Airworthiness Directives; M7 Aerospace LP Models SA226-AT, SA226-T, SA226-TC, SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A), SA227-CC, and SA227-DC (C-26B) Airplanes, 25390-25394 [E9-11989]

Download as PDF 25390 Federal Register / Vol. 74, No. 101 / Thursday, May 28, 2009 / Rules and Regulations reliability of the control itself, but rather determine the effects, including environmental effects addressed in § 23.1309(e), on the airplane systems and engine control system when installing the control on the airplane. When appropriate, engine certification data may be used when showing compliance with this requirement; however, the effects of the installation on this data must be addressed. For these evaluations, the loss of FADEC control will be analyzed utilizing the threat levels associated with a catastrophic failure. Issued in Kansas City, Missouri on May 20, 2009. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–12417 Filed 5–27–09; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2009–0119; Directorate Identifier 2008–CE–068–AD; Amendment 39–15916; AD 2009–11–06] RIN 2120–AA64 Airworthiness Directives; M7 Aerospace LP Models SA226–AT, SA226–T, SA226–TC, SA227–AC (C– 26A), SA227–AT, SA227–BC (C–26A), SA227–CC, and SA227–DC (C–26B) Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) to supersede AD 2008–12–16, which applies to certain M7 Aerospace LP SA226 and SA227 series airplanes. AD 2008–12–16 currently requires you to inspect wires and tube assemblies for chafing, arcing, or insufficient clearance between components. If chafing, arcing, or insufficient clearance between components is found, AD 2008–12–16 requires you to clear, repair, and/or replace all chafed wires, components, and tube assemblies. AD 2008–12–16 also requires you to cover the four-gauge wires leaving the battery box with firesleeving and secure them with a clamp. Since we issued AD 2008–12–16, VerDate Nov<24>2008 16:39 May 27, 2009 Jkt 217001 M7 Aerospace LP has notified us that Model SA227–BC (C–26A) was inadvertently left out of the Applicability section of the AD, and they updated some of the service information due to parts availability. Operators have also identified issues with model applicability that needed clarification. Consequently, this AD retains the actions of AD 2008–12–16, adds Model SA227–BC (C–26A) to the Applicability section, and regroups the models for clarification. We are issuing this AD to detect and correct chafing of electrical wires, components, and tube assemblies. This condition could result in arcing of exposed wires with consequent burning of a hole in a hydraulic line or the bleed air line. This failure could lead to a hydraulic fluid leak and a possible fire in the engine nacelle compartment. DATES: This AD becomes effective on July 2, 2009. On July 2, 2009, the Director of the Federal Register approved the incorporation by reference of certain publications listed in Table 2 of this AD. As of July 23, 2008 (73 FR 34615, June 18, 2008), the Director of the Federal Register approved the incorporation by reference of certain publications listed in Table 3 of this AD. ADDRESSES: For service information identified in this AD, contact M7 Aerospace Repair Station, 10823 NE Entrance Road, San Antonio, Texas 78216; telephone: (210) 824–9421; fax: (210) 804–7766; Internet: https:// www.m7aerospace.com. To view the AD docket, go to U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, or on the Internet at https:// www.regulations.gov. The docket number is FAA–2009–0119; Directorate Identifier 2008–CE–068–AD. FOR FURTHER INFORMATION CONTACT: Werner Koch, Aerospace Engineer, ASW–150, Fort Worth Airplane Certification Office, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone: (817) 222–5133; fax: (817) 222–5960. SUPPLEMENTARY INFORMATION: certain M7 Aerospace LP SA226 and SA227 series airplanes. This proposal was published in the Federal Register as a notice of proposed rulemaking (NPRM) on February 12, 2009 (74 FR 7006). The NPRM proposed to supersede AD 2008–12–16 with a new AD that would retain the actions of AD 2008–12–16, add the Model SA227–BC (C–26A) to the Applicability section, and regroup the models for clarification. Discussion Costs of Compliance On February 6, 2009, we issued a proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an AD that would apply to We estimate that this AD affects 268 airplanes in the U.S. registry. We estimate the following costs to do the inspection: PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 Comments We provided the public the opportunity to participate in developing this AD. The following presents the comment received on the proposal and FAA’s response: Comment Issue: Inspection Applicability George L. Smith commented that it was unclear if paragraph (e)(3) of the AD applied to airplanes with batteries mounted in the nose of the airplane or if the AD only applied to airplanes with the battery located in the wing leading edge. As specified in the Applicability section, this AD applies to all serial numbers regardless of where the battery is located. Therefore the actions required in paragraph (e)(3) of this AD apply to all airplanes listed in the Applicability section regardless of where the battery is located. For added clarity we are adding the applicable serial numbers to the paragraph. We are changing the final rule AD by adding the applicable serial numbers to each action based on this comment. Conclusion We have carefully reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed except for the change previously discussed and minor editorial corrections. We have determined that these minor corrections: • Are consistent with the intent that was proposed in the NPRM for correcting the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. E:\FR\FM\28MYR1.SGM 28MYR1 Federal Register / Vol. 74, No. 101 / Thursday, May 28, 2009 / Rules and Regulations 25391 Total cost per airplane Total cost on U.S. operators $320 $85,760 Labor cost Parts cost 4 work-hours × $80 per hour = $320 ........................................ Not Applicable .................................................. We estimate the following costs to do any necessary modifications for certain Models SA226–AT, SA226–T, SA226– TC, SA227–AC, and SA227–AT airplanes referenced in M7 Aerospace SA226 Series Service Bulletin 226–24– 019, revised: November 21, 2008; or M7 Aerospace SA227 Series Service Labor cost Bulletin 227–24–001, revised: November 21, 2008. We estimate 88 airplanes may need this modification: 13 work-hours × $80 per hour = $1,040 ..................................................................................... We estimate the following costs to do any necessary repairs for certain Models SA226–AT, SA226–TC, SA227–AC, and SA227–AT referenced in M7 Aerospace Total cost per airplane Parts cost SA226 Series Service Bulletin 226–24– 020, revised: August 4, 2008; or M7 Aerospace SA227 Series Service Bulletin 227–24–002, revised: Total cost on U.S. operators $1,047 $92,136 $7 November 21, 2008. We have no way of determining the number of airplanes that may need this repair: Labor cost Parts cost 50 work-hours × $80 per hour = $4,000 ................................................................................................................. 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 AD. We have 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; 16:39 May 27, 2009 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 Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: ■ Regulatory Findings VerDate Nov<24>2008 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 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 ‘‘Docket No. FAA–2009–0119; Directorate Identifier 2008–CE–068– AD’’ in your request. Jkt 217001 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] Frm 00005 Fmt 4700 $7,000 2008–12–16, Amendment 39–15560 (73 FR 34615, June 18, 2008), and adding the following new AD: 2009–11–06 M7 Aerospace LP: Amendment 39–15916; Docket No. FAA–2009–0119; Directorate Identifier 2008–CE–068–AD. Effective Date (a) This AD becomes effective on July 2, 2009. Affected ADs (b) This AD supersedes AD 2008–12–16, Amendment 39–15560. Applicability (c) This AD applies to Models SA226–AT, SA226–T, SA226–TC, SA227–AC (C–26A), SA227–AT, SA227–BC (C–26A), SA227–CC, and SA227–DC (C–26B) airplanes, all serial numbers, that are certificated in any category. Unsafe Condition (d) This AD results from five reports of chafing between the bleed air tube assembly and the electrical starter cables on M7 Aerospace LP SA226 and SA227 series airplanes with one incident resulting in a fire. We are issuing this AD to detect and correct chafing of electrical wires and components, hydraulic tube assemblies, and bleed air tube assemblies. This condition could result in arcing of the exposed wires with consequent burning of a hole in a hydraulic line or the bleed air line. This failure could lead to a possible hydraulic fluid leak and fire in the engine nacelle compartment. Compliance 2. The FAA amends § 39.13 by removing Airworthiness Directive (AD) ■ PO 00000 $3,000 Total cost per airplane Sfmt 4700 (e) To address this problem, you must do the following, unless already done: E:\FR\FM\28MYR1.SGM 28MYR1 25392 Federal Register / Vol. 74, No. 101 / Thursday, May 28, 2009 / Rules and Regulations TABLE 1—ACTIONS, COMPLIANCE, AND PROCEDURES Actions Compliance Procedures (1) For the following model and serial number (S/N) airplanes, inspect the main battery leads running forward from the battery compartment for deterioration, cover the fourgauge wires leaving the battery box with firesleeving, and secure them with a clamp: (i) SA226–AT, S/N AT–001 through AT– 419; (ii) SA226–T, S/N T–201 through T–248; (iii) SA226–TC, S/N TC–201 through TC– 419; (iv) SA227–AC (C–26A), S/N AC–420 through AC–539, AC–541, AC–543, AC– 544, AC–547 through AC–551; and (v) SA227–AT, S/N AT–423 through AT– 551. Within 250 hours time-in-service (TIS) after July 23, 2008 (the effective date of AD 2008–12–16). (2) For the following model and S/N airplanes, reroute the hydraulic tube assemblies in the right wing leading edge, reroute the battery cables and 22-gauge wire bundle, and install a new access panel forward of the battery box: (i) SA226–AT, S/N AT–001 through AT– 074; (ii) SA226–TC, S/N TC–201 through TC– 419; (iii) SA227–AC (C–26A), S/N AC–420 through AC–539, AC–541, AC–543, AC– 544, AC–547 through AC–550; and (iv) SA227–AT, S/N AT–423 through AT– 551. Before further flight after the modification required in paragraph (e)(1) of this AD and you were not able to obtain a minimum 0.50-inch clearance between the bleed air line and the tubing on the battery cables. (3) For model SA226–AT, SA226–T, SA226– TC, SA227–AC (C–26A), SA227–AT, SA227–CC, and SA227–DC (C–26B) airplanes, all S/N: Inspect electrical wires and components, hydraulic tube assemblies, and bleed air tube assemblies at the left hand and right hand (LH/RH) inboard wing leading edge/battery box areas, LH/RH wing stations 51.167 to 81.174, and at all feed-through locations into the LH/RH inboard keelson for any evidence of chafing or arcing. Within 250 hours TIS after July 23, 2008 (the effective date of AD 2008–12–16). Repetitively thereafter inspect at intervals not to exceed 12 months. (4) For model SA227–BC (C–26A) airplanes, all S/N: Inspect the main battery leads running forward from the battery compartment for any evidence of insulation deterioration. (5) For model SA227–BC (C–26A) airplanes, all S/N: Inspect electrical wires and components, hydraulic tube assemblies, and bleed air tube assemblies at LH/RH inboard wing leading edge/battery box areas, LH/RH wing stations 51.167 to 81.174, and at all feedthrough locations into the LH/RH inboard keelson for any evidence of insulation deterioration, chafing, or arcing. Within 250 hours TIS after July 2, 2009 (the effective date of this AD). Use the following service information as applicable: (A) For Models SA226–AT, SA226–T, and SA226–TC airplanes: Follow M7 Aerospace SA226 Series Service Bulletin No. 226–24–019, revised: November 21, 2008; or Fairchild Aircraft Corporation SA226 Series Service Bulletin No. SB 24–019, revised: May 17, 1983; or (B) For Models SA227–AC (C–26A) and SA227–AT airplanes: Follow M7 Aerospace SA227 Series Service Bulletin No. 227–24–001, revised: November 21, 2008; or Fairchild Aircraft Corporation SA227 Series Service Bulletin No. SB24–001, revised: May 17, 1983. Use the following service information as applicable: (A) For Models SA226–AT, and SA226– TC airplanes: Follow M7 Aerospace SA226 Series Service Bulletin No. 226–24–020, revised: August 4, 2008; or Fairchild Aircraft Corporation SA226 Series Service Bulletin No. SB 24–020, revised: February 15, 1984; or (B) For Models SA227–AC (C–26A) and SA227–AT, airplanes: Follow M7 Aerospace SA227 Series Service Bulletin No. 227–24–002, revised: November 21, 2008; or Fairchild Aircraft Corporation SA227 Series Service Bulletin No. SB24–002, revised: February 15, 1984. Use the following service information as applicable: (i) For Models SA226–AT, SA226–T, and SA226–TC airplanes: Follow M7 Aerospace SA226 Series Service Bulletin No. 226–24–036, revised November 21, 2008; or M7 Aerospace SA226 Series Service Bulletin No. 226–24–036, issued: September 19, 2007; (ii) For Models SA227–AC (C–26A) and SA227–AT, airplanes: Follow M7 Aerospace SA227 Series Service Bulletin No. 227–24–019, revised: November 21, 2008; or M7 Aerospace SA227 Series Service Bulletin No. 227–24–019, issued: September 19, 2007; or (iii) For Models SA227–CC and SA227–DC (C–26B) airplanes: Follow SA227 Series Commuter Category Service Bulletin No. CC7–24–010, revised November 21, 2008; or SA227 Series Commuter Category Service Bulletin No. CC7–24–010, issued September 19, 2007. Follow M7 Aerospace SA227 Series Service Bulletin No. 227–24–001, revised: November 21, 2008. VerDate Nov<24>2008 16:39 May 27, 2009 Jkt 217001 Within 250 hours TIS after July 2, 2009 (the effective date of this AD). Repetitively thereafter inspect at intervals not to exceed 12 months. PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 Follow M7 Aerospace SA227 Series Service Bulletin No. 227–24–019, revised: November 21, 2008. E:\FR\FM\28MYR1.SGM 28MYR1 Federal Register / Vol. 74, No. 101 / Thursday, May 28, 2009 / Rules and Regulations 25393 TABLE 1—ACTIONS, COMPLIANCE, AND PROCEDURES—Continued Actions Compliance Procedures (6) For all model and S/N airplanes: Clear, repair, and/or replace all electrical wires and components, hydraulic tube assemblies, and bleed air tube assemblies, in the inspection area and feed-through locations that show any sign of insulation deterioration, chafing, or arcing, as required. Before further flight after any inspection required in paragraphs (e)(1), (e)(3), (e)(4), and (e)(5) of this AD where any evidence of insulation deterioration, chafing, or arcing was found. Use the service information from paragraphs (e)(1), (e)(3), (e)(4), and (e)(5) of this AD, as applicable. Note: Although not a requirement of this AD, you may incorporate Swearingen Aviation Corporation SA226 Series Service Bulletin No. 57–010, revised: December 5, 1975, on those airplanes that have not installed the access panel. Installation of the access panel will simplify the incorporation of the service bulletins referenced in this AD and future inspections of the areas of concern. Alternative Methods of Compliance (AMOCs) appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO (f) The Manager, Fort Worth Airplane Certification 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: Werner Koch, Aerospace Engineer, ASW–150, Fort Worth Airplane Certification Office, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone: (817) 222–5133; fax: (817) 222–5960. Before using any approved AMOC on any airplane to which the AMOC applies, notify your Material Incorporated by Reference (g) You must use the service information specified in Table 2 or Table 3 of this AD 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 the service information listed in Table 2 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51. TABLE 2—MATERIAL INCORPORATED BY REFERENCE Service Bulletin No. Date (i) M7 Aerospace SA226 Series Service Bulletin No. 226–24–019 ...................................................................... (ii) M7 Aerospace SA226 Series Service Bulletin No. 226–24–020 ..................................................................... (iii) M7 Aerospace SA226 Series Service Bulletin No. 226–24–036 .................................................................... (iv) M7 Aerospace SA227 Series Service Bulletin No. 227–24–001 .................................................................... (v) M7 Aerospace SA227 Series Service Bulletin No. 227–24–002 ..................................................................... (vi) M7 Aerospace SA227 Series Service Bulletin No. 227–24–019 .................................................................... (vii) M7 Aerospace SA227 Series Commuter Category Service Bulletin No. CC7–24–010 ................................ (2) On July 23, 2008 (73 FR 34615, June 18, 2008), the Director of the Federal Register approved the incorporation by reference of Revised: Revised: Revised: Revised: Revised: Revised: Revised: November 21, 2008. August 4, 2008. November 21, 2008. November 21, 2008. November 21, 2008. November 21, 2008. November 21, 2008. the service information listed in Table 3 of this AD. TABLE 3—PREVIOUS MATERIAL INCORPORATED BY REFERENCE Service Bulletin No. Date (i) Fairchild Aircraft Corporation SA226 Series Service Bulletin No. SB 24–019 ................................................. (ii) Fairchild Aircraft Corporation SA226 Series Service Bulletin No. SB 24–020 ................................................ (iii) M7 Aerospace SA226 Series Service Bulletin No. 226–24–036 .................................................................... (iv) Fairchild Aircraft Corporation SA227 Series Service Bulletin No. SB24–001 ................................................ (v) Fairchild Aircraft Corporation SA227 Series Service Bulletin No. SB24–002 ................................................. (vi) M7 Aerospace SA227 Series Service Bulletin No. 227–24–019 .................................................................... (vii) M7 Aerospace SA227 Series Commuter Category Service Bulletin No. CC7–24–010 ................................ VerDate Nov<24>2008 16:39 May 27, 2009 Jkt 217001 PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 E:\FR\FM\28MYR1.SGM Revised: May 17, 1983. Revised: February 15, 1984. Issued: September 19, 2007. Revised: May 17, 1983. Revised: February 15, 1984. Issued: September 19, 2007. Issued: September 19, 2007. 28MYR1 25394 Federal Register / Vol. 74, No. 101 / Thursday, May 28, 2009 / Rules and Regulations (3) For service information identified in this AD, contact M7 Aerospace Repair Station, 10823 NE Entrance Road, San Antonio, Texas 78216; telephone: (210) 824– 9421; fax: (210) 804–7766; Internet: https:// www.m7aerospace.com. (4) You may review copies of the service information incorporated by reference for this AD at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the Central Region, call (816) 329–3768. (5) 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: https://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Kansas City, Missouri, on May 18, 2009. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–11989 Filed 5–27–09; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2009–0482; Directorate Identifier 2008–SW–54–AD; Amendment 39– 15920; AD 2009–11–10] RIN 2120–AA64 Airworthiness Directives; Eurocopter Deutschland GmbH Model EC135 Helicopters AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. SUMMARY: We are adopting a new airworthiness directive (AD) for Eurocopter Deutschland GmbH (Eurocopter) Model EC135 helicopters. This AD results from a report of abnormal main rotor blade vibrations on a Eurocopter Model EC135 helicopter. This AD also results from mandatory continuing airworthiness information (MCAI) issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI states that an operator reported unusual vibrations during the start phase of the main rotor blade on one helicopter. The vibrations stopped after the application of torque. Subsequent maintenance personnel found that six of the eight VerDate Nov<24>2008 16:39 May 27, 2009 Jkt 217001 attachment screws of the lower hubshaft bearing support were loose. This condition was discovered in two additional helicopters. Loose screws in the bearing support, if not detected and corrected, could result in abnormal main rotor blade vibrations and subsequent damage to the main transmission. DATES: This AD becomes effective on June 12, 2009. The incorporation by reference of certain publications is approved by the Director of the Federal Register as of June 12, 2009. We must receive comments on this AD by July 27, 2009. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting your comments electronically. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. You may get the service information identified in this AD from American Eurocopter Corporation, 2701 Forum Drive, Grand Prairie, TX 75053–4005, telephone (972) 641–3460, fax (972) 641–3527, or at https:// www.eurocopter.com. Examining the Docket: You may examine the AD docket on the Internet at https://www.regulations.gov or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the economic evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is stated in the ADDRESSES section of this AD. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Chinh Vuong, Aviation Safety Engineer, FAA, Rotorcraft Directorate, Safety Management Group, Fort Worth, Texas 76193–0111, telephone (817) 222–5116, fax (817) 222–5961. SUPPLEMENTARY INFORMATION: Discussion We recently received a report of abnormal main rotor blade vibration on PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 a Eurocopter Model EC135 helicopter. This main rotor blade vibration occurred after initial aircraft start, while operating at flat pitch, between 8.5 and 25 percent torque and 98.6 percent NR/ N2 speed, and dissipated once the FADEC switches were advanced to FLIGHT. The main rotor transmission chip light also illuminated with minimal debris found on the chip detectors. During troubleshooting, six of the eight main transmission lower hubshaft bearing support bolts were found lying in the bottom of the main transmission case, atop of the lower transmission access panel. Only two of the eight bolts remained installed, loose in their positions, and the outer race of the roller bearing was rotated out of position (cocked). Approximately three weeks after that first incident, we received a report that loose bolts were discovered on two additional newer helicopters that had not been inspected at the time the loose bolts were discovered on the first helicopter. Subsequent investigations revealed that screws were not properly torqued and vibrations had caused the screws to back-out. Loosened screws in the bearing support, if not detected and corrected, could result in abnormal main rotor blade vibrations and subsequent damage to the main transmission. EASA has issued EASA Emergency AD 2008–0175–E, dated September 16, 2008, to correct an unsafe condition for the Eurocopter Model EC135 helicopters. The MCAI explains that ‘‘The lower hub-shaft bearing consists of a ball bearing and a roller bearing. The outer race of the roller bearing is fixed to the housing with screws. Should all attachment screws become loose, the outer race of the roller bearing might separate, which would constitute an unsafe condition. In such case, however, the axial guidance of the rotor hub-shaft would still be ensured.’’ The MCAI requires inspecting the main transmission attachment hardware and installing locking washers. You may obtain further information by examining the MCAI and any related service information in the AD docket. Related Service Information Eurocopter has issued Alert Service Bulletin EC135–63A–013, Revision 2, dated September 12, 2008 (ASB). The ASB specifies checking the screws at the lower hub-shaft bearing for correct attachment and securing attachment hardware by means of locking washers. The actions described in the MCAI are intended to correct the same unsafe condition as that identified in the service information. E:\FR\FM\28MYR1.SGM 28MYR1

Agencies

[Federal Register Volume 74, Number 101 (Thursday, May 28, 2009)]
[Rules and Regulations]
[Pages 25390-25394]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-11989]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0119; Directorate Identifier 2008-CE-068-AD; 
Amendment 39-15916; AD 2009-11-06]
RIN 2120-AA64


Airworthiness Directives; M7 Aerospace LP Models SA226-AT, SA226-
T, SA226-TC, SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A), SA227-CC, 
and SA227-DC (C-26B) Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) to 
supersede AD 2008-12-16, which applies to certain M7 Aerospace LP SA226 
and SA227 series airplanes. AD 2008-12-16 currently requires you to 
inspect wires and tube assemblies for chafing, arcing, or insufficient 
clearance between components. If chafing, arcing, or insufficient 
clearance between components is found, AD 2008-12-16 requires you to 
clear, repair, and/or replace all chafed wires, components, and tube 
assemblies. AD 2008-12-16 also requires you to cover the four-gauge 
wires leaving the battery box with firesleeving and secure them with a 
clamp. Since we issued AD 2008-12-16, M7 Aerospace LP has notified us 
that Model SA227-BC (C-26A) was inadvertently left out of the 
Applicability section of the AD, and they updated some of the service 
information due to parts availability. Operators have also identified 
issues with model applicability that needed clarification. 
Consequently, this AD retains the actions of AD 2008-12-16, adds Model 
SA227-BC (C-26A) to the Applicability section, and regroups the models 
for clarification. We are issuing this AD to detect and correct chafing 
of electrical wires, components, and tube assemblies. This condition 
could result in arcing of exposed wires with consequent burning of a 
hole in a hydraulic line or the bleed air line. This failure could lead 
to a hydraulic fluid leak and a possible fire in the engine nacelle 
compartment.

DATES: This AD becomes effective on July 2, 2009.
    On July 2, 2009, the Director of the Federal Register approved the 
incorporation by reference of certain publications listed in Table 2 of 
this AD.
    As of July 23, 2008 (73 FR 34615, June 18, 2008), the Director of 
the Federal Register approved the incorporation by reference of certain 
publications listed in Table 3 of this AD.

ADDRESSES: For service information identified in this AD, contact M7 
Aerospace Repair Station, 10823 NE Entrance Road, San Antonio, Texas 
78216; telephone: (210) 824-9421; fax: (210) 804-7766; Internet: https://www.m7aerospace.com.
    To view the AD docket, go to U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue, SE., Washington, DC 20590, or on the Internet at 
https://www.regulations.gov. The docket number is FAA-2009-0119; 
Directorate Identifier 2008-CE-068-AD.

FOR FURTHER INFORMATION CONTACT: Werner Koch, Aerospace Engineer, ASW-
150, Fort Worth Airplane Certification Office, 2601 Meacham Blvd., Fort 
Worth, Texas 76137; telephone: (817) 222-5133; fax: (817) 222-5960.

SUPPLEMENTARY INFORMATION: 

Discussion

    On February 6, 2009, we issued a proposal to amend part 39 of the 
Federal Aviation Regulations (14 CFR part 39) to include an AD that 
would apply to certain M7 Aerospace LP SA226 and SA227 series 
airplanes. This proposal was published in the Federal Register as a 
notice of proposed rulemaking (NPRM) on February 12, 2009 (74 FR 7006). 
The NPRM proposed to supersede AD 2008-12-16 with a new AD that would 
retain the actions of AD 2008-12-16, add the Model SA227-BC (C-26A) to 
the Applicability section, and regroup the models for clarification.

Comments

    We provided the public the opportunity to participate in developing 
this AD. The following presents the comment received on the proposal 
and FAA's response:

Comment Issue: Inspection Applicability

    George L. Smith commented that it was unclear if paragraph (e)(3) 
of the AD applied to airplanes with batteries mounted in the nose of 
the airplane or if the AD only applied to airplanes with the battery 
located in the wing leading edge.
    As specified in the Applicability section, this AD applies to all 
serial numbers regardless of where the battery is located. Therefore 
the actions required in paragraph (e)(3) of this AD apply to all 
airplanes listed in the Applicability section regardless of where the 
battery is located. For added clarity we are adding the applicable 
serial numbers to the paragraph.
    We are changing the final rule AD by adding the applicable serial 
numbers to each action based on this comment.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed 
except for the change previously discussed and minor editorial 
corrections. We have determined that these minor corrections:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Costs of Compliance

    We estimate that this AD affects 268 airplanes in the U.S. 
registry.
    We estimate the following costs to do the inspection:

[[Page 25391]]



----------------------------------------------------------------------------------------------------------------
                                                                                  Total cost per   Total cost on
                  Labor cost                               Parts cost                airplane     U.S. operators
----------------------------------------------------------------------------------------------------------------
4 work-hours x $80 per hour = $320............  Not Applicable..................            $320         $85,760
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary modifications 
for certain Models SA226-AT, SA226-T, SA226-TC, SA227-AC, and SA227-AT 
airplanes referenced in M7 Aerospace SA226 Series Service Bulletin 226-
24-019, revised: November 21, 2008; or M7 Aerospace SA227 Series 
Service Bulletin 227-24-001, revised: November 21, 2008. We estimate 88 
airplanes may need this modification:

----------------------------------------------------------------------------------------------------------------
                                                                                  Total cost per   Total cost on
                           Labor cost                               Parts cost       airplane     U.S. operators
----------------------------------------------------------------------------------------------------------------
13 work-hours x $80 per hour = $1,040...........................              $7          $1,047         $92,136
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary repairs for 
certain Models SA226-AT, SA226-TC, SA227-AC, and SA227-AT referenced in 
M7 Aerospace SA226 Series Service Bulletin 226-24-020, revised: August 
4, 2008; or M7 Aerospace SA227 Series Service Bulletin 227-24-002, 
revised: November 21, 2008. We have no way of determining the number of 
airplanes that may need this repair:

------------------------------------------------------------------------
                                                          Total cost per
               Labor cost                   Parts cost       airplane
------------------------------------------------------------------------
50 work-hours x $80 per hour = $4,000...          $3,000          $7,000
------------------------------------------------------------------------

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 AD.

Regulatory Findings

    We have 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 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 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 ``Docket 
No. FAA-2009-0119; Directorate Identifier 2008-CE-068-AD'' in your 
request.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration amends part 39 of the Federal 
Aviation Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
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]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2008-12-16, Amendment 39-15560 (73 FR 34615, June 18, 2008), and adding 
the following new AD:

2009-11-06 M7 Aerospace LP: Amendment 39-15916; Docket No. FAA-2009-
0119; Directorate Identifier 2008-CE-068-AD.

Effective Date

    (a) This AD becomes effective on July 2, 2009.

Affected ADs

    (b) This AD supersedes AD 2008-12-16, Amendment 39-15560.

Applicability

    (c) This AD applies to Models SA226-AT, SA226-T, SA226-TC, 
SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A), SA227-CC, and SA227-DC 
(C-26B) airplanes, all serial numbers, that are certificated in any 
category.

Unsafe Condition

    (d) This AD results from five reports of chafing between the 
bleed air tube assembly and the electrical starter cables on M7 
Aerospace LP SA226 and SA227 series airplanes with one incident 
resulting in a fire. We are issuing this AD to detect and correct 
chafing of electrical wires and components, hydraulic tube 
assemblies, and bleed air tube assemblies. This condition could 
result in arcing of the exposed wires with consequent burning of a 
hole in a hydraulic line or the bleed air line. This failure could 
lead to a possible hydraulic fluid leak and fire in the engine 
nacelle compartment.

Compliance

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

[[Page 25392]]



                                  Table 1--Actions, Compliance, and Procedures
----------------------------------------------------------------------------------------------------------------
               Actions                             Compliance                            Procedures
----------------------------------------------------------------------------------------------------------------
(1) For the following model and       Within 250 hours time-in-service      Use the following service
 serial number (S/N) airplanes,        (TIS) after July 23, 2008 (the        information as applicable:
 inspect the main battery leads        effective date of AD 2008-12-16).    (A) For Models SA226-AT, SA226-T,
 running forward from the battery                                            and SA226-TC airplanes: Follow M7
 compartment for deterioration,                                              Aerospace SA226 Series Service
 cover the four-gauge wires leaving                                          Bulletin No. 226-24-019, revised:
 the battery box with firesleeving,                                          November 21, 2008; or Fairchild
 and secure them with a clamp:                                               Aircraft Corporation SA226 Series
(i) SA226-AT, S/N AT-001 through AT-                                         Service Bulletin No. SB 24-019,
 419;                                                                        revised: May 17, 1983; or
(ii) SA226-T, S/N T-201 through T-                                          (B) For Models SA227-AC (C-26A) and
 248;                                                                        SA227-AT airplanes: Follow M7
(iii) SA226-TC, S/N TC-201 through                                           Aerospace SA227 Series Service
 TC-419;                                                                     Bulletin No. 227-24-001, revised:
(iv) SA227-AC (C-26A), S/N AC-420                                            November 21, 2008; or Fairchild
 through AC-539, AC-541, AC-543, AC-                                         Aircraft Corporation SA227 Series
 544, AC-547 through AC-551; and                                             Service Bulletin No. SB24-001,
(v) SA227-AT, S/N AT-423 through AT-                                         revised: May 17, 1983.
 551.
(2) For the following model and S/N   Before further flight after the       Use the following service
 airplanes, reroute the hydraulic      modification required in paragraph    information as applicable:
 tube assemblies in the right wing     (e)(1) of this AD and you were not   (A) For Models SA226-AT, and SA226-
 leading edge, reroute the battery     able to obtain a minimum 0.50-inch    TC airplanes: Follow M7 Aerospace
 cables and 22-gauge wire bundle,      clearance between the bleed air       SA226 Series Service Bulletin No.
 and install a new access panel        line and the tubing on the battery    226-24-020, revised: August 4,
 forward of the battery box:           cables.                               2008; or Fairchild Aircraft
(i) SA226-AT, S/N AT-001 through AT-                                         Corporation SA226 Series Service
 074;                                                                        Bulletin No. SB 24-020, revised:
(ii) SA226-TC, S/N TC-201 through TC-                                        February 15, 1984; or
 419;                                                                       (B) For Models SA227-AC (C-26A) and
(iii) SA227-AC (C-26A), S/N AC-420                                           SA227-AT, airplanes: Follow M7
 through AC-539, AC-541, AC-543, AC-                                         Aerospace SA227 Series Service
 544, AC-547 through AC-550; and                                             Bulletin No. 227-24-002, revised:
(iv) SA227-AT, S/N AT-423 through AT-                                        November 21, 2008; or Fairchild
 551.                                                                        Aircraft Corporation SA227 Series
                                                                             Service Bulletin No. SB24-002,
                                                                             revised: February 15, 1984.
(3) For model SA226-AT, SA226-T,      Within 250 hours TIS after July 23,   Use the following service
 SA226-TC, SA227-AC (C-26A), SA227-    2008 (the effective date of AD 2008-  information as applicable:
 AT, SA227-CC, and SA227-DC (C-26B)    12-16). Repetitively thereafter      (i) For Models SA226-AT, SA226-T,
 airplanes, all S/N: Inspect           inspect at intervals not to exceed    and SA226-TC airplanes: Follow M7
 electrical wires and components,      12 months.                            Aerospace SA226 Series Service
 hydraulic tube assemblies, and                                              Bulletin No. 226-24-036, revised
 bleed air tube assemblies at the                                            November 21, 2008; or M7 Aerospace
 left hand and right hand (LH/RH)                                            SA226 Series Service Bulletin No.
 inboard wing leading edge/battery                                           226-24-036, issued: September 19,
 box areas, LH/RH wing stations                                              2007;
 51.167 to 81.174, and at all feed-                                         (ii) For Models SA227-AC (C-26A) and
 through locations into the LH/RH                                            SA227-AT, airplanes: Follow M7
 inboard keelson for any evidence of                                         Aerospace SA227 Series Service
 chafing or arcing.                                                          Bulletin No. 227-24-019, revised:
                                                                             November 21, 2008; or M7 Aerospace
                                                                             SA227 Series Service Bulletin No.
                                                                             227-24-019, issued: September 19,
                                                                             2007; or
                                                                            (iii) For Models SA227-CC and SA227-
                                                                             DC (C-26B) airplanes: Follow SA227
                                                                             Series Commuter Category Service
                                                                             Bulletin No. CC7-24-010, revised
                                                                             November 21, 2008; or SA227 Series
                                                                             Commuter Category Service Bulletin
                                                                             No. CC7-24-010, issued September
                                                                             19, 2007.
(4) For model SA227-BC (C-26A)        Within 250 hours TIS after July 2,    Follow M7 Aerospace SA227 Series
 airplanes, all S/N: Inspect the       2009 (the effective date of this      Service Bulletin No. 227-24-001,
 main battery leads running forward    AD).                                  revised: November 21, 2008.
 from the battery compartment for
 any evidence of insulation
 deterioration.
(5) For model SA227-BC (C-26A)        Within 250 hours TIS after July 2,    Follow M7 Aerospace SA227 Series
 airplanes, all S/N: Inspect           2009 (the effective date of this      Service Bulletin No. 227-24-019,
 electrical wires and components,      AD). Repetitively thereafter          revised: November 21, 2008.
 hydraulic tube assemblies, and        inspect at intervals not to exceed
 bleed air tube assemblies at LH/RH    12 months.
 inboard wing leading edge/battery
 box areas, LH/RH wing stations
 51.167 to 81.174, and at all feed-
 through locations into the LH/RH
 inboard keelson for any evidence of
 insulation deterioration, chafing,
 or arcing.

[[Page 25393]]

 
(6) For all model and S/N airplanes:  Before further flight after any       Use the service information from
 Clear, repair, and/or replace all     inspection required in paragraphs     paragraphs (e)(1), (e)(3), (e)(4),
 electrical wires and components,      (e)(1), (e)(3), (e)(4), and (e)(5)    and (e)(5) of this AD, as
 hydraulic tube assemblies, and        of this AD where any evidence of      applicable.
 bleed air tube assemblies, in the     insulation deterioration, chafing,
 inspection area and feed-through      or arcing was found.
 locations that show any sign of
 insulation deterioration, chafing,
 or arcing, as required.
----------------------------------------------------------------------------------------------------------------


    Note: Although not a requirement of this AD, you may incorporate 
Swearingen Aviation Corporation SA226 Series Service Bulletin No. 
57-010, revised: December 5, 1975, on those airplanes that have not 
installed the access panel. Installation of the access panel will 
simplify the incorporation of the service bulletins referenced in 
this AD and future inspections of the areas of concern.

Alternative Methods of Compliance (AMOCs)

    (f) The Manager, Fort Worth Airplane Certification 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: 
Werner Koch, Aerospace Engineer, ASW-150, Fort Worth Airplane 
Certification Office, 2601 Meacham Blvd., Fort Worth, Texas 76137; 
telephone: (817) 222-5133; fax: (817) 222-5960. 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

Material Incorporated by Reference

    (g) You must use the service information specified in Table 2 or 
Table 3 of this AD 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 the service information listed in 
Table 2 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51.

               Table 2--Material Incorporated by Reference
------------------------------------------------------------------------
     Service Bulletin No.                         Date
------------------------------------------------------------------------
(i) M7 Aerospace SA226 Series   Revised: November 21, 2008.
 Service Bulletin No. 226-24-
 019.
(ii) M7 Aerospace SA226 Series  Revised: August 4, 2008.
 Service Bulletin No. 226-24-
 020.
(iii) M7 Aerospace SA226        Revised: November 21, 2008.
 Series Service Bulletin No.
 226-24-036.
(iv) M7 Aerospace SA227 Series  Revised: November 21, 2008.
 Service Bulletin No. 227-24-
 001.
(v) M7 Aerospace SA227 Series   Revised: November 21, 2008.
 Service Bulletin No. 227-24-
 002.
(vi) M7 Aerospace SA227 Series  Revised: November 21, 2008.
 Service Bulletin No. 227-24-
 019.
(vii) M7 Aerospace SA227        Revised: November 21, 2008.
 Series Commuter Category
 Service Bulletin No. CC7-24-
 010.
------------------------------------------------------------------------

    (2) On July 23, 2008 (73 FR 34615, June 18, 2008), the Director 
of the Federal Register approved the incorporation by reference of 
the service information listed in Table 3 of this AD.

          Table 3--Previous Material Incorporated by Reference
------------------------------------------------------------------------
     Service Bulletin No.                         Date
------------------------------------------------------------------------
(i) Fairchild Aircraft          Revised: May 17, 1983.
 Corporation SA226 Series
 Service Bulletin No. SB 24-
 019.
(ii) Fairchild Aircraft         Revised: February 15, 1984.
 Corporation SA226 Series
 Service Bulletin No. SB 24-
 020.
(iii) M7 Aerospace SA226        Issued: September 19, 2007.
 Series Service Bulletin No.
 226-24-036.
(iv) Fairchild Aircraft         Revised: May 17, 1983.
 Corporation SA227 Series
 Service Bulletin No. SB24-001.
(v) Fairchild Aircraft          Revised: February 15, 1984.
 Corporation SA227 Series
 Service Bulletin No. SB24-002.
(vi) M7 Aerospace SA227 Series  Issued: September 19, 2007.
 Service Bulletin No. 227-24-
 019.
(vii) M7 Aerospace SA227        Issued: September 19, 2007.
 Series Commuter Category
 Service Bulletin No. CC7-24-
 010.
------------------------------------------------------------------------


[[Page 25394]]

    (3) For service information identified in this AD, contact M7 
Aerospace Repair Station, 10823 NE Entrance Road, San Antonio, Texas 
78216; telephone: (210) 824-9421; fax: (210) 804-7766; Internet: 
https://www.m7aerospace.com.
    (4) You may review copies of the service information 
incorporated by reference for this AD at the FAA, Central Region, 
Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 
64106. For information on the availability of this material at the 
Central Region, call (816) 329-3768.
    (5) 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: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Kansas City, Missouri, on May 18, 2009.
Kim Smith,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. E9-11989 Filed 5-27-09; 8:45 am]
BILLING CODE 4910-13-P
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