[Federal Register Volume 85, Number 36 (Monday, February 24, 2020)]
[Proposed Rules]
[Pages 10346-10349]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-03548]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0104; Product Identifier 2019-NM-210-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 BD-700-1A10 and BD-700-1A11 
airplanes. This proposed AD was prompted by a report that the anti-
fretting coating on the piston rods of certain ram air turbine (RAT) 
deployment actuators may have been incorrectly applied. This proposed 
AD would require a review of airplane maintenance records or an 
inspection of the RAT deployment actuator to determine the serial 
number and, depending on the findings, replacement with an upgraded RAT 
deployment actuator. 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 April 9, 
2020.

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, Inc., 400 C[ocirc]te Vertu Road West, Dorval, Qu[eacute]bec 
H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; email

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thd.crj@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 https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0104; 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: Thomas Niczky, Aerospace Engineer, 
Avionics and Electrical Systems Section, FAA, New York ACO Branch, 1600 
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7347; 
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-2020-0104; 
Product Identifier 2019-NM-210-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 comments received by the closing date and may amend this 
NPRM because of those comments.
    The FAA will post all comments, without change, to https://www.regulations.gov, including any personal information you provide. 
The FAA will also post a report summarizing each substantive verbal 
contact the agency receives about this NPRM.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2019-38, dated October 
30, 2019 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Model BD-700-1A10 and BD-700-1A11 airplanes. You 
may examine the MCAI in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0104.
    This proposed AD was prompted by a report that the anti-fretting 
coating on the piston rods of certain RAT deployment actuators may have 
been incorrectly applied. Incorrect application of this anti-fretting 
coating may lead to galling of the piston rod over time, which could 
cause the unit to seize and fail to fully deploy. The FAA is proposing 
this AD to address this condition which, if not corrected, could result 
in the inability to power essential systems in the event that other 
sources of power are also lost. See the MCAI for additional background 
information.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information, which 
describes procedures for inspecting the RAT deployment actuator to 
identify the serial number and replacing certain RAT deployment 
actuators with upgraded parts. These documents are distinct since they 
apply to different airplane models with different configurations.
     Bombardier Service Bulletin 700-1A11-24-029, dated 
February 22, 2019.
     Bombardier Service Bulletin 700-24-090, dated February 22, 
2019.
     Bombardier Service Bulletin 700-24-5015, dated February 
22, 2019.
     Bombardier Service Bulletin 700-24-6015, dated February 
22, 2019.
    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 Requirements of This NPRM

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

Costs of Compliance

    The FAA estimates that this proposed AD affects 380 airplanes of 
U.S. registry. The FAA estimates the following costs to comply with 
this proposed AD:

                                       Estimated Costs for Required Action
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                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
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1 work-hour x $85 per hour = $85.............................              $0              $85          $32,300
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                 Estimated Costs of On-Condition Actions
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          Labor cost                Parts cost        Cost per product
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5 work-hours x $85 per hour =   Up to $41,006....  Up to $41,431.
 $425.
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    According to the manufacturer, some or all of the costs of this 
proposed AD may be covered under warranty, thereby reducing the cost 
impact on affected individuals. The FAA does not control warranty 
coverage for affected individuals. As a result, the FAA has included 
all known costs in our cost estimate.

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

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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) 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 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-2020-0104; Product Identifier 2019-
NM-210-AD.

(a) Comments Due Date

    The FAA must receive comments by April 9, 2020.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11airplanes, certificated in any category, serial numbers 9002 
through 9828 inclusive, 9830, 9832 through 9835 inclusive, 9840, 
9854, 9855 and 9998.

(d) Subject

    Air Transport Association (ATA) of America Code 24, Electrical 
power.

(e) Reason

    This AD was prompted by a report that the anti-fretting coating 
on the piston rods of certain ram air turbine (RAT) deployment 
actuators may have been incorrectly applied. Incorrect application 
of this anti-fretting coating may lead to galling of the piston rod 
over time, which could cause the unit to seize and fail to fully 
deploy. The FAA is issuing this AD to address this condition which, 
if not corrected, could result in the inability to power essential 
systems in the event that other sources of power are also lost.

(f) Compliance

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

(g) Determine RAT Serial Number

    Within 36 months after the effective date of this AD: Perform an 
inspection to determine the serial number of the RAT deployment 
actuator, having part number (P/N) BZ02001-01 (GL456-1301-1). A 
review of the airplane maintenance records is acceptable in lieu of 
this inspection, provided the serial number of the RAT deployment 
actuator can be conclusively determined from that review.
    (1) If the serial number of the RAT deployment actuator is not 
listed in the table referred to in paragraph 2.B., Part A--Special 
Check, of the Accomplishment Instructions of the applicable 
Bombardier service information specified in figure 1 to paragraphs 
(g)(1) and (2), (h), and (i) of this AD, no further action is 
required by this AD.
[GRAPHIC] [TIFF OMITTED] TP24FE20.022

    (2) If the serial number of the RAT deployment actuator is 
listed in the table referred to in paragraph 2.B., Part A--Special 
Check, of the Accomplishment Instructions of the applicable 
Bombardier service information specified in figure 1 to

[[Page 10349]]

paragraphs (g)(1) and (2), (h), and (i) of this AD, do the 
replacement required by paragraph (h) of this AD.

(h) Replacement

    If during the inspection or records review required by paragraph 
(g) of this AD any RAT deployment actuator is found to have an 
affected serial number: Within 36 months after the effective date of 
this AD, replace the RAT deployment actuator, having P/N BZ02001-01 
(GL456-1301-1), with an upgraded part, in accordance with Paragraph 
2.C., Part B--Modification, of the Accomplishment Instructions of 
the applicable Bombardier service information specified in figure 1 
to paragraphs (g)(1) and (2), (h), and (i) of this AD.

(i) Parts Installation Prohibition

    As of the effective date of this AD, no person may install on 
any airplane, a RAT deployment actuator having P/N BZ02001-01 
(GL456-1301-1) with a serial number referred to in Paragraph 2.B., 
Part A--Special Check, of the Accomplishment Instructions, of the 
applicable Bombardier service information specified in figure 1 to 
paragraphs (g)(1) and (2), (h), and (i) 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 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 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) Canadian AD CF-2019-38, dated October 30, 2019, 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-2020-0104.
    (2) For more information about this AD, contact Thomas Niczky, 
Aerospace Engineer, Avionics and Electrical Systems Section, FAA, 
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7347; fax 516-794-5531; email 9-avs-nyaco-cos@faa.gov.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; email thd.crj@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 on February 18, 2020.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2020-03548 Filed 2-21-20; 8:45 am]
 BILLING CODE 4910-13-P


