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CFR Citation: 14 CFR Part 39

Docket ID: [Docket No. FAA-2008-0291; Directorate Identifier 2008-CE-019-AD; Amendment 39-15429; AD 2008-06-17]

RIN ID: RIN 2120-AA64

NOTICE: RULES

ACTION: Airworthiness Directives:

DOCUMENT ACTION: Final rule; request for comments.

SUBJECT CATEGORY: Airworthiness Directives; PILATUS AIRCRAFT LTD. Models PC-12, PC- 12/45, and PC-12/47 Airplanes

DATES: This AD becomes effective April 2, 2008.

On April 2, 2008, the Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD.

We must receive comments on this AD by April 14, 2008.

DOCUMENT SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Some operators have reported occurrences where the rear stick pusher cable clamp shifted forward on the elevator cable. This condition, if not corrected, may reduce the effectiveness of the stickpusher and/or limit elevator control movement.
This AD requires actions that are intended to address the unsafe condition described in the MCAI.

SUMMARY: Pilatus Aircraft Ltd. Models PC-12, PC-12/45, and PC-12/47 Airplanes,

SUPPLEMENTAL INFORMATION

The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA AD No: 20080047, dated February 28, 2008 (referred to after this as ``the MCAI''), to correct an unsafe condition for the specified products. The MCAI states:

Some operators have reported occurrences where the rear stick pusher cable clamp shifted forward on the elevator cable. This condition, if not corrected, may reduce the effectiveness of the stickpusher and/or limit elevator control movement.

For the reason described above, this Airworthiness Directive (AD) requires the inspection of the stickpusher servocables for correct installation, position and tension and replacement of the discrepant parts.

You may obtain further information by examining the MCAI in the AD docket.

Relevant Service Information

PILATUS AIRCRAFT LTD. (Pilatus) has issued PC12 Service Bulletin No. 27018, dated November 27, 2007. 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 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 issuing this AD because we evaluated all information provided by the State of Design Authority and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design.
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 have also required different actions in this AD from those in the MCAI in order to follow FAA policies. Any such differences are described in a separate paragraph of the AD. These requirements take precedence over those copied from the MCAI.

FAA's Determination of the Effective Date

An unsafe condition exists that requires the immediate adoption of this AD. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because Pilatus has confirmed four occurrences of the rear stickpusher cable shifting forward on the elevator cable. Although all malfunction cases occurred on the ground, it cannot be excluded that flight may be attempted with a slack stickpusher cable. If this condition happens, it could result in reduced effectivity of the stick pusher and/or limit elevator control, affecting notification of the pilot of upcoming stall and controllability of the airplane. Therefore, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in fewer than 30 days.

Comments Invited

This AD is a final rule that involves requirements affecting flight safety, and we did not precede it by notice and opportunity for public comment. We invite you to send any written relevant data, views, or arguments about this AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA20080291; Directorate Identifier 2008CE019AD'' at the beginning of your comments. [[Page 13439]]
We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this AD. We will consider all comments received by the closing date and may amend this AD because of those comments.

We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this AD.

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 that 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.

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 39AIRWORTHINESS DIRECTIVES
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]
2. The FAA amends Sec. 39.13 by adding the following new AD: 20080617 PILATUS AIRCRAFT LTD.: Amendment 3915429; Docket No. FAA20080291; Directorate Identifier 2008CE019AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective April 2, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Models PC12, PC12/45, and PC12/47 airplanes, all serial numbers, certificated in any category. Subject
(d) Air Transport Association of America (ATA) Code 27: Flight Controls.
Reason
(e) The mandatory continuing airworthiness information (MCAI) states:

Some operators have reported occurrences where the rear stick pusher cable clamp shifted forward on the elevator cable. This condition, if not corrected, may reduce the effectiveness of the stickpusher and/or limit elevator control movement.

For the reason described above, this Airworthiness Directive (AD) requires the inspection of the stickpusher servocables for correct installation, position and tension and replacement of the discrepant parts.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within the next 20 hours timeinservice (TIS) after the effective date of this AD or within the next 20 days after the effective date of this AD, whichever occurs first, inspect the stickpusher servocables for correct installation, position, and tension following paragraph 3.B.(1) of PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007.
(2) If during the inspection required in paragraph (f)(1) of this AD you find any incorrectly installed or positioned stick pusher servo cables, before further flight adjust the stickpusher servo cable tension as necessary following paragraph 3.B.(2) of PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007.
(3) If during the inspection required in paragraph (f)(1) of this AD you find incorrect tension and/or indications that the stickpusher servocables have moved in the cable clamps, before further flight replace the affected parts following paragraph 3.B.(4) of PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007.
(4) If during the inspection required in paragraph (f)(1) of this AD you find no signs that the stickpusher servocables have moved in the cable clamps, before further flight replace the nuts, washers, and bolts following paragraph 3.B.(5) of PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007. FAA AD Differences

Note: 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) 3294059; fax: (816) 3294090. 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 FAAapproved. 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, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 21200056.
Related Information
(h) Refer to MCAI European Aviation Safety Agency (EASA) AD No: 20080047, dated February 28, 2008; and PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007, for related information.
Material Incorporated by Reference
(i) You must use PILATUS AIRCRAFT LTD. PC12 Service Bulletin No. 27018, dated November 27, 2007, to do the actions required by this AD, unless the AD specifies otherwise.
[[Page 13440]]
(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, CH6371 STANS, Switzerland; telephone: +41 (0)41 619 62 08; fax: +41 (0)41 619 73 11; email: SupportPC12@pilatusaircraft.com. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 2027416030, or go to: http://www.archives.gov/federal register/cfr/ibrlocations.html.

Issued in Kansas City, Missouri on March 5, 2008. David R. Showers,
Acting Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. E85008 Filed 31208; 8:45 am]
BILLING CODE 491013P

FOR FURTHER INFORMATION CONTACT Doug Rudolph, Aerospace Engineer, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 3294059; fax: (816) 3294090.