92612 Federal Register / Vol. 89, No. 226 / Friday, November 22, 2024 / Proposed Rules 

(h) 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 (i) of this AD. 

Information may be emailed to: AMOC@

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. 

(i) Related Information 

For more information about this AD, 

contact Katherine Venegas, Aviation Safety 

Engineer, FAA, 3960 Paramount Boulevard, 

Lakewood, CA 90712; phone: 562–627–5353; 

email: katherine.venegas@faa.gov. 

(j) Material Incorporated by Reference 

None. 

Issued on November 18, 2024. 

Peter A. White, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–27330 Filed 11–21–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2410; Project 

Identifier AD–2024–00509–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 

787–8, 787–9, and 787–10 airplanes. 

This proposed AD was prompted by 

possible horizontal stabilizer pivot pin 

lockring, outer pivot pin, and outboard 

spacer misalignment at final assembly. 

This proposed AD would require 

inspection of the left-side and right-side 

horizontal stabilizer pivot pin 

assemblies for misalignment and 

incorrect gapping, 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 January 6, 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–2024–2410; 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 Boeing 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–2024–2410. 

FOR FURTHER INFORMATION CONTACT: 

Joseph Hodgin, Aviation Safety 

Engineer, FAA, 2200 South 216th St., 

Des Moines, WA 98198; phone: 206– 

231–3962; email: Joseph.J.Hodgin@

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 the ADDRESSES section. Include 

‘‘Docket No. FAA–2024–2410; Project 

Identifier AD–2024–00509–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 Joseph Hodgin, 

Aviation Safety Engineer, FAA, 2200 

South 216th St., Des Moines, WA 98198; 

phone: 206–231–3962; email: 

Joseph.J.Hodgin@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 possible horizontal stabilizer 

pivot pin lockring, outer pivot pin, and 

outboard spacer misalignment at final 

assembly. One operator further reported 

a left side pivot assembly that did not 

have a visible gap between the outboard 

nut and trap fitting. A misaligned pivot 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 89, No. 226 / Friday, November 22, 2024 / Proposed Rules 92613 

pin lockring caused a pivot pin 

outboard spacer to not be set flush 

against the horizontal stabilizer pivot 

bearing and outboard washer. Decreased 

lateral load capacity can cause the loss 

of pivot pin retention parts. This 

condition, if not addressed, could result 

in the loss of the horizontal stabilizer 

and continued safe flight & 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. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

The FAA reviewed Boeing Alert 

Requirements Bulletin B787–81205– 

SB550013–00 RB, Issue 001, dated 

August 30, 2024. This material specifies 

procedures for a detailed inspection of 

the left-side and right-side horizontal 

stabilizer pivot pin assemblies for 

misalignment and incorrect gapping and 

applicable on-condition actions. Oncondition actions include replacement 

of the left or right horizontal stabilizer 

pivot pin assembly if any misalignment 

or incorrect gapping is found. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 

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. For information on the 

procedures and compliance times, see 

this material at regulations.gov under 

Docket No. FAA–2024–2410. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 145 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection ................................ 2 work-hours × $85 per hour = $170 ..................................... $0 $170 $24,650 

The FAA estimates the following 

costs to do any necessary replacements 

that would be required based on the 

results of the proposed inspection. The 

agency has no way of determining the 

number of aircraft that might need this 

replacement: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Replacement .................................... 12 work-hours × $85 per hour = $1,020 ................................................... $47,730 $48,750 

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 

■ 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– 

2024–2410; Project Identifier AD–2024– 

00509–T. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
92614 Federal Register / Vol. 89, No. 226 / Friday, November 22, 2024 / Proposed Rules 

1Petition of the United States Postal Service to 

Initiate a Proceeding to Change Analytical 

Principles and Notice of Filing Non-Public 

Materials, November 13, 2024 (Petition). The 

proposed change is attached to the Petition 

(Proposal). 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by January 6, 

2025. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 787–8, 787–9, and 787–10 airplanes, 

certificated in any category, as identified in 

Boeing Alert Requirements Bulletin B787– 

81205–SB550013–00 RB, Issue 001, dated 

August 30, 2024. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 55, Stabilizers. 

(e) Unsafe Condition 

This AD was prompted by possible 

misalignment, at final assembly, of the 

horizontal stabilizer pivot pin lockring, outer 

pivot pin, and outboard spacer. The FAA is 

issuing this AD to address a pivot pin 

outboard spacer that is not set correctly flush 

against the horizontal stabilizer pivot bearing 

and outboard washer, caused by a misaligned 

pivot pin lockring. The unsafe condition, if 

not addressed, could result in decreased 

lateral load capacity, which could cause the 

loss of pivot pin retention parts and lead to 

loss of the horizontal stabilizer and 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 times specified in the 

‘‘Compliance’’ paragraph of Boeing Alert 

Requirements Bulletin B787–81205– 

SB550013–00 RB, Issue 001, dated August 

30, 2024, do all applicable actions identified 

in, and in accordance with, the 

Accomplishment Instructions of Boeing Alert 

Requirements Bulletin B787–81205– 

SB550013–00 RB, Issue 001, dated August 

30, 2024. 

Note 1 to paragraph (g): Guidance for 

accomplishing the actions required by this 

AD can be found in Boeing Alert Service 

Bulletin B787–81205–SB550013–00, Issue 

001, dated August 30, 2024, which is referred 

to in Boeing Alert Requirements Bulletin 

B787–81205–SB550013–00 RB, Issue 001, 

dated August 30, 2024. 

(h) Exception to Requirements Bulletin 

Specifications 

Where the Compliance Time columns of 

the tables in the ‘‘Compliance’’ paragraph of 

Boeing Alert Requirements Bulletin B787– 

81205–SB550013–00 RB, Issue 001, dated 

August 30, 2024, refers to the Issue 001 date 

of Requirements Bulletin B787–81205– 

SB550013–00 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 

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: AMOC@

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. 

(j) Related Information 

(1) For more information about this AD, 

contact Joseph Hodgin, Aviation Safety 

Engineer, FAA, 2200 South 216th St., Des 

Moines, WA 98198; phone: 206–231–3962; 

email: Joseph.J.Hodgin@faa.gov. 

(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 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 Alert Requirements Bulletin 

B787–81205–SB550013–00 RB, Issue 001, 

dated August 30, 2024. 

(ii) [Reserved] 

(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 fr.inspection@nara.gov. 

Issued on November 12, 2024. 

Peter A. White, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–27327 Filed 11–21–24; 8:45 am] 

BILLING CODE 4910–13–P 

POSTAL REGULATORY COMMISSION 

39 CFR Part 3050 

[Docket No. RM2025–4; Order No. 8002] 

Periodic Reporting 

AGENCY: Postal Regulatory Commission. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Commission is 

acknowledging a recent Postal Service 

filing requesting the Commission 

initiate a rulemaking proceeding to 

consider changes to analytical 

principles relating to periodic reports. 

This document informs the public of the 

filing, invites public comment, and 

takes other administrative steps. 

DATES: Comments are due: December 

10, 2024. 

ADDRESSES: Submit comments 

electronically via the Commission’s 

Filing Online system at https://

www.prc.gov. Those who cannot submit 

comments electronically should contact 

the person identified in the FOR FURTHER

INFORMATION CONTACT section by 

telephone for advice on filing 

alternatives. 

FOR FURTHER INFORMATION CONTACT: 

David A. Trissell, General Counsel, at 

202–789–6820. 

SUPPLEMENTARY INFORMATION: 

Table of Contents 

I. Introduction 

II. Proposal 

III. Notice and Comment 

IV. Ordering Paragraphs 

I. Introduction 

On November 13, 2024, the Postal 

Service filed a petition pursuant to 39 

CFR 3050.11 requesting that the 

Commission initiate a rulemaking 

proceeding to consider changes to 

analytical principles relating to periodic 

reports.1 The Petition presents a 

methodology for developing shapespecific labor productivity data for nonMODS manual distribution activities 

using eFlash volumes and workhours 

derived from costs for the corresponding 

In-Office Cost System (IOCS)-based nonMODS cost pools. Petition at 1. 

II. Proposal 

Background. The Postal Service states 

that measuring labor productivity 

associated with manual letter and flat 

distribution operations ‘‘is a 

longstanding challenge for modeling the 


ddrumheller on DSK120RN23PROD with PROPOSALS1