
[Federal Register Volume 80, Number 170 (Wednesday, September 2, 2015)]
[Rules and Regulations]
[Pages 52955-52959]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-21472]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0583; Directorate Identifier 2013-NM-130-AD; 
Amendment 39-18258; AD 2015-17-25]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted 
by reports of chafing of the fuel lines due to contact with the 
surrounding structures in the fuel tank. This AD requires replacing and 
modifying fuel lines, revising the maintenance or inspection program, 
as applicable, to include critical design configuration control 
limitations (CDCCL) and airworthiness limitation (AWL) items, and, for 
certain airplanes, removing certain clamps and mounting hardware. We 
are issuing this AD to prevent chafing of the fuel lines in the fuel 
tank, which could result in potential ignition sources in the fuel tank 
in the event of a lightning strike and consequent fire or explosion.

DATES: This AD becomes effective October 7, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of October 7, 
2015.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0583 or in person at the 
Docket Management Facility, U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC.
    For service information identified in this AD, contact Bombardier, 
Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto, 
Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-4539; 
email thd.qseries@aero.bombardier.com; 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

[[Page 52956]]

FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-
0583.

FOR FURTHER INFORMATION CONTACT: Kent Fredrickson, Aerospace Engineer, 
Propulsion and Services Branch, ANE-173, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7364; fax 516-794-5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain Bombardier, Inc. 
Model DHC-8-400 series airplanes. The NPRM published in the Federal 
Register on August 26, 2014 (79 FR 50860).
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2013-09R1, dated May 28, 2013 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for certain Bombardier, Inc. Model DHC-8-400 series 
airplanes. The MCAI states:

    Reports from operators have revealed a number of instances of 
chafing of the fuel lines due to contact with the surrounding 
structures in the fuel tank. An internal audit conducted by 
Bombardier revealed a number of locations in the fuel tank where low 
clearances were noted between fuel lines and the surrounding 
structure. Low clearances between fuel lines and the surrounding 
structures may result in ignition sources in the fuel tank in the 
event of a lightning strike, creating an unacceptable level of 
safety.
    Bombardier had issued Service Bulletin (SB) 84-28-09 to 
introduce new fuel line assemblies that include new fuel lines and 
Teflon protective sleeves, and SBs 84-28-10 and 84-28-13 to remove 
unnecessary hardware in the wing fuel tanks, in order to eliminate 
potential fouling conditions on the affected fuel lines.
    Upon an operator's incorporation of SB 84-28-09, an additional 
fouling condition was identified on the post-modification fuel 
lines. In order to address this concern on the aeroplane, Bombardier 
has issued SBs 84-28-14 and 84-28-15, along with ModSum IS4Q2800012 
to rectify this problem.
    This [Canadian] AD mandates the replacement of fuel lines and 
the installation of fuel line Teflon protective sleeves. In 
addition, the fuel line Teflon protective sleeves have been added to 
the Critical Design Configuration Control Limitations (CDCCL) along 
with the introduction of associated Fuel System Limitations tasks, 
to ensure integrity of the new assembly.
    Since the original issue of this [Canadian] AD, it was found 
that there were editorial errors in Parts IB and II A of this 
[Canadian] AD. In addition, the Temporary Revisions (TR) 
Airworthiness Limitation Items (ALI)-111/-112 ``referenced'' in 
Parts III and IV of this AD had been superseded by later revisions. 
This [Canadian] AD is revised to correct the editorial errors and 
accept the later TR approved by Transport Canada.

    You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2014-0583-0002.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM (79 
FR 50860, August 26, 2014) and the FAA's response to each comment.

Request To Refer to Revised Service Information

    All Nippon Airways (ANA) and Horizon Air requested that we revise 
paragraph (g) of the proposed AD (79 FR 50860, August 26, 2014) to 
refer to the following service information:

 Bombardier Service Bulletin 84-28-14, Revision A, dated June 
9, 2014
 Bombardier Service Bulletin 84-28-09, Revision D, January 29, 
2013
 Bombardier Service Bulletin 84-28-15, dated August 17, 2012

    Horizon also requested that we revise paragraph (n) of the proposed 
AD (79 FR 50860, August 26, 2014) to provide credit for the prior 
accomplishment of the actions specified in Bombardier Service Bulletin 
84-28-14, dated August 17, 2012.
    We agree with the requests and have revised paragraphs (g)(1), 
(g)(2)(i), (g)(2)(ii), and (m) of this AD accordingly. We have also 
redesignated paragraph (n) of the proposed AD (79 FR 50860, August 26, 
2014) as paragraph (n)(1) of this AD, and added new paragraph (n)(2) to 
this AD to indicate the new credit service information.

Request To Clarify Certain Affected Airplanes

    ANA requested that we correct the identity of the affected 
airplanes in paragraph (g)(2) of the proposed AD (79 FR 50860, August 
26, 2014). Although paragraph (g)(2) of the NPRM specified airplanes on 
which ModSum 4-113643 ``was incorporated'' in production, ANA noted 
that this requirement should apply to airplanes on which ModSum 4-
113643 ``was not incorporated'' in production. ANA noted that ModSum 4-
113643 is equivalent to the Bombardier Service Bulletin 84-28-09.
    We agree with the request. The intent of the NPRM (79 FR 50860, 
August 26, 2014) was to include only airplanes on which neither the 
ModSum nor the corresponding service bulletin was done. We have revised 
paragraph (g)(2) of this AD accordingly.

Request To Exclude Specific Access and Close Requirements

    Horizon Air requested that we revise paragraphs (g) and (i) of the 
proposed AD (79 FR 50860, August 26, 2014) to exclude the Job Set-up 
and the Close Out sections in certain service information, because 
these actions do not directly correct the unsafe condition. Horizon Air 
stated that requiring the actions in these sections restricts an 
operator's ability to do other maintenance actions concurrently with 
the actions required by this AD.
    We agree to revise paragraphs (g) and (i) of this AD to specify 
only the actions in paragraph B., ``Procedures,'' which correct the 
unsafe condition.

Request To Allow Use of Later Revisions of Service Information

    ANA requested that we allow use of ``later revisions'' of the 
service information, as done in the MCAI.
    We disagree with the request. We cannot use the phrase ``or later 
revisions'' in an AD when referring to service documents because doing 
so violates Office of the Federal Register (OFR) regulations for 
approval of materials ``incorporated by reference'' in rules. See 1 CFR 
51.1(f). In general terms, we are required by these OFR regulations to 
either publish the service document contents as part of the actual AD 
language; or submit the service document to the OFR for approval as 
``referenced'' material, in which case we may refer to such material in 
the text of an AD. The AD may refer to service documents only if the 
OFR has approved them for incorporation by reference. See 1 CFR part 
51.
    To allow operators to use later revisions of the referenced 
document (issued after publication of the AD), either we must revise 
the AD to refer to specific later revisions, or operators must request 
approval to use later revisions as an alternative method of compliance 
with this AD under the provisions of paragraph (o)(1) of this AD. We 
have not changed this AD regarding this issue.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:

[[Page 52957]]

     Are consistent with the intent that was proposed in the 
NPRM (79 FR 50860, August 26, 2014) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (79 FR 50860, August 26, 2014).
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information:
     Service Bulletin 84-28-09, Revision D, dated January 29, 
2013, which describes procedures for replacing fuel lines, adding 
Teflon tubing to certain fuel lines in the fuel tank, and contacting 
the manufacturer for certain corrective actions.
     Service Bulletin 84-28-10, Revision B, dated March 19, 
2013, which describes procedures for inspecting for the presence of 
certain clamps and hardware and, if those are present, removing those 
certain clamps and mounting hardware.
     Service Bulletin 84-28-13, dated August 17, 2012, which 
describes procedures for removing certain clamps and mounting hardware.
     Service Bulletin 84-28-14, Revision A, dated June 9, 2014, 
which describes procedures for replacing a tube assembly.
     Service Bulletin 84-28-15, dated August 17, 2012, which 
describes procedures for replacing fuel lines, adding Teflon tubing to 
certain fuel lines in the fuel tank, and contacting the manufacturer 
for certain corrective actions.
     Temporary Revision ALI-111, dated January 11, 2011, to 
Section 4-1, ``Fuel System Limitations,'' of Part 2, ``Airworthiness 
Limitation Items,'' of the Airworthiness Limitation Items section of 
Bombardier Q400 Dash 8 Maintenance Requirements Manual PSM 1-84-7, 
which describes updates to the fuel system limitations for inspections 
of the Teflon sleeve on the fuel tank vent lines.
     Temporary Revision ALI-112, dated January 11, 2011, to 
Section 5-1, ``Critical Design Configuration Control Limitations,'' of 
Part 2, ``Airworthiness Limitation Items,'' of the Airworthiness 
Limitation Items section of Bombardier Q400 Dash 8 Maintenance 
Requirements Manual PSM 1-84-7, which describes updates to the critical 
design configuration control limitations on Teflon protective sleeves 
on fuel vent lines inside the fuel tanks.
    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 of this 
NPRM.

Costs of Compliance

    We estimate that this AD affects 72 airplanes of U.S. registry. We 
also estimate that it will take about 80 work-hours per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour. Required parts will cost about $2,845 per 
product. Based on these figures, we estimate the cost of this AD on 
U.S. operators to be $694,440, or $9,645 per product.

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 AD will not have federalism implications 
under Executive Order 13132. This AD will 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 that this AD:
    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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2014-0583; 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 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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 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):

2015-17-25 Bombardier, Inc.: Amendment 39-18258. Docket No. FAA-
2014-0583; Directorate Identifier 2013-NM-130-AD.

(a) Effective Date

    This AD becomes effective October 7, 2015

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes, certificated in any category, serial numbers 4001, 
and 4003 through 4417 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 28, Fuel.

(e) Reason

    This AD was prompted by reports of chafing of the fuel lines due 
to contact with the surrounding structures in the fuel tank. We are 
issuing this AD to prevent chafing of the fuel lines in the fuel 
tank, which could result in potential ignition sources in the fuel 
tank in the event of a lightning strike and consequent fire or 
explosion.

(f) Compliance

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

[[Page 52958]]

(g) Installation of New Fuel Tube Assemblies

    For airplanes having serial numbers 4001, 4003, 4004, 4006, and 
4008 through 4417 inclusive: Within 6,000 flight hours or 3 years 
after the effective date of this AD, whichever occurs first, install 
new, improved fuel tube assemblies, in accordance with paragraph B., 
``Procedure,'' of the Accomplishment Instructions of the applicable 
service information identified in paragraphs (g)(1) and (g)(2) of 
this AD.
    (1) For airplanes on which Bombardier Service Bulletin 84-28-09 
was incorporated prior to the effective date of this AD, or on which 
Bombardier Modification Summary (ModSum) 4-113643 was incorporated 
in production: Bombardier Service Bulletin 84-28-14, Revision A, 
dated June 9, 2014.
    (2) For airplanes on which Bombardier Service Bulletin 84-28-09 
was not incorporated prior to the effective date of this AD, or on 
which Bombardier ModSum 4-113643 was not incorporated in production, 
use the service information identified in paragraph (g)(2)(i) or 
(g)(2)(ii) of this AD.
    (i) Bombardier Service Bulletin 84-28-09, Revision D, dated 
January 29, 2013; and Bombardier Service Bulletin 84-28-14, Revision 
A, dated June 9, 2014.
    (ii) Bombardier Service Bulletin 84-28-15, dated August 17, 
2012.

(h) Prior Incorporation of Bombardier ModSum IS4Q2800012

    For airplanes on which Bombardier Service Bulletin 84-28-09, and 
Bombardier ModSum IS4Q2800012 were incorporated before the effective 
date of this AD; and for airplanes on which Bombardier ModSum 4-
113643 was incorporated in production, and Bombardier ModSum 
IS4Q2800012 was incorporated prior to the effective date of this AD: 
The requirements of paragraph (g) are not required.

(i) Removal of Clamps and Mounting Hardware

    For airplanes having serial numbers 4003 through 4151 inclusive, 
and 4332 through 4417 inclusive: Within 6,000 flight hours or 3 
years after the effective date of this AD, whichever occurs first, 
do the actions required by paragraphs (i)(1) and (i)(2) of this AD, 
as applicable.
    (1) For airplanes having serial numbers 4003 through 4151 
inclusive, on which Bombardier ModSum IS4Q2800010 was incorporated: 
Inspect for the presence of certain clamps and hardware, and, if 
present, remove certain clamps and mounting hardware, in accordance 
with paragraph B., ``Procedure,'' of the Accomplishment Instructions 
of Bombardier Service Bulletin 84-28-10, Revision B, dated March 19, 
2013.
    (2) For airplanes having serial numbers 4332 through 4417 
inclusive: Remove certain clamps and mounting hardware, in 
accordance with paragraph B., ``Procedure,'' of the Accomplishment 
Instructions of Bombardier Service Bulletin 84-28-13, dated August 
17, 2012.

(j) Incorporation of Fuel System Limitations (FSL) Tasks

    Within 60 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate the 
information in FSL Task Numbers 284000-406 and 284000-418 as 
specified in Bombardier Temporary Revision ALI-111, dated January 
11, 2011, to Section 4-1, ``Fuel System Limitations,'' of Part 2, 
``Airworthiness Limitation Items,'' of the Airworthiness Limitation 
Items section of the Airworthiness Limitation Items section of 
Bombardier Q400 Dash 8 Maintenance Requirements Manual PSM 1-84-7. 
The initial compliance time for Task 284000-418 is within 108 months 
or 18,000 flight hours after accomplishing the requirements of 
paragraph (g) of this AD, whichever occurs first, for airplanes 
identified in paragraphs (g)(1) and (g)(2) of this AD; or, for those 
airplanes identified in paragraph (h) of this AD, within 108 months 
or 18,000 flight hours after the incorporation of Bombardier ModSum 
IS4Q2800012. The maintenance program revision required by this 
paragraph may be done by inserting a copy of Bombardier Temporary 
Revision ALI-111, dated January 11, 2011, into the Airworthiness 
Limitation Items section of Bombardier Q400 Dash 8 Maintenance 
Requirements Manual PSM 1-84-7. When Bombardier Temporary Revision 
ALI-111, dated January 11, 2011, has been included in the general 
revisions of the manual, the general revisions may be inserted into 
the manual, and this temporary revision may be removed, provided the 
relevant information in the general revision is identical to that in 
Bombardier Temporary Revision ALI-111.

(k) Incorporation of Critical Design Configuration Control Limitations 
(CDCCL) Items

    Within 60 days after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate the 
CDCCL items specified in Bombardier Temporary Revision ALI-112, 
dated January 11, 2011, to Section 5-1, ``Critical Design 
Configuration Control Limitations,'' of Part 2, ``Airworthiness 
Limitation Items,'' of the Airworthiness Limitation Items section of 
Bombardier Q400 Dash 8 Maintenance Requirements Manual PSM 1-84-7. 
The maintenance program revision required by this paragraph may be 
done by inserting a copy of Bombardier Temporary Revision ALI-112, 
dated January 11, 2011, into the Airworthiness Limitation Items 
section of Bombardier Q400 Dash 8 Maintenance Requirements Manual 
PSM 1-84-7. When Bombardier Temporary Revision ALI-112, dated 
January 11, 2011, has been included in the general revisions of the 
manual, the general revisions may be inserted into the manual, and 
this temporary revision may be removed, provided the relevant 
information in the general revision is identical to that in 
Bombardier Temporary Revision ALI-112.

(l) No Alternative Actions, Intervals, and CDCCLs

    After the maintenance or inspection program, as applicable, has 
been revised as required by paragraphs (j) and (k) of this AD, no 
alternative actions (e.g., inspections), intervals, or CDCCLs may be 
used unless the actions, intervals, or CDCCL are approved as an 
alternative method of compliance (AMOC) in accordance with the 
procedures specified in paragraph (o)(1) of this AD.

(m) Exception to Service Information Specifications

    Where Bombardier Service Bulletin 84-28-09, Revision D, dated 
January 29, 2013; and Bombardier Service Bulletin 84-28-15, dated 
August 17, 2012; specify contacting the manufacturer for corrective 
action during accomplishment of the actions in those service 
bulletins: Before further flight, repair the discrepancy using a 
method approved by the Manager, New York Aircraft Certification 
Office (ACO), FAA; or Transport Canada Civil Aviation (TCCA); or 
Bombardier, Inc.'s TCCA Design Approval Organization (DAO).

(n) Credit for Previous Actions

    (1) This paragraph provides credit for actions required by 
paragraph (i)(1) of this AD, if those actions were performed before 
the effective date of this AD using Bombardier Service Bulletin 84-
28-10, dated December 6, 2011; or Bombardier Service Bulletin 84-28-
10, Revision A, dated May 15, 2012. This service information is not 
incorporated by reference in this AD.
    (2) This paragraph provides credit for actions required by 
paragraph (g) of this AD, if the corresponding actions were 
performed before the effective date of this AD using Bombardier 
Service Bulletin 84-28-14, dated August 15, 2012, which is not 
incorporated by reference in this AD.

(o) 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, 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. The AMOC approval letter must 
specifically reference this AD.
    (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, 
ANE-170, FAA; or TCCA; or Bombardier, Inc.'s TCCA DAO. If approved 
by the DAO, the approval must include the DAO-authorized signature.

(p) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2013-09R1, dated May 28, 
2013, for related information. This MCAI may be found in the AD 
docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2014-0583-0002.

[[Page 52959]]

    (2) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (q)(3) and (q)(4) of this AD.

(q) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (i) Bombardier Service Bulletin 84-28-09, Revision D, dated 
January 29, 2013.
    (ii) Bombardier Service Bulletin 84-28-10, Revision B, dated 
March 19, 2013.
    (iii) Bombardier Service Bulletin 84-28-13, dated August 17, 
2012.
    (iv) Bombardier Service Bulletin 84-28-14, Revision A, dated 
June 9, 2014.
    (v) Bombardier Service Bulletin 84-28-15, dated August 17, 2012.
    (vi) Bombardier Temporary Revision ALI-111, dated January 11, 
2011, to Section 4-1, ``Fuel System Limitations,'' of Part 2, 
``Airworthiness Limitation Items,'' of the Airworthiness Limitation 
Items section of Bombardier Q400 Dash 8 Maintenance Requirements 
Manual PSM 1-84-7.
    (vii) Bombardier Temporary Revision ALI-112, dated January 11, 
2011, to Section 5-1, ``Critical Design Configuration Control 
Limitations,'' of Part 2, ``Airworthiness Limitation Items,'' of the 
Airworthiness Limitation Items section of Bombardier Q400 Dash 8 
Maintenance Requirements Manual PSM 1-84-7.
    (3) For service information identified in this AD, contact 
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt 
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; 
fax 416-375-4539; email thd.qseries@aero.bombardier.com; Internet 
http://www.bombardier.com.
    (4) 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.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on August 21, 2015.
Kevin Hull,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-21472 Filed 9-1-15; 8:45 am]
 BILLING CODE 4910-13-P


