Document ID: FAA-2022-1053-0001
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: BAE Systems (Operations) Limited Airplanes
Posted Date: 2022-08-22T04:00Z

[Federal Register Volume 87, Number 161 (Monday, August 22, 2022)]
[Proposed Rules]
[Pages 51271-51273]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-17985]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-1053; Project Identifier MCAI-2022-00200-T]
RIN 2120-AA64

Airworthiness Directives; BAE Systems (Operations) Limited 
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 all BAE Systems (Operations) Limited Model BAe 146 series 
airplanes. This proposed AD was prompted by a finding that when the 
autopilot is engaged, the architecture of the autopilot system does not 
automatically disconnect the autopilot in response to pilot application 
of a pitch input or when the electric pitch trim switch on either pilot 
control wheel is operated. This proposed AD would require modifying the 
autopilot engagement circuit. 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 October 6, 
2022.

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 https://www.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.
    For service information identified in this NPRM, contact BAE 
Systems (Operations) Limited, Customer Information Department, 
Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United 
Kingdom; telephone +44 1292 675207; fax +44 1292 675704; email 
[email protected]; internet https://www.baesystems.com/Businesses/RegionalAircraft/index.htm. 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.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2022-1053; 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, the 
mandatory continuing airworthiness information (MCAI), any comments 
received, and other information. The street address for Docket 
Operations is listed above.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, 
Large Aircraft Section, FAA, International Validation Branch, 2200 
South 216th St., Des Moines, WA 98198; telephone 206-231-3228; 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-2022-1053; Project Identifier 
MCAI-2022-00200-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 
the 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 
https://www.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 Todd 
Thompson, Aerospace Engineer, Large Aircraft Section, FAA, 
International Validation Branch, 2200 South 216th St., Des Moines, WA 
98198; telephone 206-231-3228; email [email protected]. Any 
commentary that the FAA receives which is not specifically designated 
as CBI will be placed in the public docket for this rulemaking.

Background

    United Kingdom Civil Aviation Authority (U.K. CAA), which is the 
aviation authority for the United Kingdom, has issued U.K. CAA AD G-
2022-0002, dated February 11, 2022 (U.K. CAA AD G-2022-0002) (also 
referred to after this as the MCAI), to correct an unsafe condition for 
all BAE Systems (Operations) Limited Model BAe 146 series airplanes. 
You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2022-
1053.
    This proposed AD was prompted by a finding that when the autopilot 
is engaged, the architecture of the autopilot system does not 
automatically disconnect the autopilot in response to pilot application 
of a pitch input or when the electric pitch trim switch on either pilot 
control wheel is operated. This finding was a result of a safety 
recommendation made by the United Kingdom's Air Accidents Investigation 
Branch (AAIB), after an incident on a

[[Page 51272]]

Saab AB, Support and Services Model SAAB 2000 airplane, for the 
European Union Aviation Safety Agency (EASA) to review autopilot system 
designs of aircraft certified under certain regulations, and if needed, 
require modifications to ensure that the autopilot does not create a 
potential unsafe condition when the flightcrew applies an override 
force to the flight controls. The FAA is proposing this AD to address 
continued autopilot engagement after flightcrew input to disengage of 
the autopilot, which could lead to reduced controllability of the 
airplane. See the MCAI for additional background information.

Related Service Information Under 1 CFR Part 51

    BAE Systems (Operations) Limited has issued Modification Service 
Bulletin SB.22-072-36262A, dated September 14, 2021. This service 
information describes procedures for modifying the autopilot engagement 
circuit, including the wiring, relay, and certain module blocks. 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 the ADDRESSES section.

FAA's Determination

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to the FAA's bilateral agreement with the State of Design Authority, 
the FAA has been notified of the unsafe condition described in the MCAI 
and service information referenced above. The FAA is proposing this AD 
because the FAA evaluated all the relevant information and determined 
the unsafe condition described previously is likely to exist or develop 
on other products of the same type design.

Proposed AD Requirements in This NPRM

    This proposed AD would require accomplishing the actions specified 
in the service information already described.

Costs of Compliance

    The FAA estimates that this AD, if adopted as proposed, would 
affect 20 airplanes of U.S. registry. The FAA estimates the following 
costs to comply with this proposed AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
130 work-hours x $85 per hour= $11,050.......................          $2,124          $13,174         $263,480
----------------------------------------------------------------------------------------------------------------

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:

BAE Systems (Operations) Limited: Docket No. FAA-2022-1053; Project 
Identifier MCAI-2022-00200-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by October 6, 2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all BAE Systems (Operations) Limited Model 
BAe 146-100A, -200A, and -300A 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 a finding that when the autopilot is 
engaged, the architecture of the autopilot system does not 
automatically disconnect the autopilot in response to pilot 
application of a pitch input or when the electric pitch trim switch 
on either pilot control wheel is operated. The FAA is issuing this 
AD to address continued autopilot engagement after flightcrew input 
to disengage the autopilot, which could lead to reduced 
controllability of the airplane.

(f) Compliance

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

(g) Modification

    Within 12 months after the effective date of this AD, modify the 
autopilot engagement circuit in accordance with the Accomplishment 
Instructions of BAE Systems (Operations) Limited Modification 
Service Bulletin SB.22-072-36262A, dated September 14, 2021.

(h) No Reporting Requirement

    Although BAE Systems (Operations) Limited Modification Service 
Bulletin SB.22-

[[Page 51273]]

072-36262A, dated September 14, 2021, specifies to submit certain 
information to the manufacturer, this AD does not include that 
requirement.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Large Aircraft Section, International Validation 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 Large Aircraft Section, International Validation Branch, send it 
to the attention of the person identified in paragraph (j)(2) of 
this AD. Information may be emailed to: [email protected]. 
Before using any approved AMOC, notify your appropriate principal 
inspector, or lacking a principal inspector, the manager of the 
responsible Flight Standards Office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain instructions from a manufacturer, the instructions must be 
accomplished using a method approved by the Manager, Large Aircraft 
Section, International Validation Branch, FAA; or the United Kingdom 
Civil Aviation Authority (U.K. CAA); or BAE Systems (Operations) 
Limited's U.K. CAA Design Organization Approval (DOA). If approved 
by the DOA, the approval must include the DOA-authorized signature.

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) U.K. CAA AD G-2022-0002, dated February 11, 2022, for related 
information. This MCAI may be found in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-
2022-1053.
    (2) For more information about this AD, contact Todd Thompson, 
Aerospace Engineer, Large Aircraft Section, FAA, International 
Validation Branch, 2200 South 216th St., Des Moines, WA 98198; 
telephone 206-231-3228; email [email protected].
    (3) For service information identified in this AD, contact BAE 
Systems (Operations) Limited, Customer Information Department, 
Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United 
Kingdom; telephone +44 1292 675207; fax +44 1292 675704; email 
[email protected]; internet https://www.baesystems.com/Businesses/RegionalAircraft/index.htm. 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.

    Issued on August 10, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2022-17985 Filed 8-19-22; 8:45 am]
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