Document ID: FAA-2020-1031-0003
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: The Boeing Company Airplanes
Posted Date: 2020-12-14T05:00Z

[Federal Register Volume 85, Number 240 (Monday, December 14, 2020)]
[Rules and Regulations]
[Pages 80589-80590]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-27507]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-1031; Project Identifier AD-2020-00846-T; 
Amendment 39-21334; AD 2020-24-04]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; correction.

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SUMMARY: The FAA is correcting an airworthiness directive (AD) that 
published in the Federal Register. That AD applies to all The Boeing 
Company Model 787-8, 787-9, and 787-10 airplanes. As published, the 
regulatory text of the AD included errors in certain references to the 
airplane flight manual (AFM) that is required to be revised. This 
document corrects those errors. In all other respects, the original 
document remains the same.

DATES: This correction is effective December 18, 2020. The effective 
date of AD 2020-24-04 remains December 18, 2020.

ADDRESSES: You may examine the AD docket at https://www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this final rule, any comments 
received, and other information. The address for Docket Operations is 
U.S. Department of Transportation, Docket Operations, M-30, West 
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Frank Carreras, Aerospace Engineer, 
Systems and Equipment Section, FAA, Seattle ACO Branch, 2200 South 
216th St., Des Moines, WA 98198; phone and fax: 206-231-3539; email: 
frank.carreras@faa.gov.

SUPPLEMENTARY INFORMATION: As published, Airworthiness Directive 2020-
24-04, Amendment 39-21334 (85 FR 77991, December 3, 2020), requires 
revising the existing AFM to incorporate procedures for conducting an 
approach with a localizer-based navigation aid, monitoring localizer 
raw data, calling out any significant deviations, and performing an 
immediate go around if the airplane has not intercepted the final 
approach course as shown by the localizer deviation. AD 2020-24-04 
applies to all The Boeing Company Model 787-8, 787-9, and 787-10 
airplanes.
    As published, the regulatory text included errors in certain 
references to the AFM that is required to be revised. The location of 
the AFM text to be revised is incorrectly identified as the 
``Limitations section''; the correct location is the ``Operating 
Procedures chapter.'' In addition, the figure incorrectly identified 
the heading of the AFM text as ``Operating Instructions''; the correct 
heading is ``Autopilot Flight Director System--Operating 
Instructions.''

Correction of Publication

    This document corrects an error and correctly adds the AD as an 
amendment to 14 CFR 39.13. Although no other part of the preamble or 
regulatory information has been corrected, the FAA is publishing the 
entire rule in the Federal Register.
    The effective date of this AD remains December 18, 2020.
    Since this action only corrects errors in certain AFM references, 
it has no adverse economic impact and imposes no additional burden on 
any person. Therefore, the FAA has determined that notice and public 
comment procedures are unnecessary.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Correction

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the Federal Aviation Administration amends part 39 of 
the Federal Aviation Regulations (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   [Corrected]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2020-24-04 The Boeing Company: Amendment 39-21334; Docket No. FAA-
2020-1031; Project Identifier AD-2020-00846-T.

(a) Effective Date

    This AD is effective December 18, 2020.

(b) Affected ADs

    None.

[[Page 80590]]

(c) Applicability

    This AD applies to all The Boeing Company Model 787-8, 787-9, 
and 787-10 airplanes, certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code 22, Auto flight.

(e) Unsafe Condition

    This AD was prompted by reports indicating that the autopilot 
flight director system (AFDS) failed to transition to the instrument 
landing system localizer (LOC) beam after the consistent localizer 
capture function in the flight control modules initiated a 
transition to capture LOC during approach. The FAA is issuing this 
AD to address the AFDS failing to transition, which could result in 
localizer overshoot leading to glideslope descent on the wrong 
heading. Combined with a lack of flight deck effects for a 
consistent localizer capture mode failure, this condition could 
result in a controlled flight into terrain.

(f) Compliance

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

(g) Revise the Airplane Flight Manual (AFM)

    Within 14 days after the effective date of this AD, revise the 
Operating Procedures chapter of the existing AFM and applicable 
corresponding operational procedures to incorporate the procedures 
specified in figure 1 to paragraph (g) of this AD. Revising the 
existing AFM to include the changes specified in paragraph (g) of 
this AD may be done by inserting a copy of figure 1 to paragraph (g) 
of this AD into the existing AFM.
[GRAPHIC] [TIFF OMITTED] TR14DE20.092

(h) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request 
to your principal inspector or 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: 9-ANM-Seattle-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, Seattle 
ACO 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 Frank Carreras, 
Aerospace Engineer, Systems and Equipment Section, FAA, Seattle ACO 
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 
206-231-3539; email: frank.carreras@faa.gov.

(j) Material Incorporated by Reference

    None.

    Issued on December 9, 2020.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2020-27507 Filed 12-10-20; 11:15 am]
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