Document ID: FAA-2022-0684-0001
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: Bombardier, Inc., Airplanes
Posted Date: 2022-06-21T04:00Z

[Federal Register Volume 87, Number 118 (Tuesday, June 21, 2022)]
[Proposed Rules]
[Pages 36783-36786]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-13170]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0684; Project Identifier MCAI-2021-01204-T]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc., 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 Bombardier, Inc., Model BD-700-2A12 airplanes. This 
proposed AD was prompted by a report of a lateral offset observed on 
the head-up display (HUD) of several airplanes between the synthetic 
vision system (SVS) and actual runway due to mechanical misalignment of 
the HUD during manufacturing and assembly. This proposed AD would 
require revising the existing Airplane Flight Manual (AFM) to prohibit 
steep approach landing (SAL) and enhanced flight vision system (EFVS) 
operations. This proposed AD would also require calibrating the HUD. 
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 5, 
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 Bombardier 
Business Aircraft Customer Response Center, 400 C[ocirc]te-Vertu Road 
West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; telephone 1-514-855-2999; 
email [email protected]; internet https://www.bombardier.com. 
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-2022-0684; 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.

FOR FURTHER INFORMATION CONTACT: Thomas Niczky, Aerospace Engineer, 
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7347; 
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-2022-0684; Project Identifier 
MCAI-2021-01204-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 
Thomas Niczky, Aerospace Engineer, Airframe and Mechanical Systems 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7347; 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

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued TCCA AD CF-2021-36, dated November 1, 
2021 (TCCA AD CF-2021-36) (also referred to after this as the Mandatory

[[Page 36784]]

Continuing Airworthiness Information, or the MCAI), to correct an 
unsafe condition for certain Bombardier, Inc., Model BD-700-2A12 
airplanes. You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2022-
0684.
    This proposed AD was prompted by a report indicating that during 
production, a lateral offset was observed on the HUD of several 
airplanes between the SVS and actual runway. An investigation 
determined the cause of the offset to be mechanical misalignment of the 
HUD during manufacturing and assembly. The FAA is proposing this AD to 
address a lateral offset between SVS and actual runway, which could 
create an incorrect aircraft reference display on the HUD and lead to 
excessive deviation during landing, particularly affecting SAL or EFVS 
operations. See the MCAI for additional background information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following documents to prohibit SAL and 
EFVS operations until the HUD has been calibrated.
     Section 6., Service Bulletins, of Chapter 1--Introduction, 
of the Bombardier Global 7500 AFM, Publication No. CSP 700-7000-1, 
Revision 14, dated October 21, 2021.
     Supplement 7--Enhanced Flight Vision System (EFVS) 
Operations, of Chapter 7--Supplements, of the Bombardier Global 7500 
AFM, Publication No. CSP 700-7000-1, Revision 14, dated October 21, 
2021.
     Supplement 20--Steep Approaches with Published Glidepath 
Angles from 4.5 to 5.5 Degrees, of Chapter 7--Supplements, of the 
Bombardier Global 7500 AFM, Publication No. CSP 700-7000-1, Revision 
14, dated October 21, 2021.
    (For obtaining this material in the Bombardier Global 7500 AFM, 
Publication No. CSP 700-7000-1, use Document Identification No. GL 7500 
AFM.)
    Bombardier has issued the following documents, which specify 
procedures for calibrating the HUD (and second HUD if installed). The 
procedures include an inspection of the HUD mounting brackets and sill 
beams for damage and contamination (e.g., drill shavings and adhesive) 
of the mating surfaces and injection holes, an inspection for voids in 
the structural adhesive, and applicable corrective actions. Corrective 
actions include replacing damaged brackets and backfilling voids with 
structural adhesive. These documents are distinct since they apply to 
different airplane configurations.
     Bombardier Service Bulletin 700-34-7521, Revision 03, 
dated July 27, 2021.
     Bombardier Service Bulletin 700-34-7521, Revision 04, 
dated December 6, 2021, including Appendix 1, dated November 10, 2021.
     Bombardier Service Bulletin 700-34-7523, Revision 01, 
dated December 8, 2021.
    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.

Other Related Service Information

    Earlier revisions of Service Bulletins 700-34-7521 and 700-34-7523 
included a typographical error on the metric values on the ``External 
Target Board'' table. This error was corrected in Bombardier Service 
Bulletin 700-34-7521, Revision 03, dated July 27, 2021; Bombardier 
Service Bulletin 700-34-7521, Revision 04, dated December 6, 2021, 
including Appendix 1, dated November 10, 2021; and Bombardier Service 
Bulletin 700-34-7523, Revision 01, dated December 8, 2021. This error 
is further described in the Retroactive Action section in these Service 
Bulletins. The FAA has determined that the earlier revisions would be 
acceptable for compliance with the proposed requirements under certain 
conditions in their entirety if imperial values were used. However, if 
the metric values specified in the earlier revisions were used, the HUD 
calibration is not considered completed for the purposes of Supplement 
7--Enhanced Flight Vision System (EFVS) Operations, and Supplement 20--
Steep Approaches with Published Glidepath Angles from 4.5 to 5.5 
Degrees, of Chapter 7--Supplements, of the Bombardier Global 7500 AFM, 
Publication No. CSP 700-7000-1, until retroactive actions are also done 
as specified in paragraphs (i)(1), (2), (3), and (5) of this proposed 
AD.

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 40 airplanes of U.S. registry. The FAA estimates the following 
costs to comply with this proposed AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                                   Cost on U.S.
             Action                     Labor cost            Parts cost       Cost per product      operators
----------------------------------------------------------------------------------------------------------------
HUD calibration................  39 work-hours (for 36    $7,400 per HUD....  $10,715 (1 HUD) or        $481,660
                                  airplanes with 1 HUD)                        $23,980 (2 HUDs).
                                  or 108 work-hours (for
                                  4 airplanes with 2
                                  HUDs) x $85 per hour.
AFM revision...................  1 work-hour x $85 per    $0................  $85...............           3,400
                                  hour.
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    The FAA estimates that replacement brackets would cost up to $1,200 
(per HUD) if required for any on-condition corrective actions in this 
proposed AD. The FAA has received no definitive data on which to base 
the work-hour estimates for this replacement. The FAA has no way of 
determining the number of aircraft that might need this on-condition 
action.
    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

[[Page 36785]]

reducing the cost impact on affected operators.

Paperwork Reduction Act

    A federal agency may not conduct or sponsor, and a person is not 
required to respond to, nor shall a person be subject to penalty for 
failure to comply with a collection of information subject to the 
requirements of the Paperwork Reduction Act unless that collection of 
information displays a currently valid OMB Control Number. The OMB 
Control Number for this information collection is 2120-0056. The time 
for public reporting for this collection of information, including 
reviewing instructions, searching existing data sources, gathering and 
maintaining the data needed, and completing and reviewing the 
collection of information, is provided in the Costs of Compliance 
section already described. All responses to this collection of 
information are mandatory. Send comments regarding this burden estimate 
or any other aspect of this collection of information, including 
suggestions for reducing this burden, to Information Collection 
Clearance Officer, Federal Aviation Administration, 10101 Hillwood 
Parkway, Fort Worth, TX 76177-1524.

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:

Bombardier, Inc.: Docket No. FAA-2022-0684; Project Identifier MCAI-
2021-01204-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by August 5, 2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-700-2A12 
airplanes, certificated in any category, serial numbers 70006 
through 70084 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 34, Navigation.

(e) Unsafe Condition

    This AD was prompted by a report of a lateral offset observed on 
the head-up display (HUD) of several airplanes between the synthetic 
vision system (SVS) and actual runway. The FAA is issuing this AD to 
address this offset, which could create an incorrect aircraft 
reference display on the HUD, and lead to excessive deviation during 
landing, particularly affecting steep approach landing (SAL) or 
enhanced flight vision system (EFVS) operations.

(f) Compliance

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

(g) Revision of the Existing Airplane Flight Manual (AFM)

    Within 30 days after the effective date of this AD, revise the 
existing AFM to include the information in the sections of the AFM 
specified in paragraphs (g)(1) through (3) of this AD.
    (1) Section 6., Service Bulletins, of Chapter 1--Introduction, 
of the Bombardier Global 7500 AFM, Publication No. CSP 700-7000-1, 
Revision 14, dated October 21, 2021.
    Note 1 to paragraph (g)(1): For obtaining the sections of the 
Bombardier Global 7500 AFM, Publication No. CSP 700-7000-1, 
specified in paragraphs (g)(1) through (3) of this AD, use Document 
Identification No. GL 7500 AFM.
    (2) Supplement 7--Enhanced Flight Vision System (EFVS) 
Operations, of Chapter 7--Supplements, of the Bombardier Global 7500 
AFM, Publication No. CSP 700-7000-1, Revision 14, dated October 21, 
2021.
    (3) Supplement 20--Steep Approaches with Published Glidepath 
Angles from 4.5 to 5.5 Degrees, of Chapter 7--Supplements, of the 
Bombardier Global 7500 AFM, Publication No. CSP 700-7000-1, Revision 
14, dated October 21, 2021.

(h) HUD Calibration

    Within 27 months after the effective date of this AD, calibrate 
the HUD and second HUD (if installed), including a general visual 
inspection of the of the HUD mounting brackets and sill beams for 
damage and contamination (e.g., drill shavings and adhesive) of the 
mating surfaces and injection holes, a general visual inspection for 
voids in the structural adhesive, and applicable corrective actions, 
in accordance with the Accomplishment Instructions of Bombardier 
Service Bulletin 700-34-7521, Revision 04, dated December 6, 2021, 
including Appendix 1, dated November 10, 2021; and Bombardier 
Service Bulletin 700-34-7523, Revision 01, dated December 8, 2021; 
as applicable. All corrective actions must be done before further 
flight.

(i) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph 
(h) of this AD, if those actions were performed before the effective 
date of this AD using the service information identified in, and 
meeting the applicable conditions specified in, paragraphs (i)(1) 
through (5) of this AD.
    (1) Credit is allowed for Bombardier Service Bulletin 700-34-
7521, dated April 1, 2021, if the retroactive actions identified in 
Bombardier Service Bulletin 700-34-7521, Revision 03, dated July 27, 
2021; or Bombardier Service Bulletin 700-34-7521, Revision 04, dated 
December 6, 2021; are done within 27 months after the effective date 
of this AD.
    (2) Credit is allowed for Bombardier Service Bulletin 700-34-
7521, Revision 01, dated April 30, 2021, if the retroactive actions 
identified in Bombardier Service Bulletin 700-34-7521, Revision 03, 
dated July 27, 2021; or Bombardier Service Bulletin 700-34-7521, 
Revision 04, dated December 6, 2021; are done within 27 months after 
the effective date of this AD.
    (3) Credit is allowed for Bombardier Service Bulletin 700-34-
7521, Revision 02,

[[Page 36786]]

dated July 12, 2021, if the retroactive actions identified in 
Bombardier Service Bulletin 700-34-7521, Revision 03, dated July 27, 
2021; or Bombardier Service Bulletin 700-34-7521, Revision 04, dated 
December 6, 2021; are done within 27 months after the effective date 
of this AD.
    (4) Credit is allowed for Bombardier Service Bulletin 700-34-
7521, Revision 3, dated July 27, 2021.
    (5) Credit is allowed for Bombardier Service Bulletin 700-34-
7523, dated April 1, 2021, if the retroactive actions identified in 
Bombardier Service Bulletin 700-34-7523, Revision 01, dated December 
8, 2021, are done within 27 months after the effective date of this 
AD.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York 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 ATTN: Program Manager, Continuing Operational 
Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7300. 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, New York ACO 
Branch, FAA; or Transport Canada Civil Aviation (TCCA); or 
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(k) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) TCCA AD CF-2021-36, dated November 1, 2021, for related 
information. This MCAI may be found in the AD docket on the internet 
at https://www.regulations.gov by searching for and locating Docket 
No. FAA-2022-0684.
    (2) For more information about this AD, contact Thomas Niczky, 
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7347; email [email protected].
    (3) For service information identified in this AD, contact 
Bombardier Business Aircraft Customer Response Center, 400 
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada; 
telephone 1-514-855-2999; email [email protected]; internet 
https://www.bombardier.com. 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 June 13, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2022-13170 Filed 6-17-22; 8:45 am]
BILLING CODE 4910-13-P