[Federal Register Volume 84, Number 155 (Monday, August 12, 2019)]
[Proposed Rules]
[Pages 39778-39782]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-16808]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0582; Product Identifier 2019-NM-034-AD]
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 CL-600-1A11 (600), CL-600-2A12 
(601), and CL-600-2B16 (601-3A and 601-3R Variants) airplanes. This 
proposed AD was prompted by reports of the loss of all air data system 
information provided to the flightcrew, which was caused by icing at 
high altitudes. This proposed AD would require revising the exisitng 
airplane flight manual (AFM) to provide the flightcrew with procedures 
for ``Unreliable Airspeed'' that stabilize the airplane's airspeed and 
attitude. 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 September 
26, 2019.

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 http://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, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 2A3, Canada; North America toll-free telephone 1-866-538-1247 or 
direct-dial telephone 1-514-855-2999; email ac.yul@aero.bombardier.com; 
internet http://www.bombardier.com. You may view this service 
information at the FAA, Transport Standards 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 on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0582; 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 regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations is listed above. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: John DeLuca, Aerospace Engineer, 
Avionics and Electrical Systems Services Section, FAA, New York ACO 
Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 
516-228-7369; fax 516-794-5531; email 9-avs-nyaco-cos@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-2019-0582; 
Product Identifier 2019-NM-034-AD'' at the beginning of your comments. 
The FAA specifically invites comments on the overall regulatory, 
economic, environmental, and energy aspects of this NPRM. The FAA will 
consider all

[[Page 39779]]

comments received by the closing date and may amend this NPRM because 
of those comments.
    The FAA will post all comments received, without change, to http://www.regulations.gov, including any personal information you provide. 
The FAA will also post a report summarizing each substantive verbal 
contact received about this NPRM.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2018-36, dated December 
27, 2018 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-
600-2A12 (601), and CL-600-2B16 (601-3A and 601-3R Variants) airplanes. 
The MCAI states:

    A number of in-service incidents have been reported on CL-600-
2C10 aeroplanes regarding the loss of all air data system 
information provided to the crew. The air data system information 
was recovered as the aeroplanes descended to lower altitudes. An 
investigation determined that the root cause in both events was high 
altitude icing (ice crystal contamination). If not recognized and 
addressed, this condition may affect continued safe flight and 
landing.
    Due to similarities in the air data systems, similar events 
could also occur on Bombardier Inc. CL-600-1A11, CL-600-2A12 and CL-
600-2B16 aeroplanes.
    This [Canadian] AD mandates the incorporation of Airplane Flight 
Manual (AFM) procedures that will allow the crew to stabilize the 
aeroplane's airspeed and attitude for continued safe flight and 
landing.

    You may examine the MCAI in the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0582.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information, which 
provides a procedure for ``Unreliable Airspeed'' in the Emergency 
Procedures section of the applicable AFM.
     Canadair Challenger CL-600-1A11 AFM, Product Publication 
(PP) 600, Revision A111, dated August 31, 2018.
     Canadair Challenger CL-600-1A11 (Winglets) AFM, Product 
Support Publication (PSP) 600-1, Revision 103, dated August 31, 2018.
     Canadair Challenger CL-600-2A12 AFM, PSP 601-1A, Revision 
120, dated August 31, 2018.
     Canadair Challenger CL-600-2A12 AFM, PSP 601-1A-1, 
Revision 79, dated August 31, 2018.
     Canadair Challenger CL-600-2A12 AFM, PSP 601-1B, Revision 
83, dated August 31, 2018.
     Canadair Challenger CL-600-2A12 AFM, PSP 601-1B-1, 
Revision 81, dated August 31, 2018.
     Canadair Challenger CL-600-2B16 AFM, PSP 601A-1, Revision 
103, dated August 31, 2018.
     Canadair Challenger CL-600-2B16 AFM, PSP 601A-1-1, 
Revision 92, dated August 31, 2018.
    These documents are distinct since they apply to different airplane 
models in different configurations. 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 a 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 agency 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 Requirements of This NPRM

    This proposed AD would require revising the existing AFM with 
procedures for ``Unreliable Airspeed'' in the Emergency Procedures 
section of the applicable AFM as described previously.

Costs of Compliance

    The FAA estimates that this proposed AD affects 206 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
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85.............................              $0              $85          $17,510
----------------------------------------------------------------------------------------------------------------

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.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes and associated appliances to the 
Director of the System Oversight Division.

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) Will not affect intrastate aviation in Alaska, and
    (3) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities

[[Page 39780]]

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 (AD):

Bombardier, Inc.: Docket No. FAA-2019-0582; Product Identifier 2019-
NM-034-AD.

(a) Comments Due Date

    The FAA must receive comments by September 26, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., airplanes, certificated in 
any category, identified in paragraphs (c)(1) through (c)(3) of this 
AD.
    (1) Model CL-600-1A11 (600), serial numbers 1001 through 1085 
inclusive.
    (2) Model CL-600-2A12 (601), serial numbers 3001 through 3066 
inclusive.
    (3) Model CL-600-2B16 (601-3A and 601-3R Variants), serial 
numbers 5001 through 5194 inclusive.

(d) Subject

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

(e) Reason

    This AD was prompted by reports of the loss of all air data 
system information provided to the flightcrew, which was caused by 
icing at high altitudes. The FAA is issuing this AD to address the 
loss of all air data system information provided to the flightcrew. 
If not addressed, this condition may adversely affect continued safe 
flight and landing.

(f) Compliance

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

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

    Within 30 days after the effective date of this AD: Revise the 
Emergency Procedures section of the existing AFM to include the 
information in the ``Unreliable Airspeed'' procedure of the 
applicable AFM specified in figure 1 to paragraph (g) of this AD.
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(h) 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 local Flight Standards District 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; fax 516-794-5531. Before 
using any approved AMOC, notify your appropriate principal 
inspector, or lacking a principal inspector, the manager of the 
local flight standards district office/certificate holding district 
office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain corrective actions from a manufacturer, the action 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.

(i) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2018-36, dated December 27, 2018, for related 
information. This MCAI may be found in the AD docket on the internet 
at http://www.regulations.gov by searching for and locating Docket 
No. FAA-2019-0582.
    (2) For more information about this AD, contact John DeLuca, 
Aerospace Engineer, Avionics and Electrical Systems Services 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone 516-228-7369; fax 516-794-5531; email 
9-avs-nyaco-cos@faa.gov.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 200 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 2A3, Canada; North America toll-free telephone 1-
866-538-1247 or direct-dial telephone 1-514-855-2999; email 
ac.yul@aero.bombardier.com; internet http://www.bombardier.com. You 
may view this service information at the FAA, Transport Standards 
Branch, 2200 South 216th St., Des Moines, WA. For information on the 
availability of this material at the FAA, call 206-231-3195.

    Issued in Des Moines, Washington, on July 26, 2019.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2019-16808 Filed 8-9-19; 8:45 am]
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