Proposed Rule2024-13994
Airworthiness Directives; The Boeing Company Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
June 26, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 767-200, -300, and -400ER series airplanes. This proposed AD was prompted by a report of multiple engine indicating and crew alerting system messages during the potable water servicing for a Model 777 freighter airplane after the water leaked onto the electronics equipment cooling air filter. Since the Model 767 passenger airplanes are similar in design, we are issuing an AD against the Model 767 passenger airplanes. This proposed AD would require installation of hoseducts around the left-side section 43 potable water supply hoses and connections, a potable water system leakage test, and applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 89 Issue 123 (Wednesday, June 26, 2024)</title>
</head>
<body><pre>
[Federal Register Volume 89, Number 123 (Wednesday, June 26, 2024)]
[Proposed Rules]
[Pages 53367-53370]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-13994]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1699; Project Identifier AD-2023-01084-T]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
[[Page 53368]]
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain The Boeing Company Model 767-200, -300, and -400ER series
airplanes. This proposed AD was prompted by a report of multiple engine
indicating and crew alerting system messages during the potable water
servicing for a Model 777 freighter airplane after the water leaked
onto the electronics equipment cooling air filter. Since the Model 767
passenger airplanes are similar in design, we are issuing an AD against
the Model 767 passenger airplanes. This proposed AD would require
installation of hoseducts around the left-side section 43 potable water
supply hoses and connections, a potable water system leakage test, and
applicable corrective 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 August 12,
2024.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://regulations.gov">regulations.gov</a>. Follow
the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1699; 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:
<bullet> For service information, 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 <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
<bullet> 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
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2024-1699.
FOR FURTHER INFORMATION CONTACT: Brandon Lucero, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-
231-3569; email: <a href="/cdn-cgi/l/email-protection#e2a090838c868d8cccae978187908da2848383cc858d94"><span class="__cf_email__" data-cfemail="f4b686959a909b9adab8819791869bb4929595da939b82">[email protected]</span></a>.
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-2024-1699; Project Identifier
AD-2023-01084-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
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to
Brandon Lucero, Aviation Safety Engineer, FAA, 2200 South 216th St.,
Des Moines, WA 98198; phone: 206-231-3569; email:
<a href="/cdn-cgi/l/email-protection#135161727d777c7d3d5f667076617c537572723d747c65"><span class="__cf_email__" data-cfemail="286a5a49464c474606645d4b4d5a47684e4949064f475e">[email protected]</span></a>. 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 of multiple engine indicating and
crew alerting system messages during the potable water servicing for a
Model 777 freighter airplane. The cause was found to be the separation
of a fitting and steel water supply tube at a location above an
electronics equipment cooling air filter, behind the forward cargo
compartment left sidewall. The water from the soaked filter was then
blown by the equipment cooling system onto multiple line replaceable
units in the main electronics center. Model 767 passenger airplanes are
similar in design to Model 777 freighter airplane. Model 767 passenger
airplanes pull air with a fan from the area behind the forward cargo
compartment left sidewall through an inlet screen and duct to cool main
electronics center components. Model 767 passenger airplanes use
potable water supply hoses with inner tubes made of flexible silicone-
lined polymer and outer tubes made of steel braid at locations
typically below the equipment cooling supply air inlet. Also, some
Model 767 passenger airplane configurations have potable water system
fitting connections and water supply hose routing near the equipment
cooling supply air inlet and/or water supply hose routing at locations
above it. The water leakage from the potable water system near the
equipment cooling supply air inlet, if not addressed, could damage main
electronics center components and result in loss of continued safe
flight and landing.
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 767-38A0076 RB,
dated December 1, 2023. This service information specifies procedures
for the following actions at the lower lobe section 43 potable water
system plumbing on left side:
<bullet> Installing hoseducts and support clamps.
<bullet> Installing spray shields, new tie straps on the supply
hose, and tee fitting shrouds, depending on the airplane configuration.
<bullet> Replacing the supply hoses and tee fittings for certain
airplane configurations.
<bullet> Doing a potable water system leakage test and, for any
leakage found,
[[Page 53369]]
repeating the test until no leakage is found.
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 <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-
2024-1699.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 397 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Install hose ducts, connections, Up to 19 work-hours Up to $1,130........ $2,745 $1,089,765
and leakage test. x $85 per hour =
$1,615.
----------------------------------------------------------------------------------------------------------------
The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this proposed AD may be covered under warranty, thereby reducing the
cost impact on affected operators.
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-2024-1699; Project Identifier AD-
2023-01084-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by August 12, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 767-200, -300, and -
400ER series airplanes, as identified in Boeing Alert Requirements
Bulletin 767-38A0076 RB, dated December 1, 2023.
(d) Subject
Air Transport Association (ATA) of America Code 38, Water/waste.
(e) Unsafe Condition
This AD was prompted by a report of multiple engine indicating
and crew alerting system messages during the potable water servicing
for a Model 777 freighter airplane after the water leaked onto the
electronics equipment cooling air filter. The FAA is issuing this AD
to address water leakage from the potable water system near the
equipment cooling supply air inlet. The unsafe condition, if not
addressed, could damage main electronics center components and
result in loss of continued safe flight and landing.
(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 time specified in the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin 767-38A0076 RB, dated December 1, 2023,
do all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
767-38A0076 RB, dated December 1, 2023.
Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
767-38A0076, dated December 1, 2023, which is referred to in Boeing
Alert Requirements Bulletin 767-38A0076 RB, dated December 1, 2023.
(h) Exception to Service Information Specifications
Where the Boeing Recommended Compliance Time columns of the
tables in the ``Compliance'' paragraph of Boeing Alert Requirements
Bulletin 767-38A0076 RB, dated December 1, 2023, refer to ``the
Original Issue date of Requirements Bulletin 767-38A0076 RB,'' this
AD requires using the effective date 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
[[Page 53370]]
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: <a href="/cdn-cgi/l/email-protection#96d7dbd9d5d6f0f7f7b8f1f9e0"><span class="__cf_email__" data-cfemail="b4f5f9fbf7f4d2d5d59ad3dbc2">[email protected]</span></a>.
(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.
(j) Related Information
For more information about this AD, contact Brandon Lucero,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 206-231-3569; email: <a href="/cdn-cgi/l/email-protection#9ddfeffcf3f9f2f3b3d1e8fef8eff2ddfbfcfcb3faf2eb"><span class="__cf_email__" data-cfemail="682a1a09060c070646241d0b0d1a07280e0909460f071e">[email protected]</span></a>.
(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 767-38A0076 RB, dated
December 1, 2023.
(ii) [Reserved]
(3) For service information, 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 <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
(4) 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.
(5) You may view this material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#385e4a1651564b485d5b4c5157567856594a59165f574e"><span class="__cf_email__" data-cfemail="563024783f3825263335223f3938163837243778313920">[email protected]</span></a>.
Issued on June 20, 2024.
Suzanne Masterson,
Deputy Director, Integrated Certificate Management Division, Aircraft
Certification Service.
[FR Doc. 2024-13994 Filed 6-25-24; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on June 26, 2024.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.