5428 Federal Register / Vol. 65, No. 24 / Friday, February 4, 2000 / Rules and Regulations

For the reasons discussed above, I 10 calendar days after the effective date of 21.199) to operate your airplane to a location certify that this action (1) Is not a this AD, unless already accomplished. You where you can accomplish the requirements ‘‘significant regulatory action’’ under may insert a copy of this AD in the AFM to of this AD. Executive Order 12866; (2) is not a accomplish this action: (i) When does this amendment become ‘‘• Except for certain phases of flight effective? This amendment becomes effective ‘‘significant rule’’ under DOT where the AFM specifies that deicing boots on March 27, 2000. Regulatory Policies and Procedures (44 should not be used (e.g., take-off, final Issued in Kansas City, Missouri, on January FR 11034, February 26, 1979); and (3) approach, and landing), compliance with the 27, 2000. will not have a significant economic following is required. impact, positive or negative, on a •Wing and Tail Pneumatic Terry L. Chasteen, substantial number of small entities System, if installed, must be Acting Manager, Small Airplane Directorate, under the criteria of the Regulatory activated: Certification Service. Flexibility Act. The FAA has prepared At the first sign of ice formation anywhere [FR Doc. 00–2395 Filed 2–3–00; 8:45 am] a final evaluation and placed it in the on the aircraft, or upon annunciation from BILLING CODE 4910±13±P Rules Docket. You can get a copy of this an ice detector system, whichever occurs first; and evaluation at the location listed under The system must either be continued to be DEPARTMENT OF TRANSPORTATION the caption ADDRESSES. operated in the automatic cycling mode, if List of Subjects in 14 CFR Part 39 available; or the system must be manually Federal Aviation Administration cycled as needed to minimize the ice Air transportation, Aircraft, Aviation accretions on the . 14 CFR Part 39 safety, Safety. • The wing and tail leading edge pneumatic deicing boot system may be Adoption of the Amendment [Docket No. 99±CE±64±AD; Amendment 39± deactivated only after leaving icing 11549; AD 2000±02±31] conditions and after the airplane is Accordingly, pursuant to the RIN 2120±AA64 authority delegated to me by the determined to be clear of ice.’’ (e) Can the pilot accomplish the action? Administrator, the Federal Aviation Yes. Anyone who holds at least a private Airworthiness Directives; Pilatus Administration amends part 39 of the pilot certificate, as authorized by section 43.7 Aircraft Ltd. Models PC±12 and PC±12/ Federal Aviation Regulations (14 CFR of the Federal Aviation Regulations (14 CFR 45 Airplanes part 39) as follows: 43.7), may incorporate the AFM revisions required by this AD. You must make an entry AGENCY: Federal Aviation PART 39ÐAIRWORTHINESS into the aircraft records that shows Administration, DOT. DIRECTIVES compliance with this AD, in accordance with ACTION: Final rule. section 43.9 of the Federal Aviation 1. The authority citation for part 39 Regulations (14 CFR 43.9). SUMMARY: This amendment adopts a continues to read as follows: (f) Can I comply with this AD in any other new airworthiness directive (AD) that way? Yes. Authority: 49 U.S.C. 106(g), 40113, 44701. applies to certain Pilatus Aircraft Ltd. (1) You may use an alternative method of (Pilatus) Models PC–12 and PC–12/45 § 39.13 [Amended] compliance or adjust the compliance time if: (i) Your alternative method of compliance airplanes. This AD requires replacing 2. Section 39.13 is amended by provides an equivalent level of safety; and the stick pusher capstan and the stick adding a new airworthiness directive (ii) The Manager, Small Airplane pusher servo with parts of improved (AD) to read as follows: Directorate, approves your alternative. design. The AD is the result of Submit your request through an FAA mandatory continuing airworthiness 2000–02–29 Socata—Groupe Aerospatiale: Principal Maintenance Inspector, who may Amendment 39–1547; Docket No. 99– information (MCAI) issued by the add comments and then send it to the airworthiness authority for Switzerland. CE–50–AD. Manager. (a) What airplanes are affected by this AD? (2) This AD applies to each airplane The actions specified by this AD are TBM 700 airplanes, all serial numbers, that identified in the preceding applicability intended to prevent improper operation are: provision, regardless of whether it has been of the stick pusher system caused by the (1) Equipped with pneumatic deicing modified, altered, or repaired in the area existing design configuration, which boots; and subject to the requirements of this AD. For could result in loss of control of the (2) Certificated in any category. airplanes that have been modified, altered, or airplane during a . (b) Who must comply with this AD? repaired so that the performance of the DATES: Effective March 27, 2000. Anyone who wishes to operate any of the requirements of this AD is affected, the above airplanes on the U.S. Register. The AD owner/operator must request approval for an ADDRESSES: Service information that does not apply to your airplane if it is not alternative method of compliance in applies to this AD may be obtained from equipped with pneumatic de-icing boots. accordance with paragraph (f)(1) of this AD. Pilatus Aircraft Ltd., Customer Liaison (c) What problem does this AD address? The request should include an assessment of Manager, CH–6371 Stans, Switzerland; The information necessary to activate the the effect of the modification, alteration, or telephone: +41 41 619 63 19; facsimile: pneumatic wing and tail deicing boots at the repair on the unsafe condition addressed by +41 41 610 33 51. This information may first signs of ice accumulation is critical for this AD; and, if you have not eliminated the flight in icing conditions. If we did not take unsafe condition, specific actions you also be examined at the Federal action to include this information, flight propose to address it. Aviation Administration (FAA), Central crews could experience reduced (g) Where can I get information about any Region, Office of the Regional Counsel, controllability of the aircraft due to adverse already-approved alternative methods of Attention: Rules Docket No. 99–CE–64– aerodynamic effects of ice adhering to the compliance? Contact the Small Airplane AD, 901 Locust, Room 506, Kansas City, airplane prior to the first deicing cycle. Directorate, 901 Locust, Room 301, Kansas Missouri 64106. (d) What must I do to address this City, Missouri 64106; telephone: (816) 329– FOR FURTHER INFORMATION CONTACT: Mr. problem? To address this problem, you must 4121; facsimile: (816) 329–4091. revise the Limitations Section of the FAA- (h) What if I need to fly the airplane to Roman T. Gabrys, Aerospace Engineer, approved Airplane Flight Manual (AFM) to another location to comply with this AD? The FAA, Small Airplane Directorate, 901 include the following requirements for FAA can issue a special flight permit under Locust, Room 301, Kansas City, activation of the ice protection systems. You sections 21.197 and 21.199 of the Federal Missouri 64106; telephone: (816) 329– must accomplish this action within the next Aviation Regulations (14 CFR 21.197 and 4141; facsimile: (816) 329–4090.

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SUPPLEMENTARY INFORMATION: does not have federalism implications To prevent improper operation of the stick under Executive Order 13132. pusher system caused by the existing design Events Leading to the Issuance of This For the reasons discussed above, I configuration, which could result in the loss AD certify that this action (1) is not a of control of the airplane during a stall, A proposal to amend part 39 of the ‘‘significant regulatory action’’ under accomplish the following: Federal Aviation Regulations (14 CFR Executive Order 12866; (2) is not a (a) Within the next 50 hours time-in- part 39) to include an AD that would ‘‘significant rule’’ under DOT service (TIS) after the effective date of this apply to certain Pilatus Models PC–12 Regulatory Policies and Procedures (44 AD, replace the stick pusher capstan and and PC12/45 airplanes was published in FR 11034, February 26, 1979); and (3) stick pusher servo with parts of improved the Federal Register as a notice of will not have a significant economic design, in accordance with the applicable proposed rulemaking (NPRM) on impact, positive or negative, on a maintenance manual, as specified in Pilatus November 23, 1999 (64 FR 65666). The substantial number of small entities Service Bulletin No. 22–003, dated June 24, NPRM proposed to require replacing the under the criteria of the Regulatory 1999. The new part numbers (P/N) are as stick pusher capstan and the stick Flexibility Act. A copy of the final follows: pusher servo with parts of improved evaluation prepared for this action is (1) Stick Pusher Capstan: P/N design. Accomplishment of the contained in the Rules Docket. A copy 978.61.11.124 (or FAA-approved equivalent proposed action as specified in the of it may be obtained by contacting the part number); and (2) Stick Pusher Servo: P/N 978.61.11.103 NPRM would be required in accordance Rules Docket at the location provided (or FAA-approved equivalent part number). with the applicable maintenance under the caption ADDRESSES. manual, as specified in Pilatus Service (b) As of the effective date of this AD, no Bulletin No. 22–003, dated June 24, List of Subjects in 14 CFR Part 39 person may install, on any of the affected airplanes, a stick pusher capstan or stick 1999. Air transportation, Aircraft, Aviation pusher servo that is not of the part number The NPRM was the result of safety, Safety. mandatory continuing airworthiness specified in paragraphs (a)(1) and (a)(2) of information (MCAI) issued by the Adoption of the Amendment this AD, respectively. airworthiness authority for Switzerland. (c) Special flight permits may be issued in Accordingly, pursuant to the accordance with sections 21.197 and 21.199 Interested persons have been afforded authority delegated to me by the an opportunity to participate in the of the Federal Aviation Regulations (14 CFR Administrator, the Federal Aviation 21.197 and 21.199) to operate the airplane to making of this amendment. No Administration amends part 39 of the comments were received on the a location where the requirements of this AD Federal Aviation Regulations (14 CFR can be accomplished. proposed rule or the FAA’s part 39) as follows: determination of the cost to the public. (d) An alternative method of compliance or adjustment of the compliance time that The FAA’s Determination PART 39ÐAIRWORTHINESS provides an equivalent level of safety may be DIRECTIVES After careful review of all available approved by the Manager, Small Airplane information related to the subject 1. The authority citation for part 39 Directorate, 901 Locust, Room 301, Kansas presented above, the FAA has continues to read as follows: City, Missouri 64106. The request shall be forwarded through an appropriate FAA determined that air safety and the Authority: 49 U.S.C. 106(g), 40113, 44701. public interest require the adoption of Maintenance Inspector, who may add the rule as proposed except for minor § 39.13 [Amended] comments and then send it to the Manager, Small Airplane Directorate. editorial corrections. The FAA has 2. Section 39.13 is amended by determined that these minor corrections Note 2: Information concerning the adding a new airworthiness directive existence of approved alternative methods of will not change the meaning of the AD (AD) to read as follows: and will not add any additional burden compliance with this AD, if any, may be upon the public than was already 2000–02–31 Pilatus Aircraft Ltd.: obtained from the Small Airplane proposed. Amendment 39–11549; Docket No. 99– Directorate. CE–64–AD. (e) Questions or technical information Cost Impact Applicability: Models PC–12 and PC–12/45 related to Pilatus Service Bulletin No. 22– The FAA estimates that 69 airplanes airplanes, all manufacturer serial numbers 003, dated June 24, 1999, should be directed in the U.S. registry will be affected by (MSN) up to and including MSN 180, to Pilatus Aircraft Ltd., Customer Liaison certificated in any category. this AD, that it will take approximately Manager, CH–6371 Stans, Switzerland; 8 workhours per airplane to accomplish Note 1: This AD applies to each airplane telephone: +41 41 619 63 19; facsimile: +41 identified in the preceding applicability 41 610 33 51. This service information may this action, and that the average labor provision, regardless of whether it has been be examined at the FAA, Central Region, rate is approximately $60 an hour. modified, altered, or repaired in the area Pilatus will provide parts free of charge subject to the requirements of this AD. For Office of the Regional Counsel, 901 Locust, until March 2000. Based on these airplanes that have been modified, altered, or Room 506, Kansas City, Missouri 64106. figures, the total cost impact of this AD repaired so that the performance of the Note 3: The subject of this AD is addressed on U.S. operators is estimated to be requirements of this AD is affected, the in Swiss AD HB 99–406, dated August 16, $33,120, or $480 per airplane. owner/operator must request approval for an 1999. alternative method of compliance in (f) This amendment becomes effective on Regulatory Impact accordance with paragraph (d) of this AD. March 27, 2000. These regulations will not have a The request should include an assessment of the effect of the modification, alteration, or Issued in Kansas City, Missouri, on January substantial direct effect on the States, on repair on the unsafe condition addressed by 27, 2000. the relationship between the national this AD; and, if the unsafe condition has not Terry L. Chasteen, Government and the States, or on the been eliminated, the request should include distribution of power and specific proposed actions to address it. Acting Manager, Small Airplane Directorate, Aircraft Certification Service. responsibilities among the various Compliance: Required as indicated in the levels of government. Therefore, the body of this AD, unless already [FR Doc. 00–2399 Filed 2–3–00; 8:45 am] FAA has determined that this final rule accomplished. BILLING CODE 4910±13±P

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