Federal Register / Vol. 80, No. 228 / Friday, November 27, 2015 / Rules and Regulations 73955 

(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) Boeing Alert Service Bulletin 737– 

53A1323, dated December 6, 2013. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.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/ibrlocations.html. 

Issued in Renton, Washington, on October 

30, 2015. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2015–28824 Filed 11–25–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–3642; Directorate 

Identifier 2015–CE–028–AD; Amendment 

39–18335; AD 2015–24–03] 

RIN 2120–AA64 

Airworthiness Directives; SOCATA 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for 

SOCATA Model TB 9, TB 10, TB 20, TB 

21, and TB 200 airplanes. This AD 

results from mandatory continuing 

airworthiness information (MCAI) 

issued 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 horizontal 

stabilizer. We are issuing this AD to 

require actions to address the unsafe 

condition on these products. 

DATES: This AD is effective January 4, 

2016. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of January 4, 2016. 

ADDRESSES: You may examine the AD 

docket on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

3642; 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 SOCATA NORTH 

AMERICA, North Perry Airport, 601 NE 

10 Street, Pompano Beach, Florida 

33060; phone: (954) 366–3331; Internet: 

http://www.socatanorthamerica.com/

default.htm. 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–2015– 

3642. 

FOR FURTHER INFORMATION CONTACT: 

Albert J. Mercado, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4119; fax: (816) 329–4090; email: 

albert.mercado@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 SOCATA Models TB 9, TB 10, 

TB 20, TB 21, and TB 200 airplanes. The 

NPRM was published in the Federal 

Register on August 28, 2015 (80 FR 

52215). 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: 

During accomplishment of SOCATA 

Service Bulletin (SB) SB10–152–55 at 

original issue, some operators reported 

finding heavy corrosion of the horizontal 

stabilizer (HS) spar. 

The results of the technical investigation 

have identified that the corrosion was caused 

by humidity ingress in the HS on aeroplanes 

subject to severe environmental conditions. 

This condition, if not detected and 

corrected, could result in buckling and 

permanent HS distortion, possibly resulting 

in reduced control of the aeroplane. 

To address this unsafe condition, SOCATA 

issued SB 10–152–55 Revision 1 to provide 

instructions for inspection and corrective 

action. 

For the reasons described above, this AD 

requires repetitive inspections of the affected 

area of the HS and, depending on findings, 

accomplishment of applicable corrective 

action(s). 

The MCAI can be found in the AD 

docket on the Internet at: http://

www.regulations.gov/

#!documentDetail;D=FAA-2015-3642- 

0001. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comment 

received on the proposal and the FAA’s 

response to the comment. 

Request 

Anthony Pynes commented that that 

he does not believe the methodology 

used and the foundational data available 

supports the need for this AD, and thus 

he believes that this AD is not 

necessary. 

We do not agree. The FAA, in 

working with the State of Design 

airworthiness authority (EASA), 

determined that the actions of this AD 

on the horizontal stabilizer of the 

affected airplanes are necessary to 

correct an unsafe condition. Included in 

this is the risk in establishing such 

actions at the required compliance 

times. No changes to the AD have been 

made based on this comment. 

Conclusion 

We reviewed the relevant data, 

considered the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (80 FR 

52215, August 28, 2015) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (80 FR 52215, 

August 28, 2015). 

Related Service Information Under 1 

CFR Part 51 

We reviewed DAHER–SOCATA TB 

Aircraft Mandatory Service Bulletin SB 

10–152, Amendment 1, dated April 

2015. The service information describes 

procedures for inspection for corrosion 

on the horizontal stabilizer spar and 

repair, if necessary. 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. 

mstockstill on DSK4VPTVN1PROD with RULES

73956 Federal Register / Vol. 80, No. 228 / Friday, November 27, 2015 / Rules and Regulations 

Costs of Compliance 

We estimate that this AD will affect 

195 products of U.S. registry. We also 

estimate that it would take about 2 

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 AD on U.S. operators to 

be $33,150, or $170 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 15 to 38 work-hours and require 

parts costing $250 to $400 depending on 

the type of repair, for a cost of $2,325 

to $4,280 per product. The cost may 

vary depending on the extent of damage 

found. 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 

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–2015– 

3642; 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 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new AD: 

2015–24–03 SOCATA: Amendment 39– 

18335; Docket No. FAA–2015–3642; 

Directorate Identifier 2015–CE–028–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective January 4, 2016. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to SOCATA Models TB 9, 

TB 10, TB 20, TB 21, and TB 200 airplanes, 

all manufacturer serial numbers, certificated 

in any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 55: Stabilizers. 

(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 horizontal stabilizer. We are issuing this 

AD to detect and correct corrosion of the 

horizontal stabilizer (HS) spar, which could 

result in buckling and permanent HS 

distortion, possibly resulting in reduced 

control. 

(f) Actions and Compliance 

Unless already done, do the actions in 

paragraphs (f)(1) through (f)(5) of this AD: 

(1) Within 13 months after January 4, 2016 

(the effective date of this AD) and repetitively 

thereafter at intervals not to exceed 72 

months, do a special detailed inspection of 

the HS spar following the instructions of 

DAHER–SOCATA TB Aircraft Mandatory 

Service Bulletin SB 10–152, Amendment 1, 

dated April 2015. 

(2) If no discrepancy is detected during any 

inspections required by paragraph (f)(1) of 

this AD, protect the HS spar following the 

instructions of DAHER–SOCATA TB Aircraft 

Mandatory Service Bulletin SB 10–152, 

Amendment 1, dated April 2015. 

(3) If any discrepancy is detected during 

any inspection required by paragraph (f)(1) of 

this AD, before further flight, do the 

applicable corrective action(s) following the 

instructions of DAHER–SOCATA TB Aircraft 

Mandatory Service Bulletin SB 10–152, 

Amendment 1, dated April 2015. 

(4) Accomplishment of protection or 

corrective actions on an airplane as required 

by paragraph (f)(2) or (f)(3) of this AD, as 

applicable, does not constitute terminating 

action for the repetitive inspections as 

required by paragraph (f)(1) of this AD for 

that airplane. 

(5) Inspections and corrective actions on an 

airplane done before January 4, 2016 (the 

effective date of this AD) following the 

instructions of DAHER–SOCATA TB Aircraft 

Recommended Service Bulletin SB 10–152, 

dated May 2013, are acceptable to comply 

with the requirements of this AD for that 

airplane. After January 4, 2016 (the effective 

date of this AD), repetitive inspections and 

applicable corrective actions, as required by 

this AD, must be done as required by 

paragraph (f)(1) of this AD following the 

instructions of DAHER–SOCATA TB Aircraft 

Mandatory Service Bulletin SB 10–152, 

Amendment 1, dated April 2015. 

(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: Albert Mercado, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4119; fax: (816) 329– 

4090; email: albert.mercado@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 

mstockstill on DSK4VPTVN1PROD with RULES

Federal Register / Vol. 80, No. 228 / Friday, November 27, 2015 / Rules and Regulations 73957 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(h) Related Information 

Refer to MCAI European Aviation Safety 

Agency (EASA) AD No. 2015–0130, dated 

July 7, 2015; and DAHER–SOCATA TB 

Aircraft Recommended Service Bulletin SB 

10–152, dated May 2013, for related 

information. The MCAI can be found in the 

AD docket on the Internet at: http://

www.regulations.gov/

#!documentDetail;D=FAA-2015-3642-0001. 

(i) 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) DAHER–SOCATA TB Aircraft 

Mandatory Service Bulletin SB 10–152, 

Amendment 1, dated April 2015. 

(ii) Reserved. 

(3) For SOCATA service information 

identified in this AD, contact SOCATA 

NORTH AMERICA, North Perry Airport, 601 

NE 10 Street, Pompano Beach, Florida 33060; 

phone: (954) 366–3331; Internet: http://

www.socatanorthamerica.com/default.htm. 

(4) 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. In addition, you can access 

this service information on the Internet at 

http://www.regulations.gov by searching for 

and locating Docket No. FAA–2015–3642. 

(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/ibrlocations.html. 

Issued in Kansas City, Missouri, on 

November 17, 2015. 

Melvin Johnson, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2015–29876 Filed 11–25–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–3073; Directorate 

Identifier 2015–CE–017–AD; Amendment 

39–18334; AD 2015–24–02] 

RIN 2120–AA64 

Airworthiness Directives; Viking Air 

Limited Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for Viking 

Air Limited Model DHC–3 Airplanes. 

This AD results from mandatory 

continuing airworthiness information 

(MCAI) issued 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 corrugation 

cracking found at various wing stations 

and on the main spar lower cap. We are 

issuing this AD to require actions to 

address the unsafe condition on these 

products. 

DATES: This AD is effective January 4, 

2016. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of January 4, 2016. 

ADDRESSES: 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 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) 1–800–663– 

8444; email: technical.support@

vikingair.com; Internet: http://

www.vikingair.com/support/servicebulletins. 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–2015– 

3073. 

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: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to add an AD that would apply 

to Viking Air Limited Model DHC–3 

airplane. The NPRM was published in 

the Federal Register on July 28, 2015 

(80 FR 44892). 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: 

An operator found cracks on the upper 

inner wing skin corrugations emanating from 

the rib attachment points. As a result, Viking 

Air Limited released Service Bulletin (SB) 

V3/0002, Revision NC to inspect for possible 

corrugation cracking between wing stations 

34 and 110. Subsequently, operators 

discovered additional corrugation cracking at 

multiple wing stations and on the main spar 

lower cap. 

These cracks, if not detected and rectified, 

may compromise the structural integrity of 

the wing. In order to address this potentially 

unsafe condition, Viking Air Limited has 

issued SB V3/0002, Revision C, specifying 

repetitive internal borescope and visual 

inspections. This AD is issued to mandate 

compliance with that SB. 

The MCAI can be found in the AD 

docket on the Internet at: http://

www.regulations.gov/

#!documentDetail;D=FAA-2015-3073- 

0002. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comment 

received on the proposal and the FAA’s 

response to the comment. 

Request From Viking 

Viking has reviewed the FAA NPRM 

(80 FR 44892, July 28, 2015) and found 

that paragraph (f)(4) is not applicable or 

relevant to Viking SB V3/0002 Revision 

C. All cycle information is with respect 

to the wing. Viking noted that it is 

important to make the distinction 

between the airplane and the wings. The 

possibility has come to Viking’s 

attention that some operators may rotate 

wings within their airplane fleet. 

Additionally, the Model DHC–3 

airplane nominal cycles to hours ratio 

used by Viking is 1.33 cycles per hour. 

In most cases, Viking would consider an 

mstockstill on DSK4VPTVN1PROD with RULES