Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and PC-12/45 Airplanes, 48914-48918 [05-16528]

Download as PDF 48914 Federal Register / Vol. 70, No. 161 / Monday, August 22, 2005 / Proposed Rules TABLE 1.—AIRBUS AIRPLANES AFFECTED BY THIS AD As identified in Airbus Service Bulletin— Airbus model A300 B2–1A, B2–1C, B2K–3C, B2–203, B4–2C, B4–103, and B4–203 airplanes ................................... A300 B4–601, B4–603, B4–620, B4–622, A300 B4–605R, B4–622R, F4–605R, F4–622R, and A300 C4–605R Variant F airplanes. A310–203, –204, –221, –222, –304, –322, –324, and –325 airplanes ..................................................... Unsafe Condition (d) This AD results from findings of severe corrosion on airplanes previously inspected in accordance with the existing AD. We are issuing this AD to detect and correct corrosion at the lower rim area of the fuselage rear pressure bulkhead, which could result in reduced structural integrity of the bulkhead, and consequent decompression of the cabin. (h) If any corrosion damage or crack is found during any inspection or corrective action required by this AD, and the service bulletin recommends contacting Airbus for repair instructions: Before further flight, repair in accordance with a method approved by the Manager, International Branch, ANM– 116, FAA, Transport Airplane Directorate. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Reporting Service Bulletin Reference (f) For the purposes of this AD, the term ‘‘service bulletin’’ means the accomplishment instructions of the applicable service bulletin identified in Table 1 of this AD. Inspections and Corrective Actions (g) Within 60 months since the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness; or within 18 months after the effective date of this AD; whichever is later: Do the detailed inspection, special detailed inspections, and any applicable eddy current and X-ray inspection, for corrosion on the rear pressure bulkhead between stringer (STGR) 27 (right hand) and STGR27 (left hand) in accordance with the applicable service bulletin, and repeat these inspections thereafter at intervals not to exceed 36 months. Do any applicable related investigative and corrective actions before further flight in accordance with the applicable service bulletin, except as provided by paragraph (h) of this AD. Note 1: For the purposes of this AD, a detailed inspection is: ‘‘An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.’’ Note 2: For the purposes of this AD, a special detailed inspection is: ‘‘An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. The examination is likely to make extensive use of specialized inspection techniques and/or equipment. Intricate cleaning and substantial access or disassembly procedure may be required.’’ VerDate jul<14>2003 16:05 Aug 19, 2005 Jkt 205001 Alternative Methods of Compliance (AMOCs) (j)(1) The Manager, International Branch, ANM–116, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) AMOCs approved previously according to AD 98–19–22, amendment 39–10763, are not approved as AMOCs for this AD. Related Information (k) French airworthiness F–2004–193 dated December 22, 2004, also addresses the subject of this AD. Issued in Renton, Washington, on August 11, 2005. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–16534 Filed 8–19–05; 8:45 am] BILLING CODE 4910–13–P Frm 00016 A300–53–0363 ..... A300–53–6136 ..... October 27, 2004. October 27, 2004. A310–53–2114 ..... October 27, 2004. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–22018; Directorate Identifier 2005–CE–41–AD] RIN 2120–AA64 (i) Submit a report of corrosion found during the inspections required by paragraph (g) of this AD to SE–A21, AIRBUS CUSTOMER SERVICES DIRECTORATE, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France, at the applicable time specified in paragraph (i)(1) or (i)(2) of this AD. The report must include the inspection type, a description of any corrosion found, the airplane serial number, and the number of landings and flight hours on the airplane. Under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has approved the information collection requirements contained in this AD and has assigned OMB Control Number 2120–0056. (1) If the inspection was done after the effective date of this AD: Submit the report within 30 days after the inspection. (2) If the inspection was accomplished prior to the effective date of this AD: Submit the report within 30 days after the effective date of this AD. PO 00000 Dated— Fmt 4702 Sfmt 4702 Airworthiness Directives; Pilatus Aircraft Ltd. Models PC–12 and PC–12/45 Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Models PC–12 and PC–12/45 airplanes. This proposed AD would require you to determine (maintenance records check and/or inspection) whether certain nose landing gear (NLG), main landing gear (MLG), and MLG shock absorber assemblies with a serial number beginning with ‘‘AM’’ are installed, and, if installed, would require you to replace them with ones without the ‘‘AM.’’ This proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. We are issuing this proposed AD to detect and correct the NLG, MLG, and MLG shock absorber assemblies that are affected by hydrogen embrittlement, which could result in failure of the landing gear. This failure could lead to nose or main landing gear collapse during operation with consequent loss of airplane control. DATES: We must receive any comments on this proposed AD by September 23, 2005. ADDRESSES: Use one of the following to submit comments on this proposed AD: • DOT Docket Web site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. E:\FR\FM\22AUP1.SGM 22AUP1 Federal Register / Vol. 70, No. 161 / Monday, August 22, 2005 / Proposed Rules • Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC 20590– 001. • Fax: 1–202–493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. To get the service information identified in this proposed AD, contact Pilatus Aircraft Ltd., Customer Liaison Manager, CH–6371 Stans, Switzerland; telephone: +41 41 619 6208; facsimile: +41 41 619 7311; e-mail: SupportPC12@pilatus-aircraft.com or from Pilatus Business Aircraft Ltd., Product Support Department, 11755 Airport Way, Broomfield, Colorado 80021; telephone: (303) 465–9099; facsimile: (303) 465–6040. To view the comments to this proposed AD, go to https://dms.dot.gov. This is docket number FAA–2005– 22018; Directorate Identifier 2005–CE– 41–AD. FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329– 4059; facsimile: (816) 329–4090. SUPPLEMENTARY INFORMATION: Comments Invited How do I comment on this proposed AD? We invite you to submit any written relevant data, views, or arguments regarding this proposal. Send your comments to an address listed under ADDRESSES. Include the docket number, ‘‘FAA–2005–22018; Directorate Identifier 2005–CE–41–AD’’ at the beginning of your comments. We will post all comments we receive, without change, to https://dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed rulemaking. Using the search function of our docket Web site, anyone can find and read the comments received into any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). This is docket number FAA–2005–22018; Directorate Identifier 2005–CE–41–AD. You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78) or you may visit https://dms.dot.gov. Are there any specific portions of this proposed AD I should pay attention to? VerDate jul<14>2003 16:05 Aug 19, 2005 Jkt 205001 We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. If you contact us through a nonwritten communication and that contact relates to a substantive part of this proposed AD, we will summarize the contact and place the summary in the docket. We will consider all comments received by the closing date and may amend this proposed AD in light of those comments and contacts. Docket Information Where can I go to view the docket information? You may view the AD docket that contains the proposal, any comments received, and any final disposition in person at the DMS Docket Offices between 9 a.m. and 5 p.m. (eastern time), Monday through Friday, except Federal holidays. The Docket Office (telephone 1–800–647–5227) is located on the plaza level of the Department of Transportation NASSIF Building at the street address stated in ADDRESSES. You may also view the AD docket on the Internet at https:// dms.dot.gov. The comments will be available in the AD docket shortly after the DMS receives them. Discussion What events have caused this proposed AD? The Federal Office for Civil Aviation (FOCA), which is the airworthiness authority for Switzerland, recently notified FAA that an unsafe condition may exist on Pilatus Models PC–12 and PC–12/45 airplanes. The FOCA reports that some components of the main landing gear (MLG), nose landing gear (NLG), and MLG shock absorber assemblies have the potential to fail during operation. Investigations revealed that an improper cadmium plating process applied to the high strength steel part causes the problem. This can result in hydrogen embrittlement. Affected are only components that are installed on MLG, NLG, and MLG shock absorber assemblies, with serial numbers that start with the letters ‘‘AM.’’ Components in this condition can experience a decreased fatigue life. What is the potential impact if FAA took no action? Failure of the nose or main landing gear could lead to nose or main landing gear collapse during operation with consequent loss of airplane control. Is there service information that applies to this subject? Pilatus has issued Pilatus PC12 Service Bulletin No. 32–016, dated March 11, 2004. PO 00000 Frm 00017 Fmt 4702 Sfmt 4702 48915 What are the provisions of this service information? The service bulletin includes procedures for: —Checking to identify NLG, MLG, and MLG shock absorber assemblies with serial numbers that start with the letters AM; and —Replacing, if necessary, specified components in all NLG, MLG, and MLG shock absorber assemblies which have serial numbers that start with the letters AM. What action did the FOCA take? The FOCA classified this service bulletin as mandatory and issued Swiss AD Number HB–2005–168, dated May 3, 2005, to ensure the continued airworthiness of these airplanes in Switzerland. Did the FOCA inform the United States under the bilateral airworthiness agreement? These Pilatus Models PC–12 and PC–12/45 airplanes are manufactured in Switzerland and are type-certificated for operation in the United States under the provisions of section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the applicable bilateral airworthiness agreement. Under this bilateral airworthiness agreement, the FOCA has kept us informed of the situation described above. FAA’s Determination and Requirements of This Proposed AD What has FAA decided? We have examined the FOCA’s findings, reviewed all available information, and determined that AD action is necessary for products of this type design that are certificated for operation in the United States. Since the unsafe condition described previously is likely to exist or develop on other Pilatus Models PC–12 and PC– 12/45 airplanes of the same type design that are registered in the United States, we are proposing AD action to detect and correct the NLG, MLG, and MLG shock absorber assemblies that are affected by hydrogen embrittlement which could result in failure of the landing gear. This failure could lead to nose or main landing gear collapse during operation with consequent loss of airplane control. Even though the serial number effectivity of the FOCA AD and Pilatus service bulletin only includes MSN 101 through MSN 471 and MSN 473 through MSN 482, FAA believes that, although the practice of swapping of parts, components, and assemblies is rare, it is still possible. Therefore, we are proposing that the effectivity include Pilatus Models PC–12 and PC–12/45 E:\FR\FM\22AUP1.SGM 22AUP1 48916 Federal Register / Vol. 70, No. 161 / Monday, August 22, 2005 / Proposed Rules airplanes with MSN 101 through MSN 625. What would this proposed AD require? This proposed AD would require you to determine (maintenance records check and/or inspection) whether certain NLG, MLG, and MLG shock absorber assemblies with a serial number beginning with ‘‘AM’’ are installed, and, if installed, would require you to replace them with ones without the ‘‘AM.’’ How does the revision to 14 CFR part 39 affect this proposed AD? On July 10, 2002, we published a new version of 14 CFR part 39 (67 FR 47997, July 22, 2002), which governs FAA’s AD system. This regulation now includes material that relates to altered products, special flight permits, and alternative methods of compliance. This material previously was included in each individual AD. Since this material is included in 14 CFR part 39, we will not include it in future AD actions. Costs of Compliance How many airplanes would this proposed AD impact? We estimate that this proposed AD affects 350 airplanes in the U.S. registry. What would be the cost impact of this proposed AD on owners/operators of the affected airplanes? We estimate the following costs to do the proposed check of the logbook to identify NLG, MLG, and MLG shock absorber assemblies with serial numbers that start with the letters AM: Labor cost Parts cost Total cost per airplane 1 work hour × $65 per hour = $65 ................................................................. Not applicable ......... $65. We estimate the following costs to do any necessary inspection and replacement of all possible NLG, MLG, and MLG shock absorber assemblies that would be required based on the results of this proposed check of the logbook. Labor cost $3,800 for the NLG kit, $850 for the MLG kit, and $2,600 for the MLG shock absorber assembly kit. Pilatus will provide warranty credit for replacing the specified assemblies to the extent stated in the service information. Authority for This Rulemaking What authority does FAA have for issuing this rulemaking action? 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 AD. Regulatory Findings Would this proposed AD impact various entities? We have 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 VerDate jul<14>2003 16:05 Aug 19, 2005 Jkt 205001 Total cost per airplane the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. Would this proposed AD involve a significant rule or regulatory action? For the reasons discussed above, I certify that this proposed 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); 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 summary of the costs to comply with this proposed AD (and other information as included in the Regulatory Evaluation) and placed it in the AD Docket. You may get a copy of this summary by sending a request to us at the address listed under ADDRESSES. Include ‘‘AD Docket FAA–2005–22018; Directorate Identifier 2005–CE–41–AD’’ in your request. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the Federal Aviation Administration PO 00000 Frm 00018 Fmt 4702 Sfmt 4702 350 × $65 = $22,750. We have no way of determining the number of airplanes that may need this replacement: Parts cost 41 work hours × $65 per hour = $2,665 ............ Total cost on U.S. operators $2,665 + $3,800 + $850 + $2,600 = $9,915. 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 airworthiness directive (AD): Pilatus Aircraft Ltd.: Docket No. FAA–2005– 22018; Directorate Identifier 2005–CE– 41–AD. When Is the Last Date I Can Submit Comments on This Proposed AD? (a) We must receive comments on this proposed airworthiness directive (AD) by September 23, 2005. What Other ADs Are Affected By This Action? (b) None. What Airplanes Are Affected by This AD? (c) This AD affects Models PC–12 and PC– 12/45 airplanes, manufacturer serial numbers (MSN) 101 through MSN 625, that are certificated in any category. What Is the Unsafe Condition Presented in This AD? (d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. The actions specified in this AD are intended to detect and correct the nose E:\FR\FM\22AUP1.SGM 22AUP1 Federal Register / Vol. 70, No. 161 / Monday, August 22, 2005 / Proposed Rules landing gear (NLG), main landing gear (MLG), and MLG shock absorber assemblies that are affected by hydrogen embrittlement, which could result in failure of the landing gear. This failure could lead to nose or main landing gear collapse during operation with consequent loss of airplane control. 48917 What Must I Do To Address This Problem? (e) To address this problem, you must do the following: Actions Compliance Procedures (1) Maintenance Records Check: ........................................................... (i) For MSN 101 through MSN 471 and MSN 473 through MSN 482: Check the maintenance records to determine whether the following replacements have been made: (A) Nose landing gear (NLG) assemblies, part number (P/N) 532.20.12.038 and P/N 532.20.12.039 with serial numbers (S/N) AM 001 through AM 045 and AM 048 through AM 054; (B) Main landing gear (MLG) assemblies, P/N 532.10.12.049 and P/N 532.10.12.050 with S/N AM 001 thru AM 027, AM 029 through AM 045, AM 047 through AM 050, AM 052, and AM 053; and (C) MLG shock absorber assemblies, P/N 532.10.12.175, with S/N AM 001 through AM 017, AM 019, AM 021 through AM 063, AM 065 through AM 070, AM 072 through AM 074, AM 080, AM 084, AM 086, AM 089, AM 090, AM 093 through AM 096, AM 099, AM 103 through AM 107 (ii) For MSN 472 and MSN 483 through MSN 625: Verify that the S/N parts identified in paragraphs (e)(1)(i)(A), (e)(1)(i)(B), and (e)(1)(i)(C) of this AD have not been installed (iii) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may make this check. You must make an entry into the aircraft records that shows compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9) (2) If you find as a result of the check required by paragraph (e)(1)(i) of this AD that there is no record of the specified assembly replacement, or as a result of the check required by paragraph (e)(1)(ii) of this AD that parts have been installed in the service, then inspect: (i) The NLG assemblies, P/N 532.20.12.038 and P/N 532.20.12.039, for any S/N that starts with AM 001 through AM 045 and AM 048 through AM 054 (ii) The MLG assemblies, P/N 532.10.12.049 and P/N 532.10.12.050, for any S/N that starts with AM 001 thru AM 027, AM 029 through AM 045, AM 047 through AM 050, AM 052, and AM 053 (iii) The MLG shock absorber assemblies, P/N 532.10.12.175, for any S/N that starts with AM 001 through AM 017, AM 019, AM 021 through AM 063, AM 065 through AM 070, AM 072 through AM 074, AM 080, AM 084, AM 086, AM 089, AM 090, AM 093 through AM 096, AM 099, and AM 103 through AM 107 (iv) You may choose to do the inspection without doing the maintenance records check (3) If during the inspection required by paragraph (e)(2) of this AD, you find:. (i) Any NLG assembly, P/N 532.20.12.038 and P/N 532.20.12.039, with any S/N that starts with AM 001 through AM 045 or AM 048 through AM 054, replace the NLG specific components with new components (ii) Any MLG assembly, P/N 532.10.12.049 and P/N 532.10.12.050, with any S/N that starts with AM 001 thru AM 027, AM 029 through AM 045, AM 047 through AM 050, AM 052, or AM 053, replace the MLG specific components with new components (iii) Any MLG shock absorber assembly, P/N 532.10.12.175, with any S/N that starts with AM 001 through AM 017, AM 019, AM 021 through AM 063, AM 065 through AM 070, AM 072 through AM 074, AM 080, AM 084, AM 086, AM 089, AM 090, AM 093 through AM 096, AM 099, or AM 103 through AM 107, replace the MLG shock absorber specific components with new components (4) Do not install: ..................................................................................... (i) Any NLG assembly, P/N 532.20.12.038 and P/N 532.20.12.039, with any S/N that starts with AM 001 through AM 045 or AM 048 AD. through AM 054 (ii) Any MLG assembly, P/N 532.10.12.049 and P/N 532.10.12.050, with any S/N that starts with AM 001 thru AM 027, AM 029 through AM 045, AM 047 through AM 050, AM 052, or AM 053 Within the next 100 hours time-inservice (TIS) or 12 calendar months after the effective date of this AD, whichever occurs first, unless already done. No special procedures necessary to check the maintenance records. Within the next 100 hours time-inservice (TIS) or 12 calendar months after the effective date of this AD, whichever occurs first, unless already done. Follow Pilatus PC12 Service Bulletin No. 32–016, dated March 11, 2004. Before further flight after the inspection required by paragraph (e)(2) of this AD. Follow Pilatus PC12 Service Bulletin No. 32–016, dated March 11, 2004. As of the effective date of this AD Not Applicable. VerDate jul<14>2003 16:05 Aug 19, 2005 Jkt 205001 PO 00000 Frm 00019 Fmt 4702 Sfmt 4702 E:\FR\FM\22AUP1.SGM 22AUP1 48918 Federal Register / Vol. 70, No. 161 / Monday, August 22, 2005 / Proposed Rules Actions Compliance Procedures (iii) Any MLG shock absorber assembly, P/N 532.10.12.175, with any S/N that starts with AM 001 through AM 017, AM 019, AM 021 through AM 063, AM 065 through AM 070, AM 072 through AM 074, AM 080, AM 084, AM 086, AM 089, AM 090, AM 093 through AM 096, AM 099, or AM 103 through AM 107 Note 1: AD 2002–14–22, issued on July 8, 2002 (67 FR 46582), and AD 2004–06–05, issued on March 15, 2004 (69 FR 13712), are still applicable. Note 2: The FAA recommends that you send any removed parts or assemblies to Pilatus. BILLING CODE 4910–13–P May I Request an Alternative Method of Compliance? (f) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.19. Unless FAA authorizes otherwise, send your request to your principal inspector. The principal inspector may add comments and will send your request to the Manager, Standards Office, Small Airplane Directorate, FAA. For information on any already approved alternative methods of compliance, contact Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4059; facsimile: (816) 329–4090. Is There Other Information That Relates to This Subject? (g) Swiss AD Number HB–2005–168, dated May 3, 2005, also addresses the subject of this AD. May I Get Copies of the Documents Referenced in This AD? (h) To get copies of the documents referenced in this AD, contact Pilatus Aircraft Ltd., Customer Liaison Manager, CH–6371 Stans, Switzerland; telephone: +41 41 619 6208; facsimile: +41 41 619 7311; e-mail: SupportPC12@pilatus-aircraft.com or from Pilatus Business Aircraft Ltd., Product Support Department, 11755 Airport Way, Broomfield, Colorado 80021; telephone: (303) 465–9099; facsimile: (303) 465–6040. To view the AD docket, go to the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC, or on the Internet at https://dms.dot.gov. This is docket number FAA–2005–22018; Directorate Identifier 2005–CE–41–AD. VerDate jul<14>2003 16:05 Aug 19, 2005 Jkt 205001 Issued in Kansas City, Missouri, on August 16, 2005. Terry L. Chasteen, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–16528 Filed 8–19–05; 8:45 am] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–21951; Directorate Identifier 2005–CE–39–AD] RIN 2120–AA64 Airworthiness Directives; CENTRAIR 101 Series Gliders Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for all CENTRAIR 101 Series gliders. This proposed AD would require you to make pen and ink changes to the Limitations Section of the glider maintenance manual to eliminate contradictory information concerning the structural life limit. This proposed AD results from a review by FAA of the Limitations Section of the CENTRAIR Model 101AP glider maintenance manual that revealed conflicting information concerning the structural life limit. We are issuing this proposed AD to assure that the published life limit is adhered to and to prevent structural failure of the glider once this life limit is reached. DATES: We must receive any comments on this proposed AD by September 26, 2005. ADDRESSES: Use one of the following to submit comments on this proposed AD: • DOT Docket Web site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility; U.S. Department of Transportation, 400 PO 00000 Frm 00020 Fmt 4702 Sfmt 4702 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC 20590– 001. • Fax: 1–202–493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. To get the service information identified in this proposed AD, contact CENTRAIR, Aerodome B.P.N. 44, 36300 Le Blanc, France; telephone: 02.54.37.07.96; facsimile: 02.54.37.48.64. To view the comments to this proposed AD, go to https://dms.dot.gov. This is docket number FAA–2005– 21951; Directorate Identifier 2005–CE– 39–AD. FOR FURTHER INFORMATION CONTACT: Greg Davison, Aerospace Engineer, FAA, Small Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4130; facsimile: (816) 329–4090. SUPPLEMENTARY INFORMATION: Comments Invited How do I comment on this proposed AD? We invite you to submit any written relevant data, views, or arguments regarding this proposal. Send your comments to an address listed under ADDRESSES. Include the docket number, ‘‘FAA–2005–21951; Directorate Identifier 2005–CE–39–AD’’ at the beginning of your comments. We will post all comments we receive, without change, to https://dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed rulemaking. Using the search function of our docket Web site, anyone can find and read the comments received into any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). This is docket number FAA–2005–21951; Directorate Identifier 2005–CE–39–AD. You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78) or you may visit https://dms.dot.gov. E:\FR\FM\22AUP1.SGM 22AUP1

Agencies

[Federal Register Volume 70, Number 161 (Monday, August 22, 2005)]
[Proposed Rules]
[Pages 48914-48918]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-16528]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-22018; Directorate Identifier 2005-CE-41-AD]
RIN 2120-AA64

Airworthiness Directives; Pilatus Aircraft Ltd. Models PC-12 and
PC-12/45 Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Pilatus Aircraft Ltd. (Pilatus) Models PC-12 and PC-12/45
airplanes. This proposed AD would require you to determine (maintenance
records check and/or inspection) whether certain nose landing gear
(NLG), main landing gear (MLG), and MLG shock absorber assemblies with
a serial number beginning with ``AM'' are installed, and, if installed,
would require you to replace them with ones without the ``AM.'' This
proposed AD is the result of mandatory continuing airworthiness
information (MCAI) issued by the airworthiness authority for
Switzerland. We are issuing this proposed AD to detect and correct the
NLG, MLG, and MLG shock absorber assemblies that are affected by
hydrogen embrittlement, which could result in failure of the landing
gear. This failure could lead to nose or main landing gear collapse
during operation with consequent loss of airplane control.

DATES: We must receive any comments on this proposed AD by September
23, 2005.

ADDRESSES: Use one of the following to submit comments on this proposed
AD:
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
www.regulations.gov and follow the instructions for sending your
comments electronically.

[[Page 48915]]

Mail: Docket Management Facility; U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401,
Washington, DC 20590-001.
Fax: 1-202-493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
To get the service information identified in this proposed AD,
contact Pilatus Aircraft Ltd., Customer Liaison Manager, CH-6371 Stans,
Switzerland; telephone: +41 41 619 6208; facsimile: +41 41 619 7311; e-
mail: SupportPC12@pilatus-aircraft.com or from Pilatus Business
Aircraft Ltd., Product Support Department, 11755 Airport Way,
Broomfield, Colorado 80021; telephone: (303) 465-9099; facsimile: (303)
465-6040.
To view the comments to this proposed AD, go to https://dms.dot.gov.
This is docket number FAA-2005-22018; Directorate Identifier 2005-CE-
41-AD.

FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4059; facsimile: (816) 329-4090.

SUPPLEMENTARY INFORMATION:

Comments Invited

How do I comment on this proposed AD? We invite you to submit any
written relevant data, views, or arguments regarding this proposal.
Send your comments to an address listed under ADDRESSES. Include the
docket number, ``FAA-2005-22018; Directorate Identifier 2005-CE-41-AD''
at the beginning of your comments. We will post all comments we
receive, without change, to https://dms.dot.gov, including any personal
information you provide. We will also post a report summarizing each
substantive verbal contact with FAA personnel concerning this proposed
rulemaking. Using the search function of our docket Web site, anyone
can find and read the comments received into any of our dockets,
including the name of the individual who sent the comment (or signed
the comment on behalf of an association, business, labor union, etc.).
This is docket number FAA-2005-22018; Directorate Identifier 2005-CE-
41-AD. You may review the DOT's complete Privacy Act Statement in the
Federal Register published on April 11, 2000 (65 FR 19477-78) or you
may visit https://dms.dot.gov.
Are there any specific portions of this proposed AD I should pay
attention to? We specifically invite comments on the overall
regulatory, economic, environmental, and energy aspects of this
proposed AD. If you contact us through a nonwritten communication and
that contact relates to a substantive part of this proposed AD, we will
summarize the contact and place the summary in the docket. We will
consider all comments received by the closing date and may amend this
proposed AD in light of those comments and contacts.

Docket Information

Where can I go to view the docket information? You may view the AD
docket that contains the proposal, any comments received, and any final
disposition in person at the DMS Docket Offices between 9 a.m. and 5
p.m. (eastern time), Monday through Friday, except Federal holidays.
The Docket Office (telephone 1-800-647-5227) is located on the plaza
level of the Department of Transportation NASSIF Building at the street
address stated in ADDRESSES. You may also view the AD docket on the
Internet at https://dms.dot.gov. The comments will be available in the
AD docket shortly after the DMS receives them.

Discussion

What events have caused this proposed AD? The Federal Office for
Civil Aviation (FOCA), which is the airworthiness authority for
Switzerland, recently notified FAA that an unsafe condition may exist
on Pilatus Models PC-12 and PC-12/45 airplanes. The FOCA reports that
some components of the main landing gear (MLG), nose landing gear
(NLG), and MLG shock absorber assemblies have the potential to fail
during operation.
Investigations revealed that an improper cadmium plating process
applied to the high strength steel part causes the problem. This can
result in hydrogen embrittlement. Affected are only components that are
installed on MLG, NLG, and MLG shock absorber assemblies, with serial
numbers that start with the letters ``AM.'' Components in this
condition can experience a decreased fatigue life.
What is the potential impact if FAA took no action? Failure of the
nose or main landing gear could lead to nose or main landing gear
collapse during operation with consequent loss of airplane control.
Is there service information that applies to this subject? Pilatus
has issued Pilatus PC12 Service Bulletin No. 32-016, dated March 11,
2004.
What are the provisions of this service information? The service
bulletin includes procedures for:

--Checking to identify NLG, MLG, and MLG shock absorber assemblies with
serial numbers that start with the letters AM; and
--Replacing, if necessary, specified components in all NLG, MLG, and
MLG shock absorber assemblies which have serial numbers that start with
the letters AM.

What action did the FOCA take? The FOCA classified this service
bulletin as mandatory and issued Swiss AD Number HB-2005-168, dated May
3, 2005, to ensure the continued airworthiness of these airplanes in
Switzerland.
Did the FOCA inform the United States under the bilateral
airworthiness agreement? These Pilatus Models PC-12 and PC-12/45
airplanes are manufactured in Switzerland and are type-certificated for
operation in the United States under the provisions of section 21.29 of
the Federal Aviation Regulations (14 CFR 21.29) and the applicable
bilateral airworthiness agreement.
Under this bilateral airworthiness agreement, the FOCA has kept us
informed of the situation described above.

FAA's Determination and Requirements of This Proposed AD

What has FAA decided? We have examined the FOCA's findings,
reviewed all available information, and determined that AD action is
necessary for products of this type design that are certificated for
operation in the United States.
Since the unsafe condition described previously is likely to exist
or develop on other Pilatus Models PC-12 and PC-12/45 airplanes of the
same type design that are registered in the United States, we are
proposing AD action to detect and correct the NLG, MLG, and MLG shock
absorber assemblies that are affected by hydrogen embrittlement which
could result in failure of the landing gear. This failure could lead to
nose or main landing gear collapse during operation with consequent
loss of airplane control.
Even though the serial number effectivity of the FOCA AD and
Pilatus service bulletin only includes MSN 101 through MSN 471 and MSN
473 through MSN 482, FAA believes that, although the practice of
swapping of parts, components, and assemblies is rare, it is still
possible. Therefore, we are proposing that the effectivity include
Pilatus Models PC-12 and PC-12/45

[[Page 48916]]

airplanes with MSN 101 through MSN 625.
What would this proposed AD require? This proposed AD would require
you to determine (maintenance records check and/or inspection) whether
certain NLG, MLG, and MLG shock absorber assemblies with a serial
number beginning with ``AM'' are installed, and, if installed, would
require you to replace them with ones without the ``AM.''
How does the revision to 14 CFR part 39 affect this proposed AD? On
July 10, 2002, we published a new version of 14 CFR part 39 (67 FR
47997, July 22, 2002), which governs FAA's AD system. This regulation
now includes material that relates to altered products, special flight
permits, and alternative methods of compliance. This material
previously was included in each individual AD. Since this material is
included in 14 CFR part 39, we will not include it in future AD
actions.

Costs of Compliance

How many airplanes would this proposed AD impact? We estimate that
this proposed AD affects 350 airplanes in the U.S. registry.
What would be the cost impact of this proposed AD on owners/
operators of the affected airplanes? We estimate the following costs to
do the proposed check of the logbook to identify NLG, MLG, and MLG
shock absorber assemblies with serial numbers that start with the
letters AM:

----------------------------------------------------------------------------------------------------------------
Total cost per
Labor cost Parts cost airplane Total cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
1 work hour x $65 per hour = Not applicable............. $65. 350 x $65 = $22,750.
$65.
----------------------------------------------------------------------------------------------------------------

We estimate the following costs to do any necessary inspection and
replacement of all possible NLG, MLG, and MLG shock absorber assemblies
that would be required based on the results of this proposed check of
the logbook. We have no way of determining the number of airplanes that
may need this replacement:

------------------------------------------------------------------------
Total cost per
Labor cost Parts cost airplane
------------------------------------------------------------------------
41 work hours x $65 per hour $3,800 for the NLG $2,665 + $3,800 +
= $2,665. kit, $850 for the $850 + $2,600 =
MLG kit, and $2,600 $9,915.
for the MLG shock
absorber assembly
kit.
------------------------------------------------------------------------

Pilatus will provide warranty credit for replacing the specified
assemblies to the extent stated in the service information.

Authority for This Rulemaking

What authority does FAA have for issuing this rulemaking action?
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 AD.

Regulatory Findings

Would this proposed AD impact various entities? We have 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.
Would this proposed AD involve a significant rule or regulatory
action? For the reasons discussed above, I certify that this proposed
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); 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 summary of the costs to comply with this proposed AD
(and other information as included in the Regulatory Evaluation) and
placed it in the AD Docket. You may get a copy of this summary by
sending a request to us at the address listed under ADDRESSES. Include
``AD Docket FAA-2005-22018; Directorate Identifier 2005-CE-41-AD'' in
your request.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

Accordingly, under the authority delegated to me by the
Administrator, the Federal Aviation Administration 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.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new
airworthiness directive (AD):

Pilatus Aircraft Ltd.: Docket No. FAA-2005-22018; Directorate
Identifier 2005-CE-41-AD.

When Is the Last Date I Can Submit Comments on This Proposed AD?

(a) We must receive comments on this proposed airworthiness
directive (AD) by September 23, 2005.

What Other ADs Are Affected By This Action?

(b) None.

What Airplanes Are Affected by This AD?

(c) This AD affects Models PC-12 and PC-12/45 airplanes,
manufacturer serial numbers (MSN) 101 through MSN 625, that are
certificated in any category.

What Is the Unsafe Condition Presented in This AD?

(d) This AD is the result of mandatory continuing airworthiness
information (MCAI) issued by the airworthiness authority for
Switzerland. The actions specified in this AD are intended to detect
and correct the nose

[[Page 48917]]

landing gear (NLG), main landing gear (MLG), and MLG shock absorber
assemblies that are affected by hydrogen embrittlement, which could
result in failure of the landing gear. This failure could lead to
nose or main landing gear collapse during operation with consequent
loss of airplane control.

What Must I Do To Address This Problem?

(e) To address this problem, you must do the following:

------------------------------------------------------------------------
Actions Compliance Procedures
------------------------------------------------------------------------
(1) Maintenance Records Check:.. Within the next No special
(i) For MSN 101 through MSN 471 100 hours time-in- procedures
and MSN 473 through MSN 482: service (TIS) or necessary to
Check the maintenance records 12 calendar check the
to determine whether the months after the maintenance
following replacements have effective date of records.
been made:. this AD,
(A) Nose landing gear (NLG) whichever occurs
assemblies, part number (P/N) first, unless
532.20.12.038 and P/N already done.
532.20.12.039 with serial
numbers (S/N) AM 001 through AM
045 and AM 048 through AM 054;.
(B) Main landing gear (MLG)
assemblies, P/N 532.10.12.049
and P/N 532.10.12.050 with S/N
AM 001 thru AM 027, AM 029
through AM 045, AM 047 through
AM 050, AM 052, and AM 053; and.
(C) MLG shock absorber
assemblies, P/N 532.10.12.175,
with S/N AM 001 through AM 017,
AM 019, AM 021 through AM 063,
AM 065 through AM 070, AM 072
through AM 074, AM 080, AM 084,
AM 086, AM 089, AM 090, AM 093
through AM 096, AM 099, AM 103
through AM 107
(ii) For MSN 472 and MSN 483
through MSN 625: Verify that
the S/N parts identified in
paragraphs (e)(1)(i)(A),
(e)(1)(i)(B), and (e)(1)(i)(C)
of this AD have not been
installed
(iii) The owner/operator holding
at least a private pilot
certificate as authorized by
section 43.7 of the Federal
Aviation Regulations (14 CFR
43.7) may make this check. You
must make an entry into the
aircraft records that shows
compliance with this portion of
the AD in accordance with
section 43.9 of the Federal
Aviation Regulations (14 CFR
43.9)
(2) If you find as a result of Within the next Follow Pilatus
the check required by paragraph 100 hours time-in- PC12 Service
(e)(1)(i) of this AD that there service (TIS) or Bulletin No. 32-
is no record of the specified 12 calendar 016, dated March
assembly replacement, or as a months after the 11, 2004.
result of the check required by effective date of
paragraph (e)(1)(ii) of this AD this AD,
that parts have been installed whichever occurs
in the service, then inspect: first, unless
(i) The NLG assemblies, P/N already done.
532.20.12.038 and P/N
532.20.12.039, for any S/N that
starts with AM 001 through AM
045 and AM 048 through AM 054.
(ii) The MLG assemblies, P/N
532.10.12.049 and P/N
532.10.12.050, for any S/N that
starts with AM 001 thru AM 027,
AM 029 through AM 045, AM 047
through AM 050, AM 052, and AM
053.
(iii) The MLG shock absorber
assemblies, P/N 532.10.12.175,
for any S/N that starts with AM
001 through AM 017, AM 019, AM
021 through AM 063, AM 065
through AM 070, AM 072 through
AM 074, AM 080, AM 084, AM 086,
AM 089, AM 090, AM 093 through
AM 096, AM 099, and AM 103
through AM 107
(iv) You may choose to do the
inspection without doing the
maintenance records check
(3) If during the inspection Before further Follow Pilatus
required by paragraph (e)(2) of flight after the PC12 Service
this AD, you find:. inspection Bulletin No. 32-
(i) Any NLG assembly, P/N required by 016, dated March
532.20.12.038 and P/N paragraph (e)(2) 11, 2004.
532.20.12.039, with any S/N of this AD.
that starts with AM 001 through
AM 045 or AM 048 through AM
054, replace the NLG specific
components with new components.
(ii) Any MLG assembly, P/N
532.10.12.049 and P/N
532.10.12.050, with any S/N
that starts with AM 001 thru AM
027, AM 029 through AM 045, AM
047 through AM 050, AM 052, or
AM 053, replace the MLG
specific components with new
components.
(iii) Any MLG shock absorber
assembly, P/N 532.10.12.175,
with any S/N that starts with
AM 001 through AM 017, AM 019,
AM 021 through AM 063, AM 065
through AM 070, AM 072 through
AM 074, AM 080, AM 084, AM 086,
AM 089, AM 090, AM 093 through
AM 096, AM 099, or AM 103
through AM 107, replace the MLG
shock absorber specific
components with new components
(4) Do not install:............. As of the Not Applicable.
(i) Any NLG assembly, P/N effective date of
532.20.12.038 and P/N this AD.
532.20.12.039, with any S/N
that starts with AM 001 through
AM 045 or AM 048 AD. through AM
054.
(ii) Any MLG assembly, P/N
532.10.12.049 and P/N
532.10.12.050, with any S/N
that starts with AM 001 thru AM
027, AM 029 through AM 045, AM
047 through AM 050, AM 052, or
AM 053

[[Page 48918]]

(iii) Any MLG shock absorber
assembly, P/N 532.10.12.175,
with any S/N that starts with
AM 001 through AM 017, AM 019,
AM 021 through AM 063, AM 065
through AM 070, AM 072 through
AM 074, AM 080, AM 084, AM 086,
AM 089, AM 090, AM 093 through
AM 096, AM 099, or AM 103
through AM 107
------------------------------------------------------------------------

Note 1: AD 2002-14-22, issued on July 8, 2002 (67 FR 46582), and
AD 2004-06-05, issued on March 15, 2004 (69 FR 13712), are still
applicable.

Note 2: The FAA recommends that you send any removed parts or
assemblies to Pilatus.

May I Request an Alternative Method of Compliance?

(f) You may request a different method of compliance or a different
compliance time for this AD by following the procedures in 14 CFR
39.19. Unless FAA authorizes otherwise, send your request to your
principal inspector. The principal inspector may add comments and will
send your request to the Manager, Standards Office, Small Airplane
Directorate, FAA. For information on any already approved alternative
methods of compliance, contact Doug Rudolph, Aerospace Engineer, FAA,
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri
64106; telephone: (816) 329-4059; facsimile: (816) 329-4090.

Is There Other Information That Relates to This Subject?

(g) Swiss AD Number HB-2005-168, dated May 3, 2005, also addresses
the subject of this AD.

May I Get Copies of the Documents Referenced in This AD?

(h) To get copies of the documents referenced in this AD, contact
Pilatus Aircraft Ltd., Customer Liaison Manager, CH-6371 Stans,
Switzerland; telephone: +41 41 619 6208; facsimile: +41 41 619 7311; e-
mail: SupportPC12@pilatus-aircraft.com or from Pilatus Business
Aircraft Ltd., Product Support Department, 11755 Airport Way,
Broomfield, Colorado 80021; telephone: (303) 465-9099; facsimile: (303)
465-6040. To view the AD docket, go to the Docket Management Facility;
U.S. Department of Transportation, 400 Seventh Street, SW., Nassif
Building, Room PL-401, Washington, DC, or on the Internet at https://
dms.dot.gov. This is docket number FAA-2005-22018; Directorate
Identifier 2005-CE-41-AD.

Issued in Kansas City, Missouri, on August 16, 2005.
Terry L. Chasteen,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-16528 Filed 8-19-05; 8:45 am]
BILLING CODE 4910-13-P

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