Airworthiness Directives; Various Restricted Category Helicopters, 56528-56533 [2012-22564]

Download as PDF 56528 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704. mstockstill on DSK4VPTVN1PROD with RULES The Special Conditions Accordingly, pursuant to the authority delegated to me by the Administrator, the following special conditions are issued as part of the type certification basis for Bombardier Model CL–600–2B16 (CL–601–3A, CL–601–3R, and CL–604 variants) airplanes modified by Atlantic Aero, Inc. 1. Enhanced flight vision system (EFVS) imagery on the head-up display (HUD) must not degrade the safety of flight or interfere with the effective use of outside visual references for required pilot tasks during any phase of flight in which it is to be used. 2. To avoid unacceptable interference with the safe and effective use of the pilot compartment view, the EFVS device must meet the following requirements: a. The EFVS design must minimize unacceptable display characteristics or artifacts (e.g., noise, ‘‘burlap’’ overlay, running water droplets) that obscure the desired image of the scene, impair the pilot’s ability to detect and identify visual references, mask flight hazards, distract the pilot, or otherwise degrade task performance or safety. b. Automatic control of EFVS display brightness must be sufficiently effective, in dynamically changing background (ambient) lighting conditions, to prevent full or partial blooming of the display that would distract the pilot, impair the pilot’s ability to detect and identify visual references, mask flight hazards, or otherwise degrade task performance or safety. If automatic control for image brightness is not provided, it must be shown that a single manual setting is satisfactory for the range of lighting conditions encountered during a timecritical, high-workload phase of flight (e.g., low visibility instrument approach). c. A readily accessible control must be provided that permits the pilot to immediately deactivate and reactivate display of the EFVS image on demand without removing the pilot’s hands from the primary flight controls (yoke or equivalent) or thrust control. d. The EFVS image on the HUD must not impair the pilot’s use of guidance information, or degrade the presentation and pilot awareness of essential flight information displayed on the HUD, such as alerts, airspeed, attitude, altitude and direction, approach guidance, windshear guidance, traffic alert and collision avoidance system (TCAS) resolution advisories, or unusual attitude recovery cues. VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 e. The EFVS image and the HUD symbols, which are spatially referenced to the pitch scale, outside view and image, must be scaled and aligned (i.e., conformal) to the external scene. In addition, the EFVS image and the HUD symbols, when considered singly or in combination, must not be misleading, cause pilot confusion, or increase workload. Airplane attitudes or crosswind conditions may cause certain symbols (e.g., the zero-pitch line or flight path vector) to reach field-of-view limits such that they cannot be positioned conformably with the image and external scene. In such cases, these symbols may be displayed but with an altered appearance, which makes the pilot aware that they are no longer displayed conformably (for example, ‘‘ghosting’’). f. A HUD system used to display EFVS images must, if previously certified, continue to meet all of the requirements of the original approval. 3. The safety and performance of the pilot tasks associated with the use of the pilot compartment view must not be degraded by the display of the EFVS image. Pilot tasks that must not be degraded by the EFVS image include: a. Detection, accurate identification, and maneuvering, as necessary, to avoid traffic, terrain, obstacles, and other hazards of flight. b. Accurate identification and utilization of visual references required for every task relevant to the phase of flight. Use of EFVS for instrument approach operations must be in accordance with the provisions of § 91.175(l) and (m) and § 121.651 where applicable. Appropriate limitations must be stated in the operating limitations section of the airplane flight manual to prohibit the use of the EFVS for functions that have not been found to be acceptable. Issued in Renton, Washington, on September 6, 2012. Ali Bahrami Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2012–22468 Filed 9–12–12; 8:45 am] BILLING CODE 4910–13–P PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–0896; Directorate Identifier 2010–SW–070–AD; Amendment 39–17173; AD 2012–17–10] RIN 2120–AA64 Airworthiness Directives; Various Restricted Category Helicopters Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. AGENCY: We are adopting a new airworthiness directive (AD) for various restricted category Model HH–1K, TH– 1F, TH–1L, UH–1A, UH–1B, UH–1E, UH–1F, UH–1H, UH–1L, and UH–1P helicopters with certain main rotor (M/ R) blade assemblies installed, to require inspecting the grip plates, doublers, and upper and lower surfaces of the M/R blades in the area between blade stations 24.5 and 40 for an edge void, corrosion, or a crack. This AD is prompted by several reports of fatigue cracks on M/R blades installed on Bell Helicopter Textron, Inc. (Bell) Model 212 helicopters. These same partnumbered M/R blades may also be installed on certain FAA-approved modified restricted category helicopters. These actions are intended to detect an edge void, corrosion, or a crack on an M/R blade, which could lead to loss of the M/R blade and subsequent loss of control of the helicopter. DATES: This AD becomes effective September 28, 2012. We must receive comments on this AD by November 13, 2012. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your comments electronically. • Fax: 202–493–2251. • Mail: Send comments to the U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590–0001. • Hand Delivery: Deliver to the ‘‘Mail’’ address between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Examining the AD Docket: You may examine the AD docket on the Internet at http://www.regulations.gov or in person at the Docket Operations Office SUMMARY: E:\FR\FM\13SER1.SGM 13SER1 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations 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 in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. For service information identified in this AD, contact Bell Helicopter Textron, Inc., P.O. Box 482, Fort Worth, TX 76101; telephone (817) 280–3391; fax (817) 280–6466; or at http:// www.bellcustomer.com/files/. You may review a copy of the referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. FOR FURTHER INFORMATION CONTACT: Michael Kohner, Aviation Safety Engineer, Rotorcraft Certification Office, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, TX 76137; telephone (817) 222–5170; email 7-avsasw-170@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited mstockstill on DSK4VPTVN1PROD with RULES This AD is a final rule that involves requirements affecting flight safety, and we did not provide you with notice and an opportunity to provide your comments prior to it becoming effective. However, we invite you to participate in this rulemaking by submitting written comments, data, or views. We also invite comments relating to the economic, environmental, energy, or federalism impacts that resulted from adopting this AD. The most helpful comments reference a specific portion of the AD, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should send only one copy of written comments, or if comments are filed electronically, commenters should submit them only one time. We will file in the docket all comments that we receive, as well as a report summarizing each substantive public contact with FAA personnel concerning this rulemaking during the comment period. We will consider all the comments we receive and may conduct additional rulemaking based on those comments. Discussion This AD is prompted by several reports of fatigue cracks on M/R blades installed on Bell Model 212 helicopters. The cracks were found in the lower skin, doublers, and box beam at the M/ R blade attachment bolt hole, and VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 through the lower grip plate at blade station (BS) 36. Because the fatigue cracks were discovered on M/R blades installed on the Bell Model 212 helicopters, we issued AD No. 2010–03– 03, Amendment 39–16186 (75 FR 5681, February 4, 2010) (AD 2010–03–03) for certain Bell Model 205B and 212 helicopters. That AD required visually inspecting the M/R blades for an edge void, corrosion, or a crack. After issuing that AD, we received another report of a fatigue crack on a M/R blade installed on a Model 212 helicopter. Further analysis by the manufacturer revealed that the inspections required by AD 2010–03–03 needed to be expanded and performed at an increased frequency, and on additional part-numbered M/R blades which can also be installed on other Bell model helicopters. We then issued AD No. 2011–23–02 (76 FR 68301, November 4, 2011) (AD 2011– 23–02), which superseded AD 2010–03– 03. AD 2011–23–02 retained the requirements of the superseded AD, increased the frequency and scope of the inspections required by that AD, and expanded the applicability to include the Model 205A–1 and 210 helicopters, additional M/R blade part numbers, and all helicopter serial numbers for the affected models. Since the issuance of AD 2011–23–02, we have determined that the same partnumbered M/R blades can also be installed on certain FAA-approved modified restricted category helicopters. Therefore, we are mandating the inspection requirements for the applicable restricted category helicopters. The actions specified in this AD are intended to detect an edge void, corrosion, or a crack on an M/R blade, which could lead to loss of the M/R blade and subsequent loss of control of the helicopter. 56529 blade skins of the M/R blade between blade stations 24.5 and 85. FAA’s Determination We are issuing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other helicopters of these same type designs. AD Requirements This AD requires, within 25 hours time-in-service (TIS), and thereafter at intervals not to exceed 25 hours TIS, the following actions: • Washing the upper and lower M/R blade surfaces using a solution of cleaning compound and water; • Visually inspecting the upper and lower grip plates, doublers, and remaining surfaces of the M/R blade in an area from blade stations 24.5 to 40, including the entire width of the M/R blade chord width for an edge void, any corrosion, or a crack; • Wiping each of the bond lines at the edges of both grip plates and each of the layered doublers with an alcohol-soaked cloth for their entire length and chord width and, using a 3x power or higher magnifying glass and a bright light, visually inspecting each of the bond lines on the upper and lower surfaces of the M/R blade for an edge void, any corrosion, or any edge delamination, as indicated by a crack in the paint finish. • If there is an edge delamination or a crack in the paint finish, removing paint from areas in which an edge delamination along any bond line of a grip plate or doubler or a crack in the M/R blade paint finish is discovered to determine if an edge void or a crack exists in the M/R blade and, if there is not an edge void or a crack, refinishing the sanded area; • Applying a light coat of preservative oil to all surfaces of the M/ R blade; • Replacing any M/R blade that has an edge void or any corrosion with an airworthy M/R blade or repairing the M/R blade if the damage is within the maximum repair damage limits; • Replacing any M/R blade that has a crack in any grip plate or doubler with an airworthy M/R blade; and • Replacing any M/R blade that has a crack in the M/R blade skin with an airworthy M/R blade, or repairing the M/R blade if the damage is within the maximum repair damage limits. Related Service Information Bell has issued Alert Service Bulletin (ASB) No. 205B–08–51 dated January 11, 2011 (ASB 205B–08–51) for Model 205B helicopters, ASB No. 210–08–03 dated January 10, 2011 (ASB 210–08– 03) for the Model 210 helicopters, and ASB No. 212–08–130 dated January 11, 2011 (ASB 212–08–130) for Model 212 helicopters, all revision B. The ASBs describe procedures to detect an edge void, corrosion, or a crack in the upper and lower grip plates, doublers, and Differences Between This AD and the Service Information This AD applies to various restricted category Model HH–1K, TH–1F, TH–1L, UH–1A, UH–1B, UH–1E, UH–1F, UH– 1H, UH–1L, and UH–1P helicopters; ASB 205B–08–51, ASB 210–08–03, and ASB 212–08–130 apply to Model 205B, 210, and 212 helicopters, respectively. This AD also differs from the ASBs as follows: • We do not include the requirement to inspect for a dark line along any of PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 E:\FR\FM\13SER1.SGM 13SER1 56530 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations the bond lines after wiping with an alcohol-soaked cloth to detect an edge void or edge delamination as stated in the ASBs. The alcohol is only being used as a cleaning agent for the purposes of this AD. • This AD requires inspecting for an edge void, a crack, or any corrosion in an area from blade stations 24.5 to 40, including the entire width of the M/R blade chord, while the ASBs require inspecting from blade stations 24.5 to 85. This AD includes the inspections of the bondlines for their entire length and chord width for an edge delamination or for a crack in the paint finish, while the ASB inspections do not. • The ASBs use the phrase ‘‘bond lines between doublers, grip plates, and skin’’ to describe the bond lines, and we use ‘‘bond lines at the edges of both grip plates and each of the layer doublers.’’ • The ASBs use the phrase ‘‘cracks in the bond lines between doublers or grip plates’’ to describe a separation of the doubler or grip plate along an edge, and we use the term ‘‘edge delamination.’’ Costs of Compliance We estimate that this AD will affect 25 helicopters of U.S. Registry. We estimate that operators may incur the following costs in order to comply with this AD. Washing and visually inspecting each M/R blade requires one work hour at an average labor rate of $85 per hour, for a cost per helicopter of $85 and a total cost to the U.S. operator fleet of $2,125 per inspection cycle. If an edge void, corrosion, or a crack is found, replacing an M/R blade with an airworthy M/R blade requires approximately 24 work hours at an average labor rate of $85 per hour, and required parts cost $121,875, for a total cost for each M/R blade replacement of $123,915. mstockstill on DSK4VPTVN1PROD with RULES FAA’s Justification and Determination of the Effective Date The short compliance time is required because the previously described critical unsafe condition can adversely affect the structural integrity and controllability of the helicopter. In addition, the various restricted category helicopters are high usage aircraft, and they could reach 100 hours TIS within 60 days. Therefore, the actions described previously are required within 25 hours TIS, a short compliance time, and are to be repeated thereafter at intervals not to exceed 25 hours TIS, VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 and this AD must be issued immediately. Since an unsafe condition exists that requires the immediate adoption of this AD, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in less than 30 days. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed, I certify that this AD: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction; and 4. 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 an economic evaluation of the estimated costs to comply with this AD and placed it in the AD docket. PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by Reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ 2012–17–10 Various Restricted Category Helicopters: Amendment 39–17173; Docket No. FAA–2012–0896; Directorate Identifier 2010–SW–070–AD. (a) Applicability This AD applies to restricted category Model HH–1K, TH–1F, TH–1L, UH–1A, UH– 1B, UH–1E, UH–1F, UH–1H, UH–1L, and UH–1P helicopters with a main rotor (M/R) blade, part number (P/N) 204–012–001–023 or –033; 210–015–001–101; 212–015–501– 005, –111, –113, –115, –117, –119, or –121, installed, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as an edge void, corrosion, or a crack on an M/R blade. This condition could lead to loss of the M/R blade and subsequent loss of control of the helicopter. (c) Effective Date This airworthiness directive (AD) becomes effective September 28, 2012. (d) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (e) Required Actions (1) Within 25 hours time-in-service (TIS), and thereafter at intervals not to exceed 25 hours TIS: (i) Wash the upper and lower surfaces of each affected M/R blade with a solution of cleaning compound (C–318) and water. Rinse thoroughly and wipe dry. (ii) Using a 3x power or higher magnifying glass and a bright light, on each affected M/ R blade, in an area from blade stations 24.5 to 40, including the entire width of the M/ R blade chord, as depicted in Figure 1 to Paragraph (e) of this AD: E:\FR\FM\13SER1.SGM 13SER1 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 Note 1 to paragraphs (e)(1)(ii) and (e)(1)(iv): The inspections required by paragraphs (e)(1)(ii) and (e)(1)(iv) of this AD do not require removal of the M/R blades from the M/R hub and can be accomplished PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 while the M/R blades are installed on the helicopter. Note 2 to paragraph (e)(1)(ii): Crack indications on an actual M/R blade are shown in Figure 2 to Paragraph (e) of this AD. E:\FR\FM\13SER1.SGM 13SER1 ER13SE12.001</GPH> mstockstill on DSK4VPTVN1PROD with RULES (A) Visually inspect the upper and lower grip plates and doublers of the M/R blade for an edge void, any corrosion, or a crack. (B) Visually inspect the remaining upper and lower surfaces of the M/R blade for an edge void, any corrosion, or a crack. 56531 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations (iii) Wipe each of the bond lines at the edges of both grip plates and each of the layered doublers (bond lines) on the upper and lower surfaces of each affected M/R blade with an alcohol-soaked cloth (C–385) for their entire length and chord width. Wipe dry with a clean cloth. (iv) Using a 3x power or higher magnifying glass and a bright light, visually inspect each of the bond lines on the upper and lower surfaces of the M/R blade for their entire length and chord width for an edge void, any corrosion, or any edge delamination, as indicated by a crack in the paint finish. An edge delamination is defined as a separation of the detail parts along an edge. Note 3 to paragraph (e)(1)(iv): A crack in the paint finish which follows the outline of a grip plate or doubler may indicate a possible edge void. VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 (v) If there is any edge delamination along any bond line of a grip plate or doubler, or a crack in the paint finish, before further flight, remove the paint in the affected area by lightly sanding with 180–220 grit paper in a span-wise direction to determine if there is an edge void, or if the grip plate, doubler, or skin is cracked. If any parent material is removed during the sanding operation, replace the M/R blade with an airworthy M/ R blade or repair the M/R blade if the amount of parent material removed is within the maximum repair damage limits. If there is no edge void or crack, refinish the sanded area. Note 4 to paragraphs (e)(1)(v) and (e)(2): The maximum repair damage limits are contained in the applicable Component and Repair Overhaul Manual. PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 (vi) If there is no edge void, corrosion, or crack, apply a light coat of preservative oil (C–125) to all surfaces of each affected M/R blade. (2) If an edge void, any corrosion, or a crack is discovered during any inspections in paragraph (e)(1) of this AD, before further flight, accomplish the following: (i) If there is an edge void, determine the depth and length using a .0015 inch feeler gauge. (ii) If there is an edge void in a grip plate or doubler near the outboard tip, tap inspect the affected area to determine the size and shape of the void. (iii) Repair the M/R blade if the edge void is within the maximum repair damage limits or replace the M/R blade with an airworthy M/R blade. E:\FR\FM\13SER1.SGM 13SER1 ER13SE12.002</GPH> mstockstill on DSK4VPTVN1PROD with RULES 56532 Federal Register / Vol. 77, No. 178 / Thursday, September 13, 2012 / Rules and Regulations (iv) If there is any corrosion, replace the M/ R blade with an airworthy M/R blade or repair the M/R blade if the damage is within the maximum repair damage limits. (v) If there is a crack in any grip plate or doubler, replace the M/R blade with an airworthy M/R blade. (vi) If there is a crack in the M/R blade skin, replace the M/R blade with an airworthy M/R blade, or repair the M/R blade if the damage is within the maximum repair damage limits. This document contains final regulations that apply to determine when property is traded on an established market (that is, publicly traded) for purposes of determining the issue price of a debt instrument. The regulations amend the current regulations to clarify the circumstances that cause property to be publicly traded. The regulations also amend the current regulations for reopenings of debt instruments, potentially abusive situations, and the definition of qualified stated interest. The regulations provide guidance to issuers and holders of debt instruments. DATES: Effective Date: These regulations are effective on September 13, 2012. Applicability Dates: For the applicability dates, see §§ 1.1273– 1(c)(6)(ii), 1.1273–2(f)(10), 1.1274– 3(b)(4)(ii), and 1.1275–2(k)(5). FOR FURTHER INFORMATION CONTACT: William E. Blanchard at (202) 622–3950 (not a toll-free number). SUPPLEMENTARY INFORMATION: the holder explicitly discloses that its determinations are different from the issuer’s determinations on a timely filed Federal income tax return for the taxable year that includes the acquisition date of the debt instrument. The disclosure must include how the holder determined the value or issue price that it is using. This information is required by the IRS to ensure consistent treatment between the issuer and the holders or to alert the IRS when inconsistent positions are being taken by the issuer and one or more holders. This information will be used for audit and examination purposes. The likely respondents are businesses or other forprofit institutions. Estimated total annual reporting burden is 10,000 hours. Estimated average annual burden per respondent is .5 hours. Estimated average burden per response is 5 minutes. Estimated number of respondents is 20,000. Estimated total frequency of responses is 20,000. An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a valid control number assigned by the Office of Management and Budget. Books or records relating to a collection of information must be retained as long as their contents may become material in the administration of any internal revenue law. Generally, tax returns and return information are confidential, as required by 26 U.S.C. 6103. Paperwork Reduction Act The collection of information contained in these regulations relating to the furnishing of information under § 1.1273–2 to determine the issue price of a debt instrument was previously reviewed and approved by the Office of Management and Budget in accordance with the Paperwork Reduction Act of 1995 (44 U.S.C. 3507) under control number 1545–1353. The collection of information in these final regulations is in § 1.1273–2(f)(9) and is an increase in the total annual burden in the current regulations under § 1.1273–2. Under § 1.1273–2(f)(9), the issuer of a debt instrument is required to make the fair market value of property (which can be stated as the issue price of the debt instrument) available to holders in a commercially reasonable fashion within 90 days of the date that the debt instruments are issued, including by electronic publication. The issuer’s determinations are binding on all holders of the debt instrument unless Background The issue price of a debt instrument is determined under section 1273(b) of the Internal Revenue Code (Code) or, in the case of certain debt instruments issued for property, under section 1274. Section 1273(b)(3) generally provides that in the case of a debt instrument issued for property and part of an issue some or all of which is traded on an established securities market (often referred to as ‘‘publicly traded’’), the issue price of the debt instrument is the fair market value of the debt instrument. Similarly, if a debt instrument is issued for stock or securities (or other property) that are publicly traded, the issue price of the debt instrument is the fair market value of the stock, securities, or other property. If a debt instrument issued for property is not publicly traded or is not issued for property that is publicly traded, the issue price of the debt instrument is usually determined under section 1274, which generally results in an issue price equal to the stated DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Parts 1 and 602 [TD 9599] RIN 1545–BJ71 Property Traded on an Established Market (f) Special Flight Permits Special flight permits will be permitted for flights to an authorized inspection and repair facility provided the one-time ferry flight does not exceed 5 hours TIS and is for the accomplishment of an inspection only. Internal Revenue Service (IRS), Treasury. ACTION: Final regulations. SUMMARY: (g) Alternative Methods of Compliance (AMOCs) (1) The Manager, Rotorcraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: Michael Kohner, Aviation Safety Engineer, Rotorcraft Certification Office, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, TX 76137; telephone (817) 222–5170; email 7avs-asw-170@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before operating any aircraft complying with this AD through an AMOC. (h) Additional Information Bell Helicopter Alert Service Bulletin (ASB) No. 205B–08–51 Revision B, dated January 11, 2011, for Model 205B helicopters, ASB No. 210–08–03 Revision B, dated January 10, 2011 for the Model 210 helicopters, and ASB No. 212–08–130 Revision B, dated January 11, 2011, for Model 212 helicopters, which are not incorporated by reference, contain additional information about the subject of this AD. For service information identified in this AD, contact Bell Helicopter Textron, Inc., P.O. Box 482, Fort Worth, TX 76101; telephone (817) 280–3391; fax (817) 280–6466; or at http://www.bellcustomer.com/files/. You may review a copy of this service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. (i) Subject mstockstill on DSK4VPTVN1PROD with RULES Joint Aircraft Service Component (JASC) Code: 6210: Main Rotor Blades. Issued in Fort Worth, Texas, on August 21, 2012. Lance T. Gant, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 2012–22564 Filed 9–12–12; 8:45 am] BILLING CODE 4910–13–P VerDate Mar<15>2010 17:08 Sep 12, 2012 Jkt 226001 56533 AGENCY: PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 E:\FR\FM\13SER1.SGM 13SER1

Agencies

[Federal Register Volume 77, Number 178 (Thursday, September 13, 2012)]
[Rules and Regulations]
[Pages 56528-56533]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-22564]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-0896; Directorate Identifier 2010-SW-070-AD; 
Amendment 39-17173; AD 2012-17-10]
RIN 2120-AA64


Airworthiness Directives; Various Restricted Category Helicopters

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

ACTION: Final rule; request for comments.

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SUMMARY: We are adopting a new airworthiness directive (AD) for various 
restricted category Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-
1F, UH-1H, UH-1L, and UH-1P helicopters with certain main rotor (M/R) 
blade assemblies installed, to require inspecting the grip plates, 
doublers, and upper and lower surfaces of the M/R blades in the area 
between blade stations 24.5 and 40 for an edge void, corrosion, or a 
crack. This AD is prompted by several reports of fatigue cracks on M/R 
blades installed on Bell Helicopter Textron, Inc. (Bell) Model 212 
helicopters. These same part-numbered M/R blades may also be installed 
on certain FAA-approved modified restricted category helicopters. These 
actions are intended to detect an edge void, corrosion, or a crack on 
an M/R blade, which could lead to loss of the M/R blade and subsequent 
loss of control of the helicopter.

DATES: This AD becomes effective September 28, 2012.
    We must receive comments on this AD by November 13, 2012.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    Examining the AD Docket: You may examine the AD docket on the 
Internet at http://www.regulations.gov or in person at the Docket 
Operations Office

[[Page 56529]]

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 in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.
    For service information identified in this AD, contact Bell 
Helicopter Textron, Inc., P.O. Box 482, Fort Worth, TX 76101; telephone 
(817) 280-3391; fax (817) 280-6466; or at http://www.bellcustomer.com/files/. You may review a copy of the referenced service information at 
the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham 
Blvd., Room 663, Fort Worth, Texas 76137.

FOR FURTHER INFORMATION CONTACT: Michael Kohner, Aviation Safety 
Engineer, Rotorcraft Certification Office, Rotorcraft Directorate, FAA, 
2601 Meacham Blvd., Fort Worth, TX 76137; telephone (817) 222-5170; 
email 7-avs-asw-170@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not provide you with notice and an opportunity to 
provide your comments prior to it becoming effective. However, we 
invite you to participate in this rulemaking by submitting written 
comments, data, or views. We also invite comments relating to the 
economic, environmental, energy, or federalism impacts that resulted 
from adopting this AD. The most helpful comments reference a specific 
portion of the AD, explain the reason for any recommended change, and 
include supporting data. To ensure the docket does not contain 
duplicate comments, commenters should send only one copy of written 
comments, or if comments are filed electronically, commenters should 
submit them only one time. We will file in the docket all comments that 
we receive, as well as a report summarizing each substantive public 
contact with FAA personnel concerning this rulemaking during the 
comment period. We will consider all the comments we receive and may 
conduct additional rulemaking based on those comments.

Discussion

    This AD is prompted by several reports of fatigue cracks on M/R 
blades installed on Bell Model 212 helicopters. The cracks were found 
in the lower skin, doublers, and box beam at the M/R blade attachment 
bolt hole, and through the lower grip plate at blade station (BS) 36. 
Because the fatigue cracks were discovered on M/R blades installed on 
the Bell Model 212 helicopters, we issued AD No. 2010-03-03, Amendment 
39-16186 (75 FR 5681, February 4, 2010) (AD 2010-03-03) for certain 
Bell Model 205B and 212 helicopters. That AD required visually 
inspecting the M/R blades for an edge void, corrosion, or a crack. 
After issuing that AD, we received another report of a fatigue crack on 
a M/R blade installed on a Model 212 helicopter. Further analysis by 
the manufacturer revealed that the inspections required by AD 2010-03-
03 needed to be expanded and performed at an increased frequency, and 
on additional part-numbered M/R blades which can also be installed on 
other Bell model helicopters. We then issued AD No. 2011-23-02 (76 FR 
68301, November 4, 2011) (AD 2011-23-02), which superseded AD 2010-03-
03. AD 2011-23-02 retained the requirements of the superseded AD, 
increased the frequency and scope of the inspections required by that 
AD, and expanded the applicability to include the Model 205A-1 and 210 
helicopters, additional M/R blade part numbers, and all helicopter 
serial numbers for the affected models.
    Since the issuance of AD 2011-23-02, we have determined that the 
same part-numbered M/R blades can also be installed on certain FAA-
approved modified restricted category helicopters. Therefore, we are 
mandating the inspection requirements for the applicable restricted 
category helicopters. The actions specified in this AD are intended to 
detect an edge void, corrosion, or a crack on an M/R blade, which could 
lead to loss of the M/R blade and subsequent loss of control of the 
helicopter.

FAA's Determination

    We are issuing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other helicopters of these same type 
designs.

Related Service Information

    Bell has issued Alert Service Bulletin (ASB) No. 205B-08-51 dated 
January 11, 2011 (ASB 205B-08-51) for Model 205B helicopters, ASB No. 
210-08-03 dated January 10, 2011 (ASB 210-08-03) for the Model 210 
helicopters, and ASB No. 212-08-130 dated January 11, 2011 (ASB 212-08-
130) for Model 212 helicopters, all revision B. The ASBs describe 
procedures to detect an edge void, corrosion, or a crack in the upper 
and lower grip plates, doublers, and blade skins of the M/R blade 
between blade stations 24.5 and 85.

AD Requirements

    This AD requires, within 25 hours time-in-service (TIS), and 
thereafter at intervals not to exceed 25 hours TIS, the following 
actions:
     Washing the upper and lower M/R blade surfaces using a 
solution of cleaning compound and water;
     Visually inspecting the upper and lower grip plates, 
doublers, and remaining surfaces of the M/R blade in an area from blade 
stations 24.5 to 40, including the entire width of the M/R blade chord 
width for an edge void, any corrosion, or a crack;
     Wiping each of the bond lines at the edges of both grip 
plates and each of the layered doublers with an alcohol-soaked cloth 
for their entire length and chord width and, using a 3x power or higher 
magnifying glass and a bright light, visually inspecting each of the 
bond lines on the upper and lower surfaces of the M/R blade for an edge 
void, any corrosion, or any edge delamination, as indicated by a crack 
in the paint finish.
     If there is an edge delamination or a crack in the paint 
finish, removing paint from areas in which an edge delamination along 
any bond line of a grip plate or doubler or a crack in the M/R blade 
paint finish is discovered to determine if an edge void or a crack 
exists in the M/R blade and, if there is not an edge void or a crack, 
refinishing the sanded area;
     Applying a light coat of preservative oil to all surfaces 
of the M/R blade;
     Replacing any M/R blade that has an edge void or any 
corrosion with an airworthy M/R blade or repairing the M/R blade if the 
damage is within the maximum repair damage limits;
     Replacing any M/R blade that has a crack in any grip plate 
or doubler with an airworthy M/R blade; and
     Replacing any M/R blade that has a crack in the M/R blade 
skin with an airworthy M/R blade, or repairing the M/R blade if the 
damage is within the maximum repair damage limits.

Differences Between This AD and the Service Information

    This AD applies to various restricted category Model HH-1K, TH-1F, 
TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P helicopters; 
ASB 205B-08-51, ASB 210-08-03, and ASB 212-08-130 apply to Model 205B, 
210, and 212 helicopters, respectively.
    This AD also differs from the ASBs as follows:
     We do not include the requirement to inspect for a dark 
line along any of

[[Page 56530]]

the bond lines after wiping with an alcohol-soaked cloth to detect an 
edge void or edge delamination as stated in the ASBs. The alcohol is 
only being used as a cleaning agent for the purposes of this AD.
     This AD requires inspecting for an edge void, a crack, or 
any corrosion in an area from blade stations 24.5 to 40, including the 
entire width of the M/R blade chord, while the ASBs require inspecting 
from blade stations 24.5 to 85. This AD includes the inspections of the 
bondlines for their entire length and chord width for an edge 
delamination or for a crack in the paint finish, while the ASB 
inspections do not.
     The ASBs use the phrase ``bond lines between doublers, 
grip plates, and skin'' to describe the bond lines, and we use ``bond 
lines at the edges of both grip plates and each of the layer 
doublers.''
     The ASBs use the phrase ``cracks in the bond lines between 
doublers or grip plates'' to describe a separation of the doubler or 
grip plate along an edge, and we use the term ``edge delamination.''

Costs of Compliance

    We estimate that this AD will affect 25 helicopters of U.S. 
Registry.
    We estimate that operators may incur the following costs in order 
to comply with this AD. Washing and visually inspecting each M/R blade 
requires one work hour at an average labor rate of $85 per hour, for a 
cost per helicopter of $85 and a total cost to the U.S. operator fleet 
of $2,125 per inspection cycle. If an edge void, corrosion, or a crack 
is found, replacing an M/R blade with an airworthy M/R blade requires 
approximately 24 work hours at an average labor rate of $85 per hour, 
and required parts cost $121,875, for a total cost for each M/R blade 
replacement of $123,915.

FAA's Justification and Determination of the Effective Date

    The short compliance time is required because the previously 
described critical unsafe condition can adversely affect the structural 
integrity and controllability of the helicopter. In addition, the 
various restricted category helicopters are high usage aircraft, and 
they could reach 100 hours TIS within 60 days. Therefore, the actions 
described previously are required within 25 hours TIS, a short 
compliance time, and are to be repeated thereafter at intervals not to 
exceed 25 hours TIS, and this AD must be issued immediately.
    Since an unsafe condition exists that requires the immediate 
adoption of this AD, we determined that notice and opportunity for 
public comment before issuing this AD are impracticable and that good 
cause exists for making this amendment effective in less than 30 days.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
Government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska to the extent that 
it justifies making a regulatory distinction; and
    4. 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 an economic evaluation of the estimated costs to comply 
with this AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 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 adding the following new airworthiness 
directive (AD):

2012-17-10 Various Restricted Category Helicopters: Amendment 39-
17173; Docket No. FAA-2012-0896; Directorate Identifier 2010-SW-070-
AD.

(a) Applicability

    This AD applies to restricted category Model HH-1K, TH-1F, TH-
1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P helicopters 
with a main rotor (M/R) blade, part number (P/N) 204-012-001-023 or 
-033; 210-015-001-101; 212-015-501-005, -111, -113, -115, -117, -
119, or -121, installed, certificated in any category.

(b) Unsafe Condition

    This AD defines the unsafe condition as an edge void, corrosion, 
or a crack on an M/R blade. This condition could lead to loss of the 
M/R blade and subsequent loss of control of the helicopter.

(c) Effective Date

    This airworthiness directive (AD) becomes effective September 
28, 2012.

(d) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(e) Required Actions

    (1) Within 25 hours time-in-service (TIS), and thereafter at 
intervals not to exceed 25 hours TIS:
    (i) Wash the upper and lower surfaces of each affected M/R blade 
with a solution of cleaning compound (C-318) and water. Rinse 
thoroughly and wipe dry.
    (ii) Using a 3x power or higher magnifying glass and a bright 
light, on each affected M/R blade, in an area from blade stations 
24.5 to 40, including the entire width of the M/R blade chord, as 
depicted in Figure 1 to Paragraph (e) of this AD:

[[Page 56531]]

[GRAPHIC] [TIFF OMITTED] TR13SE12.001

    (A) Visually inspect the upper and lower grip plates and 
doublers of the M/R blade for an edge void, any corrosion, or a 
crack.
    (B) Visually inspect the remaining upper and lower surfaces of 
the M/R blade for an edge void, any corrosion, or a crack.

    Note 1 to paragraphs (e)(1)(ii) and (e)(1)(iv):  The inspections 
required by paragraphs (e)(1)(ii) and (e)(1)(iv) of this AD do not 
require removal of the M/R blades from the M/R hub and can be 
accomplished while the M/R blades are installed on the helicopter.


    Note 2 to paragraph (e)(1)(ii):  Crack indications on an actual 
M/R blade are shown in Figure 2 to Paragraph (e) of this AD.


[[Page 56532]]


[GRAPHIC] [TIFF OMITTED] TR13SE12.002

    (iii) Wipe each of the bond lines at the edges of both grip 
plates and each of the layered doublers (bond lines) on the upper 
and lower surfaces of each affected M/R blade with an alcohol-soaked 
cloth (C-385) for their entire length and chord width. Wipe dry with 
a clean cloth.
    (iv) Using a 3x power or higher magnifying glass and a bright 
light, visually inspect each of the bond lines on the upper and 
lower surfaces of the M/R blade for their entire length and chord 
width for an edge void, any corrosion, or any edge delamination, as 
indicated by a crack in the paint finish. An edge delamination is 
defined as a separation of the detail parts along an edge.

    Note 3 to paragraph (e)(1)(iv):  A crack in the paint finish 
which follows the outline of a grip plate or doubler may indicate a 
possible edge void.

    (v) If there is any edge delamination along any bond line of a 
grip plate or doubler, or a crack in the paint finish, before 
further flight, remove the paint in the affected area by lightly 
sanding with 180-220 grit paper in a span-wise direction to 
determine if there is an edge void, or if the grip plate, doubler, 
or skin is cracked. If any parent material is removed during the 
sanding operation, replace the M/R blade with an airworthy M/R blade 
or repair the M/R blade if the amount of parent material removed is 
within the maximum repair damage limits. If there is no edge void or 
crack, refinish the sanded area.

    Note 4 to paragraphs (e)(1)(v) and (e)(2):  The maximum repair 
damage limits are contained in the applicable Component and Repair 
Overhaul Manual.

    (vi) If there is no edge void, corrosion, or crack, apply a 
light coat of preservative oil (C-125) to all surfaces of each 
affected M/R blade.
    (2) If an edge void, any corrosion, or a crack is discovered 
during any inspections in paragraph (e)(1) of this AD, before 
further flight, accomplish the following:
    (i) If there is an edge void, determine the depth and length 
using a .0015 inch feeler gauge.
    (ii) If there is an edge void in a grip plate or doubler near 
the outboard tip, tap inspect the affected area to determine the 
size and shape of the void.
    (iii) Repair the M/R blade if the edge void is within the 
maximum repair damage limits or replace the M/R blade with an 
airworthy M/R blade.

[[Page 56533]]

    (iv) If there is any corrosion, replace the M/R blade with an 
airworthy M/R blade or repair the M/R blade if the damage is within 
the maximum repair damage limits.
    (v) If there is a crack in any grip plate or doubler, replace 
the M/R blade with an airworthy M/R blade.
    (vi) If there is a crack in the M/R blade skin, replace the M/R 
blade with an airworthy M/R blade, or repair the M/R blade if the 
damage is within the maximum repair damage limits.

(f) Special Flight Permits

    Special flight permits will be permitted for flights to an 
authorized inspection and repair facility provided the one-time 
ferry flight does not exceed 5 hours TIS and is for the 
accomplishment of an inspection only.

(g) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Rotorcraft Certification Office, FAA, may 
approve AMOCs for this AD. Send your proposal to: Michael Kohner, 
Aviation Safety Engineer, Rotorcraft Certification Office, 
Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, TX 
76137; telephone (817) 222-5170; email 7-avs-asw-170@faa.gov.
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office before operating any aircraft 
complying with this AD through an AMOC.

(h) Additional Information

    Bell Helicopter Alert Service Bulletin (ASB) No. 205B-08-51 
Revision B, dated January 11, 2011, for Model 205B helicopters, ASB 
No. 210-08-03 Revision B, dated January 10, 2011 for the Model 210 
helicopters, and ASB No. 212-08-130 Revision B, dated January 11, 
2011, for Model 212 helicopters, which are not incorporated by 
reference, contain additional information about the subject of this 
AD. For service information identified in this AD, contact Bell 
Helicopter Textron, Inc., P.O. Box 482, Fort Worth, TX 76101; 
telephone (817) 280-3391; fax (817) 280-6466; or at http://www.bellcustomer.com/files/. You may review a copy of this service 
information at the FAA, Office of the Regional Counsel, Southwest 
Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137.

(i) Subject

    Joint Aircraft Service Component (JASC) Code: 6210: Main Rotor 
Blades.

    Issued in Fort Worth, Texas, on August 21, 2012.
Lance T. Gant,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2012-22564 Filed 9-12-12; 8:45 am]
BILLING CODE 4910-13-P