This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents. Prices of

new books are listed in the first FEDERAL

REGISTER issue of each week.

Rules and Regulations Federal Register

5467 

Vol. 76, No. 21 

Tuesday, February 1, 2011 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1011; Directorate 

Identifier 2010–CE–047–AD; Amendment 

39–16571; AD 2011–01–14] 

RIN 2120–AA64 

Airworthiness Directives; Pilatus 

Aircraft Ltd. Models PC–6, PC–6–H1, 

PC–6–H2, PC–6/350, PC–6/350–H1, PC– 

6/350–H2, PC–6/A, PC–6/A–H1, PC–6/ 

A–H2, PC–6/B–H2, PC–6/B1–H2, PC–6/ 

B2–H2, PC–6/B2–H4, PC–6/C–H2, and 

PC–6/C1–H2 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

the products listed above. 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: 

The current Aircraft Maintenance Manual 

(AMM) of PC–6 B2–H2 and B2–H4 models 

does not include a Chapter 04 in the 

Airworthiness Limitations Section (ALS). For 

PC–6 models other than B2–H2 and B2–H4, 

no ALS at all is included in the AMM. 

With the latest Revision 12 of the AMM, 

a new Chapter 04 has been introduced in the 

AMM for PC–6 B2–H2 and B2–H4 models. 

For PC–6 models other than B2–H2 and 

B2–H4, a new ALS document has been 

implemented as well. 

These documents include the Mandatory 

Continuing Airworthiness Information 

(MCAI) which are maintenance requirements 

and/or airworthiness limitations developed 

by Pilatus Aircraft Ltd and approved by 

EASA. Failure to comply with these MCAI 

constitutes an unsafe condition. 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

March 8, 2011. 

On March 8, 2011, the Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov 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 20590. 

For service information identified in 

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.pilatusaircraft.com. 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. 

FOR FURTHER INFORMATION CONTACT: 

Doug Rudolph, Aerospace Engineer, 

FAA, Small Airplane Directorate, 901 

Locust, Room 301, ACE–112 Kansas 

City, Missouri 64106; telephone: (816) 

329–4059; fax: (816) 329–4090. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on October 7, 2010 (75 FR 

62002), and proposed to supersede AD 

2005–17–01, Amendment 39–14221 (70 

FR 47716; August 15, 2005). That NPRM 

proposed to correct an unsafe condition 

for the specified products. The MCAI 

states that: 

The current Aircraft Maintenance Manual 

(AMM) of PC–6 B2–H2 and B2–H4 models 

does not include a Chapter 04 in the 

Airworthiness Limitations Section (ALS). For 

PC–6 models other than B2–H2 and B2–H4, 

no ALS at all is included in the AMM. 

With the latest Revision 12 of the AMM, 

a new Chapter 04 has been introduced in the 

AMM for PC–6 B2–H2 and B2–H4 models. 

For PC–6 models other than B2–H2 and 

B2–H4, a new ALS document has been 

implemented as well. 

These documents include the Mandatory 

Continuing Airworthiness Information 

(MCAI) which are maintenance requirements 

and/or airworthiness limitations developed 

by Pilatus Aircraft Ltd and approved by 

EASA. Failure to comply with these MCAI 

constitutes an unsafe condition. 

For the reasons described above, this MCAI 

requires the implementation and the 

compliance with these new maintenance 

requirements and/or airworthiness 

limitations documents. 

Since we issued AD 2005–17–01 

concerning the inspection of the 

stabilizer-trim attachment components, 

Pilatus has updated their maintenance 

programs with new requirements and 

limitations. Since we are now 

mandating the new AMM, we are 

completely superseding AD 2005–17– 

01. Additionally, the AMM revisions in 

this AD action also include the new 

repetitive inspections for the wing strut 

fittings and spherical bearings currently 

included in AD 2009–18–03 (74 FR 

43636; August 27, 2009). We are also 

removing those repetitive inspections 

from AD 2009–18–03. You may obtain 

further information by examining the 

MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request for Clarification on 

Applicability 

Pilatus Aircraft commented that there 

is no consistency between 2010–CE– 

047–AD and 2009–CE–034–AD (AD 

2009–18–03 (R1); 76 FR 1990; January 

12, 2011) regarding the applicability of 

airplanes in regards to the manufacturer 

serial numbers (MSN) on the Fairchild 

PC–6 airplanes. 

The FAA agrees that the applicability 

of airplanes needs corrected. We 

changed the applicability to clarify that 

some specific MSNs can also be 

identified as Fairchild Republic 

Company PC–6 airplanes, Fairchild 

Industries PC–6 airplanes, Fairchild 

Heli Porter PC–6 airplanes, or FairchildHiller Corporation PC–6 airplanes. 

Discussion Section Contains Confusing 

Reference to ADs 

Pilatus Aircraft commented that the 

Discussion section contains confusing 

references to other ADs. They 


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commented that FAA AD 2005–17–01 

refers to Pilatus SB 53–001/FOCA AD 

HB–2005–263. That Service Bulletin 

(SB) involves ‘‘Stabilizer-Trim 

Attachment Components,’’ whereas FAA 

AD 2009–18–03 mentioned later in the 

NPRM involves wing strut fittings. The 

new CH4/ALS documents for the PC–6 

contain the repetitive inspection 

requirements of both AD 2005–17–01 

and AD 2009–18–03. Because the 

Discussion section references various 

FAA ADs and service bulletins, it is 

difficult to follow which service 

information corresponds with which 

AD. 

The FAA agrees that the discussion 

paragraph could be more concise. We 

changed the information in the 

discussion paragraph to make it easier 

to understand how this AD action 

affects both AD 2005–17–01 and AD 

2009–18–03. 

Actions and Compliance Section States 

Both Documents Required 

The Actions and Compliance section 

indicates that both AMM Doc. 01975 

Rev 12 and ALS Doc. 02334 are 

applicable for each model airplane. 

Only one document should be 

applicable for each model airplane, not 

both. 

The FAA agrees because both 

manuals are not required for each model 

of airplane, only the one that is 

appropriate. We changed paragraph (f) 

to specify which of the above 

documents apply to which airplanes. 

Conclusion 

We reviewed the available data, 

including the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We determined that these changes will 

not increase the economic burden on 

any operator or increase the scope of the 

AD. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have required different 

actions in this AD from those in the 

MCAI in order to follow FAA policies. 

Any such differences are highlighted in 

a Note within the AD. 

Costs of Compliance 

We estimate that this AD will affect 

50 products of U.S. registry. We also 

estimate that it will take about 1 workhour per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate 

the cost of this AD to the U.S. operators 

to be $4,250, or $85 per product. 

In addition, we estimate that any 

necessary follow-on actions based on 

maintenance requirements for the wing 

strut fittings and the spherical bearings 

following the Aircraft Maintenance 

Manual and the Airworthiness 

Limitations Section would take about 40 

work-hours and require parts costing 

$12,000, for a cost of $15,400 per 

product. 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 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); and 

(3) 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD Docket. 

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 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 

removing Amendment 39–14221 (70 FR 

47716; August 15, 2005) and adding the 

following new AD: 

2011–01–14 Pilatus Aircraft Limited: 

Amendment 39–16571; Docket No. 

FAA–2010–1011; Directorate Identifier 

2010–CE–047–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective March 8, 2011. 

Affected ADs 

(b) This AD supersedes AD 2005–17–01, 

Amendment 39–14221. 

Applicability 

(c) This AD applies to Pilatus Aircraft Ltd. 

Models PC–6, PC–6–H1, PC–6–H2, PC–6/350, 

PC–6/350–H1, PC–6/350–H2, PC–6/A, PC–6/ 

A–H1, PC–6/A–H2, PC–6/B–H2, PC–6/B1– 

H2, PC–6/B2–H2, PC–6/B2–H4, PC–6/C–H2, 

and PC–6/C1–H2 airplanes, all manufacturer 

serial number (MSN) 101 through 999, and 

MSN 2001 through 2092, certificated in any 

category. 

Note 1: For MSN 2001–2092, these 

airplanes are also identified as Fairchild 

Republic Company PC–6 airplanes, Fairchild 


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Federal Register / Vol. 76, No. 21 / Tuesday, February 1, 2011 / Rules and Regulations 5469 

Industries PC–6 airplanes, Fairchild Heli 

Porter PC–6 airplanes, or Fairchild-Hiller 

Corporation PC–6 airplanes. 

Subject 

(d) Air Transport Association of America 

(ATA) Code 5: Time Limits. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

The current Aircraft Maintenance Manual 

(AMM) of PC–6 B2–H2 and B2–H4 models 

does not include a Chapter 04 in the 

Airworthiness Limitations Section (ALS). For 

PC–6 models other than B2–H2 and B2–H4, 

no ALS at all is included in the AMM. 

With the latest Revision 12 of the AMM, 

a new Chapter 04 has been introduced in the 

AMM for PC–6 B2–H2 and B2–H4 models. 

For PC–6 models other than B2–H2 and 

B2–H4, a new ALS document has been 

implemented as well. 

These documents include the Mandatory 

Continuing Airworthiness Information 

(MCAI) which are maintenance requirements 

and/or airworthiness limitations developed 

by Pilatus Aircraft Ltd and approved by 

EASA. Failure to comply with these MCAI 

constitutes an unsafe condition. 

For the reasons described above, this MCAI 

requires the implementation and the 

compliance with these new maintenance 

requirements and/or airworthiness 

limitations documents. 

Actions and Compliance 

(f) Unless already done, do the following 

actions: 

(1) For all affected Models PC–6/B2–H2 

and PC–6/B2–H4; Before further flight after 

March 8, 2011 (the effective date of this AD), 

incorporate the maintenance requirements as 

specified in Pilatus PC–6 AMM Chapter 04– 

00–00, Revision 12, Document Number 

01975, dated May 14, 2010, into your FAAaccepted maintenance program. 

(2) For all affected PC–6 models other than 

the Models PC–6/B2–H2 and PC–6/B2–H4; 

Before further flight after March 8, 2011 (the 

effective date of this AD), incorporate the 

maintenance requirements as specified in 

Pilatus PC–6 AMM ALS Document Number 

02334, Revision 1, dated May 14, 2010, into 

your FAA-accepted maintenance program. 

Note 2: The AMM revisions in this AD 

action include the repetitive inspections for 

the wing strut fittings and the spherical 

bearings currently included in AD 2009–18– 

03. AD 2009–18–03 (R1), Amendment 39– 

16570 has been revised to remove these 

repetitive inspections. 

FAA AD Differences 

Note 3: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(g) 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. 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 FAAapproved 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. 

Related Information 

(h) Refer to MCAI EASA AD No.: 2010– 

0176, dated August 20, 2010; and Pilatus PC– 

6 AMM Chapter 04–00–00, Revision 12, 

Document Number 01975, Revision 12, dated 

May 14, 2010; or in the Pilatus PC–6 ALS 

Document Number 02334, Revision 1, dated 

May 14, 2010, for related information. 

Material Incorporated by Reference 

(i) You must use Pilatus PC–6 AMM 

Chapter 04–00–00, Revision 12, Document 

Number 01975, dated May 14, 2010; and 

incorporate the Pilatus PC–6 ALS Document 

Number 02334, Revision 1, dated May 14, 

2010, to do the actions required by this AD, 

unless the AD specifies otherwise. 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

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. 

(3) 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. 

(4) You may also review copies of the 

service information incorporated by reference 

for this AD 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/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Kansas City, Missouri, on 

December 28, 2010. 

Earl Lawrence, 

Manager, Small Airplane Directorate, Aircraft 

Certification Service. 

[FR Doc. 2010–33332 Filed 1–31–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2010–1028; Airspace 

Docket No. 10–AGL–16] 

Amendment of Class E Airspace; 

Greensburg, IN 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends Class E 

airspace at Greensburg, IN, to 

accommodate new Area Navigation 

(RNAV) Standard Instrument Approach 

Procedures (SIAP) at Decatur County 

Memorial Hospital Heliport, 

Greensburg, IN. The FAA is taking this 

action to enhance the safety and 

management of Instrument Flight Rule 

(IFR) operations at the heliport. 

DATES: Effective date: 0901 UTC, May 5, 

2011. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.9 and publication of 

conforming amendments. 

FOR FURTHER INFORMATION CONTACT: 

Scott Enander, Central Service Center, 

Operations Support Group, Federal 

Aviation Administration, Southwest 

Region, 2601 Meacham Blvd., Fort 

Worth, TX 76137; telephone (817) 321– 

7716. 

SUPPLEMENTARY INFORMATION: 

History 

On November 8, 2010, the FAA 

published in the Federal Register a 

notice of proposed rulemaking to amend 

Class E airspace for Greensburg, IN, 

creating additional controlled airspace 

at Decatur County Memorial Hospital 

Heliport (75 FR 68551) Docket No. 


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