Document ID: FAA-2016-4229-0005
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: Viking Air Ltd. Airplanes
Posted Date: 2016-09-19T04:00Z

[Federal Register Volume 81, Number 181 (Monday, September 19, 2016)]
[Rules and Regulations]
[Pages 64053-64057]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-22183]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-4229; Directorate Identifier 2015-CE-038-AD; 
Amendment 39-18657; AD 2016-19-08]
RIN 2120-AA64

Airworthiness Directives; Viking Air Limited 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 Viking 
Air Limited Models DHC-2 Mk. I, DHC-2 Mk. II, and DHC-2 Mk. III 
airplanes. This AD results from mandatory continuing airworthiness 
information (MCAI) issued by an aviation authority of another country 
to identify and

[[Page 64054]]

correct an unsafe condition on an aviation product. The MCAI describes 
the unsafe condition as corrosion of the elevator control rod and of 
the elevator actuating lever on the control column. We are issuing this 
AD to detect and correct corrosion and/or cracking of the elevator 
control rod assemblies and the elevator actuating lever, which if not 
detected and corrected, could cause these components to fail. This 
failure could result in loss of control.

DATES: This AD is effective October 24, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of October 24, 
2016.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
4229; or in person at Document 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 20590.
    For service information identified in this AD, contact Viking Air 
Limited Technical Support, 1959 De Havilland Way, Sidney, British 
Columbia, Canada, V8L 5V5; Fax: 250-656-0673; telephone: (North 
America) (800) 663-8444; email: technical.support@vikingair.com; 
Internet: http://www.vikingair.com/support/service-bulletins. You may 
view this referenced service information at the FAA, Small Airplane 
Directorate, 901 Locust, Kansas City, Missouri 64106. For information 
on the availability of this material at the FAA, call (816) 329-4148. 
It is also available on the Internet at http://www.regulations.gov by 
searching for Docket No. FAA-2016-4229.

FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer, FAA, 
New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, 
Suite 410, Westbury, New York 11590; telephone: (516) 228-7329; fax: 
(516) 794-5531; email: aziz.ahmed@faa.gov.

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 all Viking Air Limited 
Models DHC-2 Mk. I, DHC-2 Mk. II, and DHC-2 Mk. III airplanes. The NPRM 
was published in the Federal Register on March 3, 2016 (81 FR 11132). 
The NPRM proposed to correct an unsafe condition for the specified 
products and was based on mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country. The MCAI states:

    There have been a number of reports of corrosion and/or cracking 
at the elevator actuating lever on the control column, in the 
elevator control rod assemblies, and at the rod end plug.
    Undetected corrosion and/or cracking of the elevator control rod 
assemblies or elevator actuating lever may lead to the failure of 
the components with consequent loss of aeroplane control.

The MCAI requires visually inspecting the elevator control rod 
assemblies, the elevator actuating lever on the control column, and the 
control column torque tube for corrosion, cracking, and/or other 
damages, and repairing or replacing damaged parts. The MCAI also 
requires incorporating revisions into the maintenance program and adds 
a life limit to certain elevator control rod assemblies. The MCAI can 
be found in the AD docket on the Internet at https://www.regulations.gov/document?D=FAA-2016-4229-0002.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the NPRM (81 
FR 11132, March 3, 2016) and the FAA's response to each comment.

Request To Change Inspection Procedure for the Elevator Control Rod

    Roger Braun requested allowance for inspecting the elevator control 
rod without removing it from the airplane.
    The commenter stated that even though the inspection procedure in 
Viking Air Limited DHC-2 Beaver Service Bulletin Number: V2/0005, 
Revision `C', dated July 17, 2015 (SB No. V2/0005, Rev. C), requires 
removing the elevator control rod, that doing so is excessively 
invasive and adds an increased risk of maintenance errors and/or damage 
to the part over simply inspecting it in place.
    We do not agree with the commenter. The elevator control rod ends 
are not required to be removed from its assembly. Removal of the 
elevator control rod assembly is necessary to do the required 
inspections. Viking Air Limited and Transport Canada determined that 
removing the elevator control rod assembly is necessary to adequately 
do the inspection, and the process of removing the elevator control rod 
assembly does not pose additional risk to safety.
    We have not changed the AD based on this comment.

Request To Rename/Revise the Airworthiness Limitations Section

    Roger Braun requested to omit the requirement to revise the 
Airworthiness Limitation section and instead include the repetitive 
inspection in the final rule AD action. The commenter stated that it is 
very hard to find the compliance times for the repetitive inspections, 
which are embedded in the temporary revisions to be inserted into the 
Airworthiness Limitation section of the FAA-approved maintenance 
program. The commenter asked that instead of inserting continued 
airworthiness instructions into the manual, why not include the 
language ``repeat inspection every 400 flight hours'' in the AD 
actions?
    We partially agree. We agree that the repetitive inspection 
requirements that are embedded in the temporary revisions are not clear 
or easy to understand. However, we disagree with writing the repetitive 
inspections into the AD because Viking Air Limited plans to have all 
the required inspections in their maintenance manual rather than 
dispersed over numerous other documents. We have determined that 
revising the Airworthiness Limitations section of the FAA-approved 
maintenance program to mandate the repetitive inspections is 
acceptable. To clarify the intent of the of the Airworthiness 
Limitations section, we have changed the heading of that section to 
Repetitive Inspection in order to make the repetitive inspections 
clear.
    We have changed the AD based on this comment.

Request To Allow Minor Surface Corrosion

    Roger Braun requested that the final rule AD action be changed to 
include an allowance for minor surface corrosion.
    The commenter stated that the proposed AD and the related service 
information are vague in delineating what corrosion is considered 
unacceptable by stating if ``any corrosion'' is found, which would be 
an unrealistic standard. The commenter requested relief for minor 
surface corrosion.
    We do not agree. Viking Air Limited and Transport Canada determined 
that all corrosion is unacceptable. Small surface corrosion must also 
be repaired following the SB No. V2/0005, Rev. C, dated July 17, 2015.
    We have not changed the AD based on this comment.

[[Page 64055]]

Request for Clarification of Life Limit for Part Number (P/N) C2FC619A-
11

    Roger Braun requested clarification in the final rule AD action to 
clearly state that P/N C2FC619A-11 elevator control rod is not a life-
limited part.
    The commenter stated that it is not entirely clear in the proposed 
AD that elevator control rod, P/N C2FC619A-11, is not a life-limited 
part. The commenter requested further clarification in the final rule 
AD action specifying that there is no life limit on P/N C2FC619A-11.
    We agree with the commenter and have added a statement in the AD to 
further clarify that the P/N C2CF619A-11 elevator control rod has no 
life limit.
    We have changed the AD based on this comment.

Request To Extend Repetitive Inspection Compliance Times

    Roger Braun requested relief for the repetitive inspection of the 
elevator control rods with a known date of manufacture, for example, 5 
or 10 years.
    We infer that the commenter wants the repetitive inspections 
changed from every 400 hours time-in-service (which is what is 
specified in the Temporary Revisions to the Airworthiness Limitations 
section) to a repetitive 5-year inspection.
    We do not agree. Viking Air Limited and Transport Canada determined 
that damage can occur at any time. Therefore, no threshold is provided 
that will allow a certain period of time before the start of the 
repetitive inspection requirement.
    We have not changed the AD based on this comment.

Request To Change Repetitive Inspection Compliance Time

    Mark Henshaw requested the repetitive inspections be yearly/12-
month inspections. The commenter stated that he operated his airplane 
400-500 hours per summer season, as most operators do. The commenter 
stated that the 400-hour recurring inspection will require the 
operators to remove the airplane from service, remove the pilot floor 
panel, pilot side panels, oil cooler cowl, side after cowl, unbolt the 
control column bearings and the inboard control column mount then 
remove it, pull the elevator control rod out of the airplane, and then 
do the elevator control rod inspection. We infer that the commenter is 
making the point that the inspection is very labor intensive. The 
commenter stated that this inspection would fit nicely into a yearly/
12-month inspection criteria instead of what probably will fall right 
in the middle of their busy season when a 100-hour inspection may or 
may not have been scheduled. This inspection will add at least 4-6 
hours (on a good night) to a routine 100-hour inspection.
    The commenter requested an alternative of yearly/every 12 months, 
that way all the elevator control rods get looked at every year and 
nobody has to stop their airplane right in the middle of their busy 
season for this inspection.
    The commenter stated that there has never been a requirement to 
remove the elevator control rod, and does agree that doing the 
inspection is great idea, but not every 400 hours.
    We do not agree that yearly/12 month inspections are an acceptable 
level of safety to address the unsafe condition. The 400-hour 
inspection should assure that any damage will be detected before it 
rises to an unsafe level. Additionally, Viking Air Limited informed us 
that there are existing inspections specified in the applicable 
maintenance manuals around the same affected area as this AD that 
requires lifting of floor boards.
    We have not changed the AD based on this comment.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
the AD with the changes described previously and minor editorial 
changes. We have determined that these minor changes:
     [Agr]re consistent with the intent that was proposed in 
the NPRM (81 FR 11132, March 3, 2016) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (81 FR 11132, March 3, 2016).
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of the AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Viking Air Limited DHC-2 Beaver Service Bulletin 
Number: V2/0005, Revision `C', dated July 17, 2015; Temporary Revision 
No.: 2-38, dated March 4, 2015, of VIKING PSM NO.: 1-2-2, AIRCRAFT: 
DHC-2 BEAVER, SERIES: ALL, PUBLICATION: MAINTENANCE MANUAL; and 
Temporary Revision No.: 2T-14, dated March 4, 2015, of VIKING PSM NO.: 
1-2T-2, AIRCRAFT: DHC-2 TURBO BEAVER, SERIES: ALL, PUBLICATION: 
MAINTENANCE MANUAL. The service information describes procedures for 
doing detailed visual inspections of the elevator control rod 
assemblies, the elevator actuating lever on the control column, and the 
control column torque tube for corrosion, cracking, and/or other 
damages. The service bulletin also describes procedures for repairing 
or replacing damaged parts. 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 the AD.

Costs of Compliance

    We estimate that this AD will affect 135 products of U.S. registry. 
We also estimate that it will take about 11.5 work-hours per product to 
comply with the basic inspection requirements of this AD. The average 
labor rate is $85 per work-hour.
    Based on these figures, we estimate the cost of the basic 
inspection requirements of this AD on U.S. operators to be $131,962.50, 
or $977.50 per product.
    In addition, we estimate that any necessary follow-on actions will 
take about 8 work-hours and require parts costing $1,859, for a cost of 
$2,539 per product. Contact Viking Air Limited at the address 
identified in the ADDRESSES section of this AD for current pricing and 
lead time. 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 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

[[Page 64056]]

responsibilities among the various levels of government.
    For the reasons discussed above, I certify 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 by searching for and locating Docket No. FAA-2016-
4229; 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 the NPRM, the regulatory evaluation, any comments received, 
and other information. The street address for the Docket Office 
(telephone (800) 647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

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 AD:

2016-19-08 Viking Air Limited: Amendment 39-18657; Docket No. FAA-
2016-4229; Directorate Identifier 2015-CE-038-AD.

(a) Effective Date

    This airworthiness directive (AD) becomes effective October 24, 
2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Viking Air Limited Models DHC-2 Mk. I, DHC-2 
Mk. II, and DHC-2 Mk. III airplanes, all serial numbers, 
certificated in any category.

(d) Subject

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

(e) Reason

    This AD was prompted by mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country to identify and correct an unsafe condition on an aviation 
product. The MCAI describes the unsafe condition as corrosion of the 
elevator control rod and of the elevator actuating lever on the 
control column. We are issuing this AD to detect and correct 
corrosion and/or cracking of the elevator control rod assemblies and 
the elevator actuating lever, which if not detected and corrected, 
could cause these components to fail. This failure could result in 
loss of control.

(f) Actions and Compliance

    Comply with this AD within the compliance times specified in 
paragraphs (g) through (l) of this AD, including all subparagraphs, 
unless already done.

(g) Initial Inspections

    Within the next 120 days after October 24, 2016 (the effective 
date of this AD) or within the next 100 hours time-in-service (TIS) 
after October 24, 2016 (the effective date of this AD), whichever 
occurs first, do the following inspections in accordance with 
section I. PLANNING INFORMATION, paragraph D. of Viking DHC-2 Beaver 
Service Bulletin Number: V2/0005, Revision ``C'', dated July 17, 
2015:
    (1) For airplanes with an installed elevator control rod 
assembly, part number (P/N) C2CF619A, do a detailed visual 
inspection of P/N C2CF619A for corrosion, cracking, and/or other 
damages.
    (2) For airplanes with an installed elevator control rod 
assembly, P/N CT2CF1021-1, do a detailed visual inspection of P/N 
CT2CF1021-1 for corrosion, cracking, and/or other damages.
    (3) For all airplanes, do a detailed visual inspection of the 
elevator actuating lever on the control column and the control 
column torque tube for corrosion, cracking and/or other damages.

(h) Repetitive Inspections (Airworthiness Limitations)

    Within the next 30 days after October 24, 2016 (the effective 
date of this AD), insert the following into the Airworthiness 
Limitations section of the FAA-approved maintenance program (e.g., 
maintenance manual). This revision to the Limitations section 
incorporates repetitive inspections of the elevator control rod 
assemblies, the elevator actuating lever, and the control column 
torque tube for corrosion, cracks, and/or other damage. Insert item 
20A., of Part 3, in Appendix 2 of Temporary Revision No.: 2-38, 
dated March 4, 2015, into the VIKING PSM NO.: 1-2-2, AIRCRAFT: DHC-2 
BEAVER, SERIES: ALL, PUBLICATION: MAINTENANCE MANUAL; and Insert 
item 20A., in Part 4, of Temporary Revision No.: 2T-14, dated March 
4, 2015, into VIKING PSM NO.: 1-2T-2, AIRCRAFT: DHC-2 TURBO BEAVER, 
SERIES: ALL, PUBLICATION: MAINTENANCE MANUAL.

(i) Replacement/Repair for P/N C2CF619A

    (1) Before further flight after the inspection required in 
paragraph (g)(1) of this AD, if corrosion, cracking, or other 
damages are found, replace P/N C2CF619A with P/N C2CF619A-11 
following section I. PLANNING INFORMATION, paragraph D. of Viking 
DHC-2 Beaver Service Bulletin Number: V2/0005, Revision ``C'', dated 
July 17, 2015, or contact Viking Air Limited at the address 
specified in paragraph (o) of this AD for an FAA-approved repair and 
incorporate the repair.
    (2) Within the next 120 days after October 24, 2016 (the 
effective date of this AD) or within the next 100 hours TIS after 
October 24, 2016 (the effective date of this AD), whichever occurs 
first, you may replace P/N C2CF619A with P/N C2CF619A-11 instead of 
doing the inspection required in paragraph (g)(1) of this AD. Do the 
replacement following section I. PLANNING INFORMATION, paragraph D. 
of Viking DHC-2 Beaver Service Bulletin Number: V2/0005, Revision 
``C'', dated July 17, 2015.
    (3) After replacing P/N C2CF619A with P/N C2CF619A-11, you must 
still do the repetitive inspections of the elevator control rod 
assemblies following the Airworthiness Limitations section of the 
FAA-approved maintenance program (e.g., maintenance manual) 
specified in paragraph (k)(1) of this AD.

(j) Replacement/Repair for P/N CT2CF1021-1

    (1) Before further flight after the inspection required in 
paragraph (g)(2) of this AD, if corrosion, cracking, or other 
damages are found, replace the elevator control rod assembly with P/
N CT2CF1021-1 that has been inspected and is free of corrosion, 
cracking, or other damages following section I. PLANNING 
INFORMATION, paragraph D. of Viking DHC-2 Beaver Service Bulletin 
Number: V2/0005, Revision ``C'', dated July 17, 2015, or contact 
Viking Air Limited at the address specified in paragraph (o) of this 
AD for an FAA-approved repair and incorporate the repair.
    (2) After replacing or repairing P/N CT2CF1021-1, you must still 
do the repetitive inspections of the elevator control rod assemblies 
following the Airworthiness Limitations section of the FAA-approved 
maintenance program (e.g., maintenance manual) specified in 
paragraph (k)(1) of this AD.

(k) Repair of the Elevator Actuating Lever

    Before further flight after the inspection required in paragraph 
(g)(3) of this AD, if corrosion, cracking, or other damages are 
found, contact Viking Air Limited at the address specified in 
paragraph (o) of this AD for an FAA-approved repair and incorporate 
the repair.

(l) Restrictions

    As of October 24, 2016 (the effective date of this AD), do not 
install P/N C2CF619A or C2CF619A-9 as a replacement part.

[[Page 64057]]

(m) Life Limit for P/N C2CF619A

    As of October 24, 2016 (the effective date of this AD), elevator 
control rod assemblies, P/N C2CF619A, are life-limited to 15 years 
and must be replaced with P/N C2CF619A-11, which is not a life-
limited part, at the following compliance time:
    (1) If, as of October 24, 2016 (the effective date of this AD), 
the age of the installed P/N C2CF619A is known, it must be replaced 
before exceeding the life limit or within the next 12 months after 
October 24, 2016 (the effective date of this AD), whichever occurs 
later.
    (2) If, as of October 24, 2016 (the effective date of this AD), 
the age of the installed P/N C2CF619A is not known, it must be 
replaced within the next 12 months after October 24, 2016 (the 
effective date of this AD).

(n) Credit for Actions Accomplished in Accordance With Previous Service 
Information

    Credit will be given for the inspections required in paragraphs 
(g)(1) through (3) of this AD if they were done before October 24, 
2016 (the effective date of this AD) following Viking Air Limited 
DHC-2 Beaver Service Bulletin Number: V2/0005, Revision `NC', dated 
March 26, 2012; Viking Air Limited DHC-2 Beaver Service Bulletin 
Number: V2/0005, Revision `A', dated November 7, 2014; or Viking Air 
Limited DHC-2 Beaver Service Bulletin Number: V2/0005, Revision `B', 
dated March 4, 2015.

(o) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office (ACO), FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. Send information to ATTN: Aziz Ahmed, Aerospace 
Engineer, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, 
Westbury, New York 11590; telephone: (516) 228-7329; fax: (516) 794-
5531; email: aziz.ahmed@faa.gov. Before using any approved AMOC on 
any airplane to which the AMOC applies, notify your appropriate 
principal inspector (PI) in the FAA Flight Standards District Office 
(FSDO), or lacking a PI, your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, a federal agency may not conduct or sponsor, and a person 
is not required to respond to, nor shall a person be subject to a 
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 current valid OMB Control 
Number. The OMB Control Number for this information collection is 
2120-0056. Public reporting for this collection of information is 
estimated to be approximately 5 minutes per response, including the 
time for reviewing instructions, completing and reviewing the 
collection of information. All responses to this collection of 
information are mandatory. Comments concerning the accuracy of this 
burden and suggestions for reducing the burden should be directed to 
the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: 
Information Collection Clearance Officer, AES-200.

(p) Related Information

    Refer to MCAI Transport Canada AD No. CF-2015-21, dated July 30, 
2015; and Viking Air Limited DHC-2 Beaver Service Bulletin Number: 
V2/0005, Revision `NC', dated March 26, 2012; Viking Air Limited 
DHC-2 Beaver Service Bulletin Number: V2/0005, Revision `A', dated 
November 7, 2014; or Viking Air Limited DHC-2 Beaver Service 
Bulletin Number: V2/0005, Revision `B', dated March 4, 2015, for 
related information. You may examine the MCAI on the Internet at 
https://www.regulations.gov/document?D=FAA-2016-4229-0002.

(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 the AD specifies otherwise.
    (i) Viking DHC-2 Beaver Service Bulletin Number: V2/0005, 
Revision ``C'', dated July 17, 2015.
    (ii) Item 20A., of Part 3, in Appendix 2 of Temporary Revision 
No.: 2-38, dated March 4, 2015, into the VIKING PSM NO.: 1-2-2, 
AIRCRAFT: DHC-2 BEAVER, SERIES: ALL, PUBLICATION: MAINTENANCE 
MANUAL.
    (iii) Item 20A., in Part 4, of Temporary Revision No.: 2T-14, 
dated March 4, 2015, into VIKING PSM NO.: 1-2T-2, AIRCRAFT: DHC-2 
TURBO BEAVER, SERIES: ALL, PUBLICATION: MAINTENANCE MANUAL.
    (3) For Viking Air Limited service information identified in 
this AD, contact Viking Air Limited Technical Support, 1959 De 
Havilland Way, Sidney, British Columbia, Canada, V8L 5V5; Fax: 250-
656-0673; telephone: (North America) (800) 663-8444; email: 
technical.support@vikingair.com; Internet: http://www.vikingair.com/support/service-bulletins.
    (4) You may view this service information at the FAA, Small 
Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For 
information on the availability of this material at the FAA, call 
(816) 329-4148. In addition, you can access this service information 
on the Internet at http://www.regulations.gov by searching for and 
locating Docket No. FAA-2016-4229.
    (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 Kansas City, Missouri, on September 8, 2016.
Pat Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-22183 Filed 9-16-16; 8:45 am]
 BILLING CODE 4910-13-P