
[Federal Register Volume 80, Number 172 (Friday, September 4, 2015)]
[Proposed Rules]
[Pages 53480-53482]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-21934]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-3073; Directorate Identifier 2015-CE-017-AD]
RIN 2120-AA64


Airworthiness Directives; Viking Air Limited Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Proposed rule; correction.

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SUMMARY: The FAA is correcting a notice of proposed rulemaking (NPRM) 
that published in the Federal Register. That NPRM applies to Viking Air 
Limited Model DHC-3 airplanes. The repetitive inspection column in 
``Table 1 of Paragraph (f)(3) of This AD--Inspection Schedule'' 
contains data that is intended to apply to all conditions. However, the 
way the table is displayed makes it look as if it only applies to the 
first condition. This document corrects it to assure that it applies to 
all conditions. In all other respects, the original document remains 
the same.

DATES: The last date for submitting comments to the NPRM (80 FR 44892, 
July 28, 2015) remains September 11, 2015.

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 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Viking Air Limited Technical Support, 1959 De Havilland Way, Sidney, 
British Columbia, Canada, V8L 5V5; Fax: 250-656-0673; telephone: (North 
America) 1-800-663-8444; email: technical.support@vikingair.com; 
Internet: http://www.vikingair.com/support/service-bulletins. It is 
also available on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2015-3073.You may view this 
referenced service information at the FAA, Small

[[Page 53481]]

Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For 
information on the availability of this material at the FAA, call (816) 
329-4148.

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-2015-
3073; 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 
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: Aziz Ahmed, Aerospace Safety Engineer, 
FAA, New York Aircraft Certification Office (ACO), 1600 Steward Avenue, 
Suite 410, Westbury, New York 11590; telephone: (516) 228-7329; fax: 
(516) 794-5531; email: aziz.ahmed@faa.gov.

SUPPLEMENTARY INFORMATION: On July 28, 2015, a notice of proposed 
rulemaking (NPRM) (80 FR 44892) was published in the Federal Register 
to apply to Viking Air Limited Model DHC-3 airplanes. That NPRM 
proposed to require installing additional wing inspection access panels 
and inspecting the wings using borescope and visual methods with 
corrective action as necessary.
    As published, the repetitive inspection column in ``Table 1 of 
Paragraph (f)(3) of This AD--Inspection Schedule'' contains data that 
when displayed makes it look as if the repetitive inspections only 
apply to the first condition, whereas when printed shows that it 
applies to all conditions. To correct this, we are including the data 
in each condition.
    Although no other part of the preamble or regulatory information 
has been corrected, we are publishing the entire NPRM (80 FR 44892, 
July 28, 2015) in the Federal Register.
    The last date for submitting comments to the NPRM (80 FR 44892, 
July 28, 2015) remains September 11, 2015.

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:

Viking Air Limited: Docket No. FAA-2015-3073; Directorate Identifier 
2015-CE-017-AD.

(a) Comments Due Date

    We must receive comments by September 11, 2015. The date as 
originally published in the NPRM (80 FR 44892, July 28, 2015).

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Viking Air Limited DHC-3 airplanes, all 
serial numbers, certificated in any category.

(d) Subject

    Air Transport Association of America (ATA) Code 57: Wings.

(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 reports of 
corrugation cracking found at various wing stations and on the main 
spar lower cap. We are issuing this proposed AD to detect cracking 
and correct as necessary to address the unsafe condition on these 
products.

(f) Actions and Compliance

    Unless already done, do the following actions in paragraphs 
(f)(1) through (f)(5) of this AD:
    (1) Within 30 days after the effective date of this AD, 
determine the accumulated air time for each wing by contacting 
Technical Support at Viking Air Limited. You can find contact 
information for Viking Air Limited in paragraph (h) of this AD.
    (2) Within 30 days after the effective date of this AD, 
determine all installed supplemental type certificates (STC) or 
modifications affecting the wings. Based on the accumulated air time 
determined from paragraph (f)(1) of this AD and before the initial 
inspection required in paragraph (f)(3) of this AD, install access 
panels as follows:
    (i) If the airplane is free of STCs or any other modifications 
affecting the wings, install additional inspection access panels 
following the Accomplishment Instructions Part A of Viking DHC-3 
Otter Service Bulletin No. V3/0002, Revision ``C'', dated April 30, 
2014.
    (ii) If the airplane is fitted with STC SA2009NY (which can be 
found on the Internet at: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgstc.nsf/0/F7309B7D9B008C588625734F00730144?OpenDocument&Highlight=sa02009ny), 
incorporate additional inspection access panels following the 
Accomplishment Instructions of Viking Air Limited SB 3-STC (03-50)-
001, Revision ``NC'', dated April 30, 2014.
    Note 1 to paragraph (f)(2)(ii) of this AD: STC SA03-50 would be 
the Canadian equivalent of the United States STC 2A2009NY.
    (iii) If there are other STCs or modifications affecting the 
wings the operator must contact the FAA to request an FAA-approved 
alternative method of compliance using the procedures in paragraph 
(g)(1) of this AD and 14 CFR 39.19. To develop these procedures, we 
recommend you contact the STC holder for guidance in developing 
substantiating data.
    (3) Based on the accumulated air time on the wings determined in 
paragraph (f)(1) of this AD, perform initial and repetitive 
borescope and visual inspections of both the left-hand and right-
hand wing box following Part B of the Accomplishment Instructions of 
Viking DHC-3 Otter Service Bulletin V3/0002, Revision ``C'', dated 
April 30, 2014, using the inspection schedules specified in Table 1 
of paragraph (f)(3) of this AD:

       Table 1 of Paragraph (f)(3) of This AD--Inspection Schedule
------------------------------------------------------------------------
                                                         Repetitive
         Effectivity           Initial inspection        inspection
------------------------------------------------------------------------
If Viking Air Limited SB V3/  The initial           Repetitively inspect
 0002, Revision ``A'', dated   inspection is not     not to exceed every
 February 22, 2013; or         required since the    1,600 wing air time
 Viking Air Limited SB V3/     inspection was        hours accumulated
 0002, Revision ``B'', dated   accomplished while    after the last
 July 3, 2013; were complied   complying with        inspection or 2,100
 with prior to the effective   Revision ``A'' or     flight cycles after
 date of this AD.              ``B'' of Viking Air   the last
                               Limited SB V3/0002.   inspection,
                                                     whichever occurs
                                                     first.
If, as of the effective date  Inspect within 800    Repetitively inspect
 of this AD, the airplane      wing air time hours   not to exceed every
 has less than 31,200 wing     after the effective   1,600 wing air time
 air time hours.               date of this AD, or   hours accumulated
                               within 6 months       after the last
                               after the effective   inspection or 2,100
                               date of this AD,      flight cycles after
                               whichever occurs      the last
                               first.                inspection,
                                                     whichever occurs
                                                     first.
If, as of the effective date  Inspect upon or       Repetitively inspect
 of this AD, the airplane      before accumulating   not to exceed every
 has 31,200 hours wing air     32,000 wing air       1,600 wing air time
 time or more but less than    time hours or         hours accumulated
 31,600 hours wing air time    within 6 months       after the last
 hours.                        after the effective   inspection or 2,100
                               date of this AD,      flight cycles after
                               whichever occurs      the last
                               first.                inspection,
                                                     whichever occurs
                                                     first.

[[Page 53482]]

 
If, as of the effective date  Inspect within 400    Repetitively inspect
 of this AD, the airplane      wing air time hours   not to exceed every
 has 31,600 wing air time      accumulated after     1,600 wing air time
 hours or more.                the effective date    hours accumulated
                               of this AD or 3       after the last
                               months after the      inspection or 2,100
                               effective date of     flight cycles after
                               this AD, whichever    the last
                               occurs first.         inspection,
                                                     whichever occurs
                                                     first.
------------------------------------------------------------------------

    (4) If the total flight cycles have not been kept, multiply the 
total number of airplane hours time-in-service (TIS) by 2 to 
calculate the cycles. For the purpose of this AD, some examples are 
below:
    (i) .5 hour TIS x 2 = 1 cycle; and
    (ii) 200 hours TIS x 2 = 400 cycles.
    (5) If any cracks are found, contact Technical Support at Viking 
Air Limited for an FAA-approved repair and incorporate the repair 
before further flight. You can find contact information for Viking 
Air Limited in paragraph (i) of this AD. The FAA-approved repair 
must specifically reference this AD.

(g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, 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 Safety Engineer, FAA, New 
York Aircraft Certification Office (ACO), 1600 Steward 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.

(h) Related Information

    Refer to MCAI Transport Canada AD No. CF-2015-05, dated March 
18, 2015. You may examine the MCAI on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-
2015-3073. For service information related to 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) 1-800-663-8444; email: 
technical.support@vikingair.com; Internet: http://www.vikingair.com/support/service-bulletins. You may review 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.

    Issued in Kansas City, Missouri, on August 28, 2015.
Earl Lawrence,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2015-21934 Filed 9-3-15; 8:45 am]
BILLING CODE 4910-13-P


