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[Federal Register Volume 90, Number 11 (Friday, January 17, 2025)]
[Proposed Rules]
[Pages 5751-5753]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-00825]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2025-0004; Project Identifier AD-2024-00094-T]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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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 series airplanes. This proposed AD was prompted by a report 
that some passenger service unit (PSU)-mounted video monitors became 
detached from the PSU rails during a hard landing. This proposed AD 
would require replacing PSU-mounted video monitors that do not have 
secondary retention lanyards. 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 March 3, 
2025.

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-2025-0004; 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 the material identified in this proposed 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.
     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. It is also available at regulations.gov under 
Docket No. FAA-2025-0004.

FOR FURTHER INFORMATION CONTACT: Julie Linn, Aviation Safety Engineer, 
FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-3584; 
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-2025-0004; Project Identifier 
AD-2024-00094-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 Julie 
Linn, Aviation Safety Engineer, FAA, 2200 South 216th

[[Page 5752]]

St., Des Moines, WA 98198; phone: 206-231-3584; 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 a report that some PSU-mounted video monitors 
became detached from the PSU rails during a hard landing that did not 
exceed the emergency load requirements for the PSUs. PSU-mounted video 
monitors that become fully detached or are held at an unsafe height 
could result in injury to passengers and impede passenger and crew 
egress during emergency evacuation.

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.

Material Incorporated by Reference Under 1 CFR Part 51

    The FAA reviewed Boeing Special Attention Requirements Bulletins 
737-25-1851 RB and 737-25-1858 RB, both dated December 15, 2023. This 
material specifies procedures for replacing all PSU-mounted video 
monitors that do not have secondary retention lanyards with PSU-mounted 
video monitors that have secondary retention lanyards. The replacement 
includes making sure each inboard lanyard is attached to the inboard 
PSU rail. These documents are distinct since Boeing Special Attention 
Requirements Bulletin 737-25-1851 RB, dated December 15, 2023, 
addresses airplanes with certain Burrana monitors, and Boeing Special 
Attention Requirements Bulletin 737-25-1858 RB, dated December 15, 
2023, addresses airplanes with certain Panasonic monitors. This 
material is reasonably available because the interested parties have 
access to it through their normal course of business or by the means 
identified in ADDRESSES.

Proposed AD Requirements in This NPRM

    This proposed AD would require accomplishing the actions specified 
in the material already described, except for any differences 
identified as exceptions in the regulatory text of this proposed AD, 
and except as described under ``Difference Between this Proposed AD and 
the Referenced Material.'' For information on the procedures and 
compliance times, see this material at regulations.gov under Docket No. 
FAA-2025-0004.

Difference Between This Proposed AD and the Referenced Material

    The effectivity in Boeing Special Attention Requirements Bulletin 
737-25-1851 RB, and Boeing Special Attention Requirements Bulletin 737-
25-1858 RB, both dated December 15, 2023, is limited to certain line 
numbers, which address PSU-mounted video monitors installed in 
production. However, affected PSU-mounted video monitors may also be 
installed on airplanes modified in accordance with a supplemental type 
certificate. The applicability of this proposed AD, therefore, is 
expanded to specify The Boeing Company Model 737-600, -700, -700C, -
800, -900, and -900ER series airplanes equipped with PSU-mounted video 
monitors to ensure that the unsafe condition is adequately addressed in 
the fleet.

Costs of Compliance

    The FAA estimates that this AD, if adopted as proposed, would 
affect 459 airplanes of U.S. registry. The FAA estimates the following 
costs to comply with this proposed AD:

                                                 Estimated Costs
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                                                                                                 Cost on U.S.
             Action                   Labor cost          Parts cost       Cost per monitor        operators
----------------------------------------------------------------------------------------------------------------
Replacement (Burrana monitors--   2 work-hours x $85  $2,734............  $2,904............  Up to $5,401,440*
 airplanes identified Boeing       per hour = $170,                                           (62 airplanes).
 Special Attention Requirements    per monitor.
 Bulletin 737-25-1851 RB, dated
 December 15, 2023).
Replacement (Panasonic monitors-- 2 work-hours x $85  $354..............  $524..............  Up to $5,376,240*
 airplanes identified in Boeing    per hour = $170,                                           (342 airplanes).
 Special Attention Requirements    per monitor.
 Bulletin 737-25-1858 RB, dated
 December 15, 2023).
Replacement.....................  2 work-hours x $85  Up to $2,734......  Up to $2,904......  Up to $4,791,600*
(monitors for airplanes not        per hour = $170,                                           (55 airplanes).
 identified in the Boeing          per monitor.
 service information).
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*An airplane may have up to 30 monitors.

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:

[[Page 5753]]

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-2025-0004; Project Identifier AD-
2024-00094-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by March 3, 2025.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 737-600, -700, -
700C, -800, -900, and -900ER series airplanes, certificated in any 
category, equipped with passenger service unit (PSU)-mounted video 
monitors.

(d) Subject

    Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.

(e) Unsafe Condition

    This AD was prompted by a report that some PSU-mounted video 
monitors became detached from the PSU rails during a hard landing 
that did not exceed the emergency load requirements for the PSUs. 
The FAA is issuing this AD to address PSU-mounted video monitors 
that could become fully detached or be held at an unsafe height, 
which, if not addressed, could result in injury to passengers and 
impede passenger and crew egress during emergency evacuation.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) For airplanes identified in Boeing Special Attention 
Requirements Bulletin 737-25-1851 RB, dated December 15, 2023: 
Except as specified by paragraph (h) of this AD, at the applicable 
times specified in the ``Compliance'' paragraph of Boeing Special 
Attention Requirements Bulletin 737-25-1851 RB, dated December 15, 
2023, do all applicable actions identified in, and in accordance 
with, the Accomplishment Instructions of Boeing Special Attention 
Requirements Bulletin 737-25-1851 RB, dated December 15, 2023.

    Note 1 to paragraph (g)(1): Guidance for accomplishing the 
actions required by paragraph (g)(1) of this AD can be found in 
Boeing Special Attention Service Bulletin 737-25-1851, dated 
December 15, 2023, which is referred to in Boeing Special Attention 
Requirements Bulletin 737-25-1851 RB, dated December 15, 2023.

    (2) For airplanes identified in Boeing Special Attention 
Requirements Bulletin 737-25-1858 RB, dated December 15, 2023: 
Except as specified by paragraph (h) of this AD, at the applicable 
times specified in the ``Compliance'' paragraph of Boeing Special 
Attention Requirements Bulletin 737-25-1858 RB, dated December 15, 
2023, do all applicable actions identified in, and in accordance 
with, the Accomplishment Instructions of Boeing Special Attention 
Requirements Bulletin 737-25-1858 RB, dated December 15, 2023.

    Note 2 to paragraph (g)(2): Guidance for accomplishing the 
actions required by paragraph (g)(2) of this AD can be found in 
Boeing Special Attention Service Bulletin 737-25-1858, dated 
December 15, 2023, which is referred to in Boeing Special Attention 
Requirements Bulletin 737-25-1858 RB, dated December 15, 2023.

    (3) For airplanes not identified in paragraph (g)(1) or (2) of 
this AD: Within 60 months after the effective date of this AD, 
replace all PSU-mounted video monitors that do not have secondary 
retention lanyards with PSU-mounted video monitors that have 
secondary retention lanyards, using a method approved in accordance 
with the procedures specified in paragraph (i) of this AD.

(h) Exceptions to Service Information Specifications

    (1) Where the Compliance Time columns of the tables in the 
``Compliance'' paragraph of Boeing Special Attention Requirements 
Bulletin 737-25-1851 RB, dated December 15, 2023, refers to the 
original issue date of Requirements Bulletin 737-25-1851 RB, this AD 
requires using the effective date of this AD.
    (2) Where the Compliance Time columns of the tables in the 
``Compliance'' paragraph of Boeing Special Attention Requirements 
Bulletin 737-25-1858 RB, dated December 15, 2023, refers to the 
original issue date of Requirements Bulletin 737-25-1858 RB, this AD 
requires using the effective date of this AD.
    (3) Where Boeing Special Attention Requirements Bulletins 737-
25-1851 RB and 737-25-1858, both dated December 15, 2023, specify 
contacting Boeing for alternative installation instructions and 
doing the installation: This AD requires doing the installation 
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)(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 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

    (1) For more information about this AD, contact Julie Linn, 
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 
98198; phone: 206-231-3584; email: [email protected].
    (2) Material identified in this AD that is not incorporated by 
reference is available at the address specified in paragraph (k)(3) 
this AD.

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the material listed in this 
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this material as applicable to do the actions 
required by this AD, unless the AD specifies otherwise.
    (i) Boeing Special Attention Requirements Bulletin 737-25-1851 
RB, dated December 15, 2023.
    (ii) Boeing Special Attention Requirements Bulletin 737-25-1858 
RB dated December 15, 2023.
    (3) For Boeing material 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 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 www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].

    Issued on January 8, 2025.
Suzanne Masterson,
Deputy Director, Integrated Certificate Management Division, Aircraft 
Certification Service.
[FR Doc. 2025-00825 Filed 1-16-25; 8:45 am]
BILLING CODE 4910-13-P
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