[Federal Register Volume 81, Number 136 (Friday, July 15, 2016)]
[Proposed Rules]
[Pages 45992-45994]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-16733]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-7427; Directorate Identifier 2016-NM-041-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: We propose to supersede Airworthiness Directive (AD) 2013-02-
08, for all Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 
& 440) airplanes. AD 2013-02-08 currently requires inspecting the 
trunnions and upper and lower pins of the horizontal stabilizer trim 
actuator (HSTA), and replacement or re-identification if necessary; and 
revising the maintenance program to include safe life limits and 
inspection requirements for the HSTA. Since we issued AD 2013-02-08, we 
determined that not all affected attachment pins and trunnions were 
included in the required inspections. In addition, for certain 
airplanes on which the replacement in AD 2013-02-08 was done, incorrect 
attachment hardware may have been used. This proposed AD would require 
measuring the diameter of certain bolts and attach holes, and, as 
applicable, measuring the diameter of the attach holes in the trunnions 
and pins, doing detailed visual inspections of the trunnions, pins, and 
spacers, doing corrective actions, and re-identifying trunnions and 
pins. This proposed AD also requires revising the maintenance or 
inspection program. This proposed AD also removes certain airplanes 
from the applicability. We are proposing this AD to prevent failure of 
the attachment pins and trunnions of the HSTA. This condition could 
result in separation of the horizontal stabilizer, and consequent loss 
of control of the airplane.

DATES: We must receive comments on this proposed AD by August 29, 2016.

ADDRESSES: You may send comments 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: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, 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 
[email protected]; Internet http://www.bombardier.com. You 
may view this referenced service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information 
on the availability of this material at the FAA, call 425-227-1221.

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-2016-
7427; 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 proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Operations office (telephone 800-647-5527) is in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7318; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2016-7427; 
Directorate Identifier 2016-NM-041-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On, January 16, 2013, we issued AD 2013-02-08, Amendment 39-17329 
(78 FR 7647, February 4, 2013) (``AD 2013-02-08''). AD 2013-02-08 
requires actions intended to address an unsafe condition on all 
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) 
airplanes.
    Since we issued AD 2013-02-08, we have determined that not all 
affected attachment pins and trunnions were included in the required 
inspections of AD 2013-02-08. In addition, for airplanes on which 
certain service information was incorporated, incorrect attachment 
hardware may have been used to re-install the HSTA attachment pins and 
trunnions.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-08, dated March 30, 2016 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for certain Bombardier, Inc. Model CL-600-2B19 
(Regional Jet Series 100 & 440) airplanes. The MCAI states:


[[Page 45993]]


    After the issuance of [Canadian] AD CF-2011-45, it was 
discovered that the [Canadian] AD did not address all affected 
Horizontal Stabilizer Tim Actuator (HSTA) attachment pins and 
trunnions. In addition, it is possible that aeroplanes having 
incorporated the Initial issue or Revision A, of Bombardier Service 
Bulletin (SB) 601R-27-160 used incorrect attachment hardware to re-
install the HSTA attachment pins or trunnions.
    This [Canadian] AD mandates the inspection and rectification, as 
required, and the re-identification, as required, of the HSTA pins 
and trunnions and incorporation of a revised Airworthiness 
Limitation task.

    The required actions include measuring the diameter of the bolts 
that attach the trunnions and pins, measuring the diameter of the 
attach holes in the aircraft structure, and, as applicable, measuring 
the diameter of the attach holes in the trunnions and pins, doing 
detailed visual inspections for gouges, scratches, and corrosion of the 
trunnions and pins, doing detailed visual inspections for damage of the 
spacers, doing corrective actions, and re-identifying trunnions and 
pins. Corrective actions include replacing bolts, trunnions, pins, and 
spacers, increasing the diameter of the attach holes, and repairing 
trunnions and pins.
    This proposed AD also removes certain airplanes from the 
applicability to correspond with the MCAI, which removed them from its 
applicability.
    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-2016-
7427.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued Service Bulletin 601R-27-160, Revision D, 
dated October 22, 2015. The service information describes procedures 
for measuring the diameter of certain bolts and attach holes, and, as 
applicable, measuring the diameter of the attach holes in the trunnions 
and pins, doing detailed visual inspections of the trunnions, pins, and 
spacers, doing corrective actions, and re-identifying trunnions and 
pins.
    Bombardier has also issued Bombardier Temporary Revision 2B-2245, 
dated October 17, 2014, to Appendix B--Airworthiness Limitations, of 
Part 2, Airworthiness Requirements, of the Bombardier CL-600-2B19 
Maintenance Requirements Manual to incorporate a revised Airworthiness 
Limitation task. The service information describes safe life limits for 
the HSTA trunnion support and attaching hardware.
    Bombardier has also issued Bombardier Temporary Revision 2B-2186, 
dated August 8, 2011, to Appendix B--Airworthiness Limitations, Part 2, 
Airworthiness Requirements, of the Bombardier CL-600-2B19 Maintenance 
Requirements Manual to incorporate a revised Airworthiness Limitation 
task. The service information describes an inspection of the upper and 
lower installation pins of the horizontal stabilizer pitch trim 
actuator.
    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 and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

Costs of Compliance

    We estimate that this proposed AD affects 489 airplanes of U.S. 
registry.
    We estimate that it would take about 8 work-hours per product to 
comply with the basic requirements of this proposed AD. The average 
labor rate is $85 per work-hour. Based on these figures, we estimate 
the cost of this proposed AD on U.S. operators to be $332,520, or $680 
per product.
    In addition, we estimate that any necessary follow-on actions would 
take about 20 work-hours and require parts costing $4,391, for a cost 
of $6,091 per product. We have no way of determining the number of 
products that may need these actions.

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.
    We are 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

    We 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. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. 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 removing Airworthiness Directive AD 
2013-02-08, Amendment 39-17329 (78 FR 7647, February 4, 2013), and 
adding the following new AD:

Bombardier, Inc.: Docket No. FAA-2016-7427; Directorate Identifier 
2016-NM-041-AD.

(a) Comments Due Date

    We must receive comments by August 29, 2016.

[[Page 45994]]

(b) Affected ADs

    This AD replaces AD 2013-02-08, Amendment 39-17329 (78 FR 7647, 
February 4, 2013) (``AD 2013-02-08'').

(c) Applicability

    This AD applies to Bombardier, Inc. Model CL-600-2B19 (Regional 
Jet Series 100 & 440) airplanes, certificated in any category, 
serial numbers 7003 through 8113 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 27: Flight 
controls.

(e) Reason

    This AD was prompted by a determination that not all affected 
attachment pins and trunnions were included in the inspections 
required by AD 2013-02-08. In addition, for certain airplanes on 
which the replacement in AD 2013-02-08 was done, incorrect 
attachment hardware may have been used. We are issuing this AD to 
prevent failure of the attachment pins and trunnions of the 
horizontal stabilizer trim actuator (HSTA). This condition could 
result in separation of the horizontal stabilizer, and consequent 
loss of control of the airplane.

(f) Compliance

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

(g) Inspection

    (1) For airplanes on which the detailed inspection specified in 
Bombardier Service Bulletin 601R-27-160, dated September 29, 2011; 
or Bombardier Service Bulletin 601R-27-160, Revision A, dated 
October 3, 2012, has not been done as of the effective date of this 
AD: At the earliest of the times specified in paragraphs (g)(1)(i), 
(g)(1)(ii), and (g)(1)(iii) of this AD, measure the diameter of the 
bolts that attach the trunnions and pins, measure the diameter of 
the attach holes in the aircraft structure, and, as applicable, 
measure the diameter of the attach holes in the trunnions and pins, 
do detailed visual inspections for gouges, scratches, and corrosion 
of the trunnions and pins, do detailed visual inspections for damage 
of the spacers, do corrective actions, and re-identify trunnions and 
pins, in accordance with Part A of the Accomplishment Instructions 
of Bombardier Service Bulletin 601R-27-160, Revision D, dated 
October 22, 2015; except as required by paragraph (h) of this AD. Do 
all applicable corrective actions before further flight.
    (i) Within 5,000 flight hours after March 11, 2013 (the 
effective date of AD 2013-02-08).
    (ii) Within 60 months after March 11, 2013 (the effective date 
of AD 2013-02-08).
    (iii) Before the accumulation of 40,000 total flight cycles, or 
within 60 days after March 11, 2013 (the effective date of AD 2013-
02-08), whichever occurs later.
    (2) For airplanes on which the detailed inspection specified in 
Bombardier Service Bulletin 601R-27-160, dated September 29, 2011; 
or Bombardier Service Bulletin 601R-27-160, Revision A, dated 
October 3, 2012, has been done as of the effective date of this AD: 
Within 9,600 flight hours or 60 months after the effective date of 
this AD, whichever occurs first; measure the diameter of the bolts 
that attach the trunnions and pins, measure the diameter of the 
attach holes in the aircraft structure, and, as applicable, measure 
the diameter of the attach holes in the trunnions and pins, do 
detailed visual inspections for gouges, scratches, and corrosion of 
the trunnions and pins, do detailed visual inspections for damage of 
the spacers, do corrective actions, and re-identify trunnions and 
pins, in accordance with Part B of the Accomplishment Instructions 
of Bombardier Service Bulletin 601R-27-160, Revision D, dated 
October 22, 2015, except as required by paragraph (h) of this AD. Do 
all applicable corrective actions before further flight.

(h) Exception to Service Information

    Where Bombardier Service Bulletin 601R-27-160, Revision D, dated 
October 22, 2015, specifies to contact Bombardier for disposition, 
before further flight, repair using a method approved by the 
Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA; 
or Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s 
TCCA Design Approval Organization (DAO).

(i) Credit for Previous Actions

    This paragraph provides credit for the actions specified in 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using the service information identified 
in paragraphs (i)(1) and (i)(2) of this AD, which are not 
incorporated by reference in this AD.
    (1) Bombardier Service Bulletin 601R-27-160, Revision B, dated 
February 20, 2015.
    (2) Bombardier Service Bulletin 601R-27-160, Revision C, dated 
May 3, 2015.

(j) Revision of Maintenance or Inspection Program

    (1) Within 30 days after March 11, 2013 (the effective date of 
AD 2013-02-08), revise the maintenance or inspection program, as 
applicable, to incorporate the information specified in Bombardier 
Temporary Revision 2B-2186, dated August 8, 2011, to Appendix B--
Airworthiness Limitations, Part 2, Airworthiness Requirements, of 
the Bombardier CL-600-2B19 Maintenance Requirements Manual. The 
compliance time for doing the initial inspection of the upper and 
lower installation pins of the horizontal stabilizer pitch trim 
actuator is before the accumulation of 40,000 landings or within 60 
days after March 11, 2013, whichever occurs later.
    (2) Within 30 days after the effective date of this AD, revise 
the maintenance or inspection program, as applicable, to incorporate 
the information specified in Bombardier Temporary Revision 2B-2245, 
dated October 17, 2014; to Appendix B--Airworthiness Limitations, 
Part 2, Airworthiness Requirements, of the Bombardier CL-600-2B19 
Maintenance Requirements Manual. The compliance time for doing the 
initial replacement for the HSTA trunnion support and attaching 
hardware is before the accumulation of 80,000 landings or within 60 
days after the effective date of this AD, whichever occurs later.

(k) No Alternative Actions or Intervals

    After accomplishing the revision required by paragraph (j) of 
this AD, no alternative actions (e.g., inspections) or intervals may 
be used unless the actions or intervals are approved as an 
alternative method of compliance (AMOC) in accordance with the 
procedures specified in paragraph (l)(1) of this AD.

(l) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York ACO, ANE-170, 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 ACO, send it to ATTN: Program 
Manager, Continuing Operational Safety, FAA, New York ACO, 1600 
Stewart Avenue, Suite 410, Westbury, New York 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. The AMOC approval letter 
must specifically reference this AD.
    (2) Contacting the Manufacturer: As of the effective date of 
this AD, 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, ANE-170, Engine and Propeller 
Directorate, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If 
approved by the DAO, the approval must include the DAO-authorized 
signature.

(m) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2016-08, dated March 30, 
2016, 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-2016-7427.
    (2) 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 [email protected]; Internet http://www.bombardier.com. You may view this service information at the 
FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, 
WA. For information on the availability of this material at the FAA, 
call 425-227-1221.

    Issued in Renton, Washington, on July 8, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-16733 Filed 7-14-16; 8:45 am]
 BILLING CODE 4910-13-P