Federal Register / Vol. 78, No. 137 / Wednesday, July 17, 2013 / Proposed Rules 42723 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0610; Directorate 

Identifier 2013–CE–017–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pilatus 

Aircraft Ltd. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for Pilatus 

Aircraft Ltd. Model PC–12/47E 

airplanes. This proposed AD results 

from 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 common grounding of both 

the pilot Primary Flight Display (PFD) 

and the Electronic Standby Instrument 

System (ESIS). If the common ground 

fails both navigations systems could fail 

simultaneously, which could result in 

loss of control. We are issuing this 

proposed AD to require actions to 

address the unsafe condition on these 

products. 

DATES: We must receive comments on 

this proposed AD by September 3, 2013. 

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 Pilatus 

Aircraft Ltd., Customer Service 

Manager, CH–6371 STANS, 

Switzerland; telephone: +41 (0) 41 619 

65 01; fax: +41 (0) 41 619 65 76; 

Internet: http://www.pilatusaircraft.com/#32. You may review 

copies of the 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. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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 

MCAI, 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: 

Doug Rudolph, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, Kansas City, 

Missouri 64106; telephone: (816) 329– 

4059; fax: (816) 329–4090; email: 

doug.rudolph@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2013–0610; Directorate Identifier 

2013–CE–017–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD because of those 

comments. 

We will post all comments we 

receive, without change, to http:// 

regulations.gov, including any personal 

information you provide. We will also 

post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD No.: 

2013–0114, dated May 28, 2013 

(referred to after this as ‘‘the MCAI’’), to 

correct an unsafe condition for the 

specified products. The MCAI states: 

During a design review of the electrical 

supply of navigation equipment installed on 

certain PC 12/47E aeroplanes, common 

grounding of the pilot Primary Flight Display 

(PFD) and the Electronic Standby Instrument 

System (ESIS) was identified. 

This condition, if not corrected, could lead, 

in case of failure of PFD and ESIS common 

ground, to simultaneous loss of more than 

one pilot flight information display and 

inhibition of flight parameter presentation, 

possibly resulting in reduced ability to 

control the aeroplane. 

To address this potentially unsafe 

condition, Pilatus Aircraft Ltd. introduced a 

modification in production to relocate the 

ESIS ground connection. This modification is 

available for affected in-service aeroplanes 

through Pilatus Aircraft Ltd Service Bulletin 

(SB) No 34–038. 

For the reasons described above, this AD 

requires relocation of the ESIS ground 

connection. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Pilatus Aircraft Ltd. has issued Pilatus 

Service Bulletin No. 34–038, dated 

March 26, 2013. The actions described 

in this service information are intended 

to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of the Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with this State of 

Design Authority, they have notified us 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Costs of Compliance 

We estimate that this proposed AD 

will affect 230 products of U.S. registry. 

We also estimate that it would take 

about 5 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $40 per product. 

Based on these figures, we estimate 

the cost of the proposed AD on U.S. 

operators to be $106,950, or $465 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, 


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42724 Federal Register / Vol. 78, No. 137 / Wednesday, July 17, 2013 / Proposed Rules 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would not have a 

substantial direct effect on the States, on 

the relationship between the national 

Government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

the DOT Regulatory Policies and 

Procedures (44 FR 11034, February 26, 

1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 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: 

Pilatus Aircraft Ltd.: Docket No. FAA–2013– 

0610; Directorate Identifier 2013–CE– 

017–AD. 

(a) Comments Due Date 

We must receive comments by September 

3, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Pilatus Aircraft Ltd. 

Model PC–12/47E airplanes, serial numbers 

545, and 1001 through 1450, certificated in 

any category. 

(d) Subject 

Air Transport Association of America 

(ATA) Code 34: Navigation. 

(e) Reason 

This proposed AD results from 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 common 

grounding of both the pilot Primary Flight 

Display (PFD) and the Electronic Standby 

Instrument System (ESIS). If the common 

ground fails both navigations systems could 

fail simultaneously, which could result in 

loss of control. We are issuing this proposed 

AD to require actions to address the unsafe 

condition on these products. 

(f) Actions and Compliance 

Unless already done, within 3 months after 

the effective date of this AD, modify the ESIS 

return wire ground connections following the 

accomplishment instructions in Pilatus 

Aircraft Ltd. PC–12 Service Bulletin No. 34– 

038, dated March 26, 2013. 

(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: Doug Rudolph, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 Locust, 

Room 301, Kansas City, Missouri 64106; 

telephone: (816) 329–4059; fax: (816) 329– 

4090; email:. 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. 

(h) Related Information 

Refer to MCAI European Aviation Safety 

Agency (EASA) AD No.: 2013–0114, dated 

May 28, 2013, for related information, which 

can be found in the AD docket on the 

Internet at http://www.regulations.gov. For 

service information related to this AD, 

contact Pilatus Aircraft LTD., Customer 

Service Manager, CH–6371 STANS, 

Switzerland; telephone: +41 (0) 41 619 65 01; 

fax: +41 (0) 41 619 65 76; Internet: http:// 

www.pilatus-aircraft.com/#32. You may 

review copies of the 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 July 11, 

2013. 

John Colomy, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–17142 Filed 7–16–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0611; Directorate 

Identifier 2013–CE–019–AD] 

RIN 2120–AA64 

Airworthiness Directives; Beechcraft 

Corporation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede 

airworthiness directive (AD) 2011–27– 

51 that applies to certain Beechcraft 

Corporation Models 1900, 1900C, and 

1900D airplanes. AD 2011–27–51 

currently requires inspecting the 

elevator bob-weight and attaching 

linkage for correct installation and for 

damage or deformation to the weight 

and/or weight bracket with corrective 

action as necessary. Since we issued AD 

2011–27–51, a secondary elevator bobweight stop bolt has been designed. This 

proposed AD would require installation 

of the secondary elevator bob-weight 

stop bolt. The elevator bob-weight 

(stabilizer weight) traveling past its stop 

bolt may allow the attaching linkage to 

move over-center and lead to reduced 

nose down elevator control, which 

could result in loss of control. We are 

proposing this AD to correct the unsafe 

condition on these products. 

DATES: We must receive comments on 

this proposed AD by September 3, 2013. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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 


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