directives; The Boeing Company Airplanes, 47399-47402 [2023-15304]
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Federal Register / Vol. 88, No. 140 / Monday, July 24, 2023 / Proposed Rules
either $0.74 or an adjustor equal to the
24-month (August–July) rolling simple
average difference between the
Advanced Class III and Class IV skim
milk prices.
Proposal 15: Submitted by the Milk
Innovation Group
This proposal seeks to retain the
current ‘‘average of’’ formula for the
base Class I skim milk price and
proposes to update the adjuster monthly
using a 24-month look back period with
a 12-month lag, i.e., the preceding the
13-to-36-month period. The ‘‘rolling’’
adjuster calculation would be the
difference between the ‘‘higher of’’ the
advanced Class III or IV skim milk price
for each month and the ‘‘average of’’ the
advanced Class III or IV skim milk price,
averaged over the preceding 13-to-36month period, plus the ‘‘average of’’ the
Class III and IV advanced skim milk
prices for that month.
Proposal 16: Submitted by Edge Dairy
Farmer Cooperative
This proposal seeks to change the
base Class I skim milk price to the
announced Class III skim milk price,
plus an adjuster. The proposal seeks to
amend calculation of Class I prices to
use announced rather than advanced
prices. The proposed adjuster would be
a 36-month average (August–July) of the
monthly differences between the
‘‘higher of’’ the advanced Class III skim
milk price or advanced Class IV skim
milk price, and the Class III skim milk
price.
lotter on DSK11XQN23PROD with PROPOSALS1
Proposal 17: Submitted by Edge Dairy
Farmer Cooperative
This proposal seeks to use the ‘‘higher
of’’ the Class III skim milk price or the
Class IV skim milk price to calculate the
base Class I skim milk price. The
proposal also seeks to amend
calculation of Class I prices to use
announced rather than advanced prices.
Proposal 18: Submitted by the American
Farm Bureau Federation
This proposal seeks to eliminate the
advanced pricing of Class I milk and
components, and Class II skim milk and
components. As proposed, the Class II
skim milk price would be equal to the
Announced Class IV skim milk price
plus the Class II differential; the Class
II nonfat solids price would be equal to
the Announced Class IV nonfat solids
price plus one-hundredth of the Class II
differential. The proponent proposes the
Class I skim milk price would be the
‘‘higher of’’ the Announced Class III or
Class IV skim milk prices plus the Class
I differential; and the Class I butterfat
price would be equal to the butterfat
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16:14 Jul 21, 2023
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47399
price plus one-hundredth of the Class I
differential.
List of Subjects in 7 CFR Part 1000
Milk marketing orders.
Class I and Class II Differentials
Erin Morris,
Associate Administrator, Agricultural
Marketing Service.
Proposal 19: Submitted by the National
Milk Producers Federation
This proposal seeks to update the
Adjusted Class I differentials as
referenced in all Federal orders for the
3,108 named counties, parishes, and
independent cities in the contiguous 48
United States. The proposed update
would increase Class I differentials at all
locations, in varying amounts.
Proposal 20: Submitted by the Milk
Innovation Group
This proposal seeks to lower the
current base Class I differential from
$1.60 to $0.00.
Proposal 21: Submitted by the American
Farm Bureau Federation
This proposal seeks to update the
Class II differential to $1.56.
Specifically, the proposal seeks to
calculate the Class II differential using
the current nonfat dry milk make
allowance multiplied by the current
nonfat solids yield factor and updated
butterfat and nonfat solids tests for milk
in the FMMOs.
Proposal 22: Submitted by Dairy
Program, Agricultural Marketing
Service:
Make such changes as may be
necessary to make the respective
marketing orders conform with any
amendments thereto that may result
from this hearing.
From the time that a hearing notice is
issued and until the issuance of a final
decision in a proceeding, USDA
employees involved in the decisionmaking process are prohibited from
discussing the merits of the hearing
issues on an ex parte basis with any
person having an interest in the
proceeding. For this proceeding, the
prohibition applies to employees in the
following organizational units:
Office of the Secretary of Agriculture
Office of the Administrator, Agricultural
Marketing Service
Office of the General Counsel
Dairy Program, Agricultural Marketing
Service (Washington, DC Office, and
the Offices of all Market
Administrators)
Procedural matters are not subject to
the above prohibition and may be
discussed at any time.
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[FR Doc. 2023–15496 Filed 7–21–23; 8:45 am]
BILLING CODE 3410–02–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2023–1413; Project
Identifier AD–2023–00087–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
737–600, –700, –700C, –800, –900 and
–900ER airplanes. This proposed AD
was prompted by reports of cracks in
the forward galley door cutout forward
upper corner bear strap. It has been
determined that the cracks were caused
by high operating stresses in the
fuselage skin door cutout corner area
due to stress concentration at the door
cutout. This proposed AD would require
an inspection of the fuselage skin and
the bear strap at the forward galley door
cutout forward upper corner for existing
repairs, and applicable related
investigative and corrective inspections.
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 7,
2023.
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
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.
SUMMARY:
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Federal Register / Vol. 88, No. 140 / Monday, July 24, 2023 / Proposed Rules
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2023–1413; 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.
Material Incorporated by Reference:
• 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; website
myboeingfleet.com.
• You may view this 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
regulations.gov by searching for and
locating Docket No. FAA–2023–1413.
FOR FURTHER INFORMATION CONTACT: Bill
Ashforth, Aviation Safety Engineer,
FAA, 2200 South 216th St., Des Moines,
WA 98198; phone: 206–231–3520;
email: bill.ashforth@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–2023–1413; Project Identifier AD–
2023–00087–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
regulations.gov, 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 Bill Ashforth, Aviation
Safety Engineer, FAA, 2200 South 216th
St., Des Moines, WA 98198; phone:
206–231–3520; email: bill.ashforth@
faa.gov. Any commentary that the FAA
receives that is not specifically
designated as CBI will be placed in the
public docket for this rulemaking.
Background
The FAA has received reports
indicating cracks in the forward galley
door cutout forward upper corner bear
strap. The airplanes had accumulated
between 33,070 and 44,224 total flight
cycles at the time of the crack findings.
The cracks were caused by high
operating stresses in the fuselage skin
door cutout corner area due to stress
concentration at the door cutout. This
condition, if not addressed, could result
in an undetected crack in the fuselage
skin and bear strap, and could increase
in length until the fuselage skin and
bear strap severs. If not detected and
corrected, a severed fuselage skin and
bear strap may lead to the inability to
sustain limit loads and may result in
rapid decompression of the fuselage and
loss of structural integrity of the aircraft.
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
Requirements Bulletin 737–53A1407
RB, dated December 20, 2022. This
service information specifies procedures
for an external general visual inspection
of the fuselage skin at the forward galley
door cutout forward upper corner for
any repair, and applicable related
investigative and corrective actions.
Related investigative actions include
detailed inspections for cracking of the
fuselage skin and bear strap. Corrective
actions include obtaining and following
instructions for crack repair.
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 ADDRESSES.
Proposed AD Requirements in This
NPRM
This proposed AD would require
accomplishing the actions specified in
the service information already
described and 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 regulations.gov under
Docket No. FAA–2023–1413.
Costs of Compliance
The FAA estimates that this AD, if
adopted as proposed, would affect 1,938
airplanes of U.S. registry. The FAA
estimates the following costs to comply
with this proposed AD:
ESTIMATED COSTS
lotter on DSK11XQN23PROD with PROPOSALS1
Action
Labor cost
External general visual inspection
for repairs.
External detailed and eddy current
inspection for cracks.
External eddy current inspection
without a quadrupler repair.
External eddy current inspection
with a quadrupler repair.
VerDate Sep<11>2014
16:14 Jul 21, 2023
Parts cost
0.5 work-hour × $85 per hour
$42.50 per inspection cycle.
3.5 work-hours × $85 per hour
$197.50.
4 work-hours × $85 per hour
$340 per inspection cycle.
4 work-hours × $85 per hour
$340 per inspection cycle.
Jkt 259001
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Frm 00005
Cost per product
=
$0
=
Cost on U.S. operators
0
$42.50 per inspection
cycle.
$197.50 .............................
$82,365 per inspection
cycle.
$576,555.
=
0
$340 per inspection cycle
=
0
$340 per inspection cycle
Up to $658,920 per inspection cycle.
Up to $658,920 per inspection cycle.
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Federal Register / Vol. 88, No. 140 / Monday, July 24, 2023 / Proposed Rules
47401
ESTIMATED COSTS—Continued
Action
Labor cost
Internal eddy current inspection
for cracks.
26 work-hours × $85 per hour =
$2,210.
The FAA has received no definitive
data on which to base the cost estimates
for the on-condition repairs or for the
alternative inspections 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.
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.
lotter on DSK11XQN23PROD with PROPOSALS1
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.
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16:14 Jul 21, 2023
Jkt 259001
Parts cost
Cost per product
0
$2,210 ...............................
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:
■
The Boeing Company: Docket No. FAA–
2023–1413; Project Identifier AD–2023–
00087–T.
(a) Comments Due Date
The FAA must receive comments on this
airworthiness directive (AD) by September 7,
2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company
Model 737–600, –700, –700C, –800, –900 and
–900ER airplanes, certificated in any
category, as identified in Boeing Alert
Requirements Bulletin 737–53A1407 RB,
dated December 20, 2022.
(d) Subject
Air Transport Association (ATA) of
America Code 53, Fuselage.
(e) Unsafe Condition
This AD was prompted by reports of cracks
in the forward galley door cutout forward
upper corner bear strap. The FAA is issuing
this AD to address cracks in the fuselage skin
and bear strap, which could increase in
length until the fuselage skin and bear strap
severs. If not detected and corrected, a
severed fuselage skin and bear strap may lead
to the inability of the principal structural
element (PSE) to sustain limit loads and may
result in rapid decompression of the fuselage
and loss of structural integrity.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
Except as specified by paragraph (h) of this
AD: At the applicable times specified in the
‘‘Compliance’’ paragraph of Boeing Alert
Requirements Bulletin 737–53A1407 RB,
dated December 20, 2022, do all applicable
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Sfmt 4702
Cost on U.S. operators
$4,282,980.
actions identified in, and in accordance with,
the Accomplishment Instructions of Boeing
Alert Requirements Bulletin 737–53A1407
RB, dated December 20, 2022.
Note 1 to paragraph (g): Guidance for
accomplishing the actions required by this
AD can be found in Boeing Alert Service
Bulletin 737–53A1407, dated December 20,
2022, which is referred to in Boeing Alert
Requirements Bulletin 737–53A1407 RB,
dated December 20, 2022.
(h) Exceptions to Service Information
Specifications
(1) Where the Compliance Time columns
of the tables in the ‘‘Compliance’’ paragraph
of Boeing Alert Requirements Bulletin 737–
53A1407 RB, dated December 20, 2022, use
the phrase ‘‘the original issue date of
Requirements Bulletin 737–53A1407 RB,’’
this AD requires using ‘‘the effective date of
this AD.’’
(2) Where Boeing Alert Requirements
Bulletin 737–53A1407 RB, dated December
20, 2022, specifies contacting Boeing for
repair instructions or for alternative
inspections, this AD requires doing the
repair, or doing the alternative inspections
and applicable on-condition actions, 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, AIR–520, Continued
Operational Safety 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 manager of the certification office,
send it to the attention of the person
identified in paragraph (j) of this AD.
Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the responsible Flight Standards 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 Company
Organization Designation Authorization
(ODA) that has been authorized by the
Manager, AIR–520, Continued Operational
Safety Branch, FAA, 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.
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Federal Register / Vol. 88, No. 140 / Monday, July 24, 2023 / Proposed Rules
(j) Related Information
For more information about this AD,
contact Bill Ashforth, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–3520;
email: bill.ashforth@faa.gov.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin
737–53A1407 RB, dated December 20, 2022.
(ii) [Reserved]
(3) 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; website
myboeingfleet.com.
(4) You may view this 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.
(5) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on July 7, 2023.
Michael Linegang,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–15304 Filed 7–21–23; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2023–1053; Project
Identifier AD–2023–00164–T]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Model Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
lotter on DSK11XQN23PROD with PROPOSALS1
AGENCY:
The FAA proposes to adopt a
new airworthiness directive (AD) for
certain The Boeing Company Model
757–200, –200CB, and –200PF series
airplanes. This proposed AD was
prompted by a crack growth analysis,
which indicated that current
SUMMARY:
VerDate Sep<11>2014
16:14 Jul 21, 2023
Jkt 259001
inspections are not adequate to detect
cracks in certain sections of the upper
frame at the frame splice between
certain stringers before a single frame
fails. This proposed AD would require
an inspection or records review for
existing repairs; repetitive inspections
for cracks of the upper frame at the
frame splices between certain stringers
in certain sections, and applicable oncondition actions. 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 7,
2023.
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
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.
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2023–1053; 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.
Material Incorporated by Reference:
• 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; website
myboeingfleet.com.
• You may view this 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
regulations.gov by searching for and
locating Docket No. FAA–2023–1053.
FOR FURTHER INFORMATION CONTACT:
Wayne Ha, Aviation Safety Engineer,
Continued Operational Safety Branch,
FAA, 2200 South 216th Street, Des
Moines, WA 98198; phone: 562–627–
5238; email: wayne.ha@faa.gov.
SUPPLEMENTARY INFORMATION:
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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–2023–1053; Project Identifier AD–
2023–00164–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
regulations.gov, 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 Wayne Ha, Aviation
Safety Engineer, Continued Operational
Safety Branch, FAA, 2200 South 216th
Street, Des Moines, WA 98198; phone:
562–627–5238; email: wayne.ha@
faa.gov. Any commentary that the FAA
receives that is not specifically
designated as CBI will be placed in the
public docket for this rulemaking.
Background
The FAA has received a report
indicating that cracking has occurred in
the frame splice doubler and may occur
in the upper frame at the upper frame
splice between stringer S–13 and S–14
on Boeing Model 737–300, –400, and
–500 airplanes at multiple frame
locations. The FAA issued AD 2021–26–
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]]>Agencies
[Federal Register Volume 88, Number 140 (Monday, July 24, 2023)]
[Proposed Rules]
[Pages 47399-47402]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-15304]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1413; Project Identifier AD-2023-00087-T]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company 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 The Boeing Company Model 737-600, -700, -700C, -800, -900
and -900ER airplanes. This proposed AD was prompted by reports of
cracks in the forward galley door cutout forward upper corner bear
strap. It has been determined that the cracks were caused by high
operating stresses in the fuselage skin door cutout corner area due to
stress concentration at the door cutout. This proposed AD would require
an inspection of the fuselage skin and the bear strap at the forward
galley door cutout forward upper corner for existing repairs, and
applicable related investigative and corrective inspections. 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
7, 2023.
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 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.
[[Page 47400]]
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2023-1413; 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.
Material Incorporated by Reference:
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; website myboeingfleet.com.
You may view this 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
regulations.gov by searching for and locating Docket No. FAA-2023-1413.
FOR FURTHER INFORMATION CONTACT: Bill Ashforth, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-
231-3520; 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-2023-1413; Project Identifier
AD-2023-00087-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
regulations.gov, 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 Bill
Ashforth, Aviation Safety Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206-231-3520; email: [email protected].
Any commentary that the FAA receives that is not specifically
designated as CBI will be placed in the public docket for this
rulemaking.
Background
The FAA has received reports indicating cracks in the forward
galley door cutout forward upper corner bear strap. The airplanes had
accumulated between 33,070 and 44,224 total flight cycles at the time
of the crack findings. The cracks were caused by high operating
stresses in the fuselage skin door cutout corner area due to stress
concentration at the door cutout. This condition, if not addressed,
could result in an undetected crack in the fuselage skin and bear
strap, and could increase in length until the fuselage skin and bear
strap severs. If not detected and corrected, a severed fuselage skin
and bear strap may lead to the inability to sustain limit loads and may
result in rapid decompression of the fuselage and loss of structural
integrity of the aircraft.
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 Requirements Bulletin 737-53A1407 RB,
dated December 20, 2022. This service information specifies procedures
for an external general visual inspection of the fuselage skin at the
forward galley door cutout forward upper corner for any repair, and
applicable related investigative and corrective actions. Related
investigative actions include detailed inspections for cracking of the
fuselage skin and bear strap. Corrective actions include obtaining and
following instructions for crack repair.
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 ADDRESSES.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in the service information already described and 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 regulations.gov under Docket No. FAA-
2023-1413.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 1,938 airplanes of U.S. registry. The FAA estimates the
following costs to comply with this proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
External general visual 0.5 work-hour x $85 $0 $42.50 per $82,365 per
inspection for repairs. per hour = $42.50 inspection cycle. inspection cycle.
per inspection
cycle.
External detailed and eddy 3.5 work-hours x $85 0 $197.50............. $576,555.
current inspection for cracks. per hour = $197.50.
External eddy current inspection 4 work-hours x $85 0 $340 per inspection Up to $658,920 per
without a quadrupler repair. per hour = $340 per cycle. inspection cycle.
inspection cycle.
External eddy current inspection 4 work-hours x $85 0 $340 per inspection Up to $658,920 per
with a quadrupler repair. per hour = $340 per cycle. inspection cycle.
inspection cycle.
[[Page 47401]]
Internal eddy current inspection 26 work-hours x $85 0 $2,210.............. $4,282,980.
for cracks. per hour = $2,210.
----------------------------------------------------------------------------------------------------------------
The FAA has received no definitive data on which to base the cost
estimates for the on-condition repairs or for the alternative
inspections 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.
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:
The Boeing Company: Docket No. FAA-2023-1413; Project Identifier AD-
2023-00087-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by September 7, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 737-600, -700, -
700C, -800, -900 and -900ER airplanes, certificated in any category,
as identified in Boeing Alert Requirements Bulletin 737-53A1407 RB,
dated December 20, 2022.
(d) Subject
Air Transport Association (ATA) of America Code 53, Fuselage.
(e) Unsafe Condition
This AD was prompted by reports of cracks in the forward galley
door cutout forward upper corner bear strap. The FAA is issuing this
AD to address cracks in the fuselage skin and bear strap, which
could increase in length until the fuselage skin and bear strap
severs. If not detected and corrected, a severed fuselage skin and
bear strap may lead to the inability of the principal structural
element (PSE) to sustain limit loads and may result in rapid
decompression of the fuselage and loss of structural integrity.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified by paragraph (h) of this AD: At the
applicable times specified in the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin 737-53A1407 RB, dated December 20, 2022,
do all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
737-53A1407 RB, dated December 20, 2022.
Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
737-53A1407, dated December 20, 2022, which is referred to in Boeing
Alert Requirements Bulletin 737-53A1407 RB, dated December 20, 2022.
(h) Exceptions to Service Information Specifications
(1) Where the Compliance Time columns of the tables in the
``Compliance'' paragraph of Boeing Alert Requirements Bulletin 737-
53A1407 RB, dated December 20, 2022, use the phrase ``the original
issue date of Requirements Bulletin 737-53A1407 RB,'' this AD
requires using ``the effective date of this AD.''
(2) Where Boeing Alert Requirements Bulletin 737-53A1407 RB,
dated December 20, 2022, specifies contacting Boeing for repair
instructions or for alternative inspections, this AD requires doing
the repair, or doing the alternative inspections and applicable on-
condition actions, 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, AIR-520, Continued Operational Safety 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 manager of the certification office,
send it to the attention of the person identified in paragraph (j)
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 responsible Flight Standards 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 Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, AIR-
520, Continued Operational Safety Branch, FAA, 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.
[[Page 47402]]
(j) Related Information
For more information about this AD, contact Bill Ashforth,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 206-231-3520; email: [email protected].
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin 737-53A1407 RB, dated
December 20, 2022.
(ii) [Reserved]
(3) 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; website myboeingfleet.com.
(4) You may view this 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.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on July 7, 2023.
Michael Linegang,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-15304 Filed 7-21-23; 8:45 am]
BILLING CODE 4910-13-P
