Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes) and A310 Series Airplanes, 38069-38072 [2011-16367]

Download as PDF 38069 Federal Register / Vol. 76, No. 125 / Wednesday, June 29, 2011 / Proposed Rules Manual, CSP A–012; and the service bulletins listed in table 6 of this AD; for related information. TABLE 6—RELATED SERVICE INFORMATION Document Bombardier Bombardier Bombardier Bombardier Bombardier Bombardier Bombardier Bombardier Alert Service Bulletin A601R–29–029 .............................................. Alert Service Bulletin A601R–29–031 .............................................. Alert Service Bulletin A601R–32–103 .............................................. Service Bulletin 601R–29–032 ......................................................... Service Bulletin 601R–29–033 ......................................................... Service Bulletin 601R–29–035 ......................................................... Service Bulletin 601R–32–106 ......................................................... Service Bulletin 601R–32–107 ......................................................... Issued in Renton, Washington, on June 16, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011–16365 Filed 6–28–11; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0647; Directorate Identifier 2010–NM–193–AD] RIN 2120–AA64 Airworthiness Directives; Airbus Model A300 B4–600, B4–600R, and F4–600R Series Airplanes, and Model C4–605R Variant F Airplanes (Collectively Called A300–600 Series Airplanes) and A310 Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: SUMMARY: srobinson on DSK4SPTVN1PROD with PROPOSALS Revision Surface defects were visually detected on the rudder of an Airbus A319 and an A321 in-service aeroplane. Investigation has determined that the defects reported on both rudders corresponded to areas that had been reworked in production. The investigation confirmed that the defects were the result of de-bonding between the skin and honeycomb core. Such reworks were also performed on some rudders fitted on A310 and A300–600 aeroplanes. An extended de-bonding, if not detected and corrected, may degrade the structural integrity of the rudder. The loss of the rudder VerDate Mar<15>2010 16:52 Jun 28, 2011 Jkt 223001 B ............................................................ A ............................................................ D ........................................................... A ............................................................ A ............................................................ A ............................................................ A ............................................................ B ............................................................ leads to degradation of the handling qualities and reduces the controllability of the aeroplane. * * * * * The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI. DATES: We must receive comments on this proposed AD by August 15, 2011. 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 comments. • 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 W12–40, 1200 New Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Airbus SAS– EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; e-mail account.airworth-eas@airbus.com; Internet https://www.airbus.com. You may review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425–227– 1221. Examining the AD 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 proposed AD, the regulatory evaluation, any comments received, and other information. The PO 00000 Frm 00011 Fmt 4702 Date Sfmt 4702 May 11, 2010. March 26, 2009. May 11, 2010. January 26, 2010. May 11, 2010. December 8, 2010. May 11, 2010. December 8, 2010. 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 FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–2125; fax (425) 227–1149. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2011–0647; Directorate Identifier 2010–NM–193–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD based on those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA Airworthiness Directive 2010–0144, dated July 16, 2010 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: Surface defects were visually detected on the rudder of an Airbus A319 and an A321 in-service aeroplane. Investigation has determined that the defects reported on both rudders corresponded to areas that had been reworked in production. The investigation E:\FR\FM\29JNP1.SGM 29JNP1 38070 Federal Register / Vol. 76, No. 125 / Wednesday, June 29, 2011 / Proposed Rules confirmed that the defects were the result of de-bonding between the skin and honeycomb core. Such reworks were also performed on some rudders fitted on A310 and A300–600 aeroplanes. An extended de-bonding, if not detected and corrected, may degrade the structural integrity of the rudder. The loss of the rudder leads to degradation of the handling qualities and reduces the controllability of the aeroplane. To address this unsafe condition EASA issued AD 2010–0002 [which corresponds to FAA AD 2010–16–13, amendment 39– 16390], superseding [EASA] AD 2009–0166, to require inspections of specific areas and, depending on findings, the application of corrective actions for those rudders where production reworks have been identified. This new [EASA] AD addresses the rudder population that has also been reworked in production, but not included in the applicability of EASA AD 2010–0002. The required actions, for certain rudders, include vacuum loss inspections and elasticity laminate checker inspections for defects including de-bonding between the skin and honeycomb core of the rudder. The corrective action is contacting the FAA or EASA for repair instructions if any defects are found. For certain other rudders, the required actions include replacing the rudder with a serviceable rudder. We are considering similar rulemaking action on Model A319 and A321 airplanes. You may obtain further information by examining the MCAI in the AD docket. srobinson on DSK4SPTVN1PROD with PROPOSALS Relevant Service Information Airbus has issued Mandatory Service Bulletins A310–55–2049 and A300–55– 6048, both dated March 16, 2010. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. FAA’s Determination and Requirements of This Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all pertinent information and determined an unsafe condition exists and is likely to exist or develop on other products of the same type design. Differences Between This AD and the MCAI or Service Information We have reviewed the MCAI and related service information and, in general, agree with their substance. But VerDate Mar<15>2010 16:52 Jun 28, 2011 Jkt 223001 we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information. We might also have proposed different actions in this AD from those in the MCAI in order to follow FAA policies. Any such differences are highlighted in a NOTE within the proposed AD. 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 regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. Costs of Compliance Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Based on the service information, we estimate that this proposed AD would affect about 215 products of U.S. registry. We also estimate that it would take about 4 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $73,100, or $340 per product. 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 proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 List of Subjects in 14 CFR Part 39 The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: Airbus: Docket No. FAA–2011–0647; Directorate Identifier 2010–NM–193–AD. Comments Due Date (a) We must receive comments by August 15, 2011. Affected ADs (b) None. Applicability (c) This AD applies to Airbus Model A300 B4–601, B4–603, B4–620, B4–622, B4–605R, B4–622R, F4–605R, F4–622R, and C4–605R Variant F airplanes; and Model A310–203, –204, –221, –222, –304, –322, –324, and –325 airplanes; certificated in any category; equipped with carbon fiber reinforced plastic rudders having any part number and serial number listed in Table 1, 2, 3, or 4 of this AD. TABLE 1—RUDDER INFORMATION Rudder part No. A554–71710–000–00 A554–71710–000–00 A554–71710–000–00 A554–71710–002–00 A554–71710–004–00 E:\FR\FM\29JNP1.SGM 29JNP1 ................... ................... ................... ................... ................... Affected rudder serial No. TS–2010 TS–2027 TS–2030 TS–2043 TS–2048 Federal Register / Vol. 76, No. 125 / Wednesday, June 29, 2011 / Proposed Rules the compliance times specified, unless the actions have already been done. TABLE 2—RUDDER INFORMATION Rudder part No. Affected rudder serial No. MSN—scrapped ........................... A554–71710–000–00 ................... A554–71710–000–00 ................... A554–71710–002–00 ................... A554–71710–004–00 ................... A554–71710–004–00 ................... A554–71710–004–00 ................... A554–71710–004–00 ................... A554–71710–004–00 ................... A554–71730–000–00–0000 ......... A554–71730–000–00–0000 ......... A554–71730–000–00–0000 ......... A554–71730–000–00–0000 ......... A554–71730–000–00–0000 ......... TS–1362 TS–2006 TS–2008 TS–2033 TS–2054 TS–2061 TS–2071 TS–2072 TS–2073 TS–2082 TS–2084 TS–2085 TS–2086 TS–2087 TABLE 3—RUDDER INFORMATION Affected rudder serial No. Rudder part No. A554–71500–016–30 A554–71710–004–00 A554–71710–004–00 A554–71710–004–00 ................... ................... ................... ................... HF–1254 TS–2049 TS–2055 TS–2059 TABLE 4—RUDDER INFORMATION Affected rudder serial No. Rudder part No. A554–71500–016–91 A554–71500–014–00 A554–71500–016–00 A554–71500–016–00 A554–71500–026–00 ................... ................... ................... ................... ................... HF–1044 HF–1116 HF–1183 HF–1184 TS–1402 Subject (d) Air Transport Association (ATA) of America Code 55: Stabilizers. srobinson on DSK4SPTVN1PROD with PROPOSALS Reason (e) The mandatory continuing airworthiness information (MCAI) states: Surface defects were visually detected on the rudder of an Airbus A319 and an A321 in-service aeroplane. Investigation has determined that the defects reported on both rudders corresponded to areas that had been reworked in production. The investigation confirmed that the defects were the result of de-bonding between the skin and honeycomb core. Such reworks were also performed on some rudders fitted on A310 and A300–600 aeroplanes. An extended de-bonding, if not detected and corrected, may degrade the structural integrity of the rudder. The loss of the rudder leads to degradation of the handling qualities and reduces the controllability of the aeroplane. * * * * * Compliance (f) You are responsible for having the actions required by this AD performed within VerDate Mar<15>2010 16:52 Jun 28, 2011 Jkt 223001 Inspections and Corrective Actions for Rudders Identified in Tables 1, 2, and 3 (g) For rudders identified in Table 1 or Table 2 of this AD: Do the actions specified in paragraph (g)(1) or (g)(2) of this AD, as applicable, and paragraphs (g)(3) and (g)(4) of this AD, at the time specified. Do the actions in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 (for Model A310 series airplanes) or A300–55–6048 (for Model A300–600 series airplanes), both dated March 16, 2010. (1) For rudders identified in Table 1 of this AD: Within 8 months after the effective date of this AD, perform a vacuum loss inspection in the ‘‘area 1’’ location defined in Airbus Mandatory Service Bulletin A310–55–2049 or A300–55–6048, both dated March 16, 2010, as applicable, to detect defects, including de-bonding. (2) For rudders identified in Table 2 of this AD: Within 24 months after the effective date of this AD, perform a vacuum loss inspection in the ‘‘area 1’’ location defined in Airbus Mandatory Service Bulletin A310–55–2049 or A300–55–6048, both dated March 16, 2010, as applicable, to detect defects, including de-bonding. (3) Within 24 months after the effective date of this AD: Do an elasticity laminate checker inspection to detect defects, including de-bonding, in the trailing edge location. (4) Repeat the inspection required by paragraph (g)(3) of this AD two times at intervals not to exceed 4,500 flight cycles, but not fewer than 4,000 flight cycles from the most recent inspection. (h) For rudders identified in Table 3 of this AD: Do the actions specified in paragraphs (h)(1) and (h)(2) of this AD at the time specified. Do the actions in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 (for Model A310 series airplanes) or A300– 55–6048 (for Model A300–600 series airplanes), both dated March 16, 2010. (1) Within 4,500 flight cycles after the effective date of this AD, but not fewer than 4,000 flight cycles from the most recent elasticity laminate checker inspection: Do an elasticity laminate checker inspection to detect defects, including de-bonding, in the trailing edge location. (2) Repeat the inspection required by paragraph (h)(1) of this AD one time within 4,500 flight cycles, but not fewer than 4,000 flight cycles from the last inspection. (i) If any defect is found during any inspection required by paragraphs (g) and (h) of this AD, before further flight, repair in accordance with a method approved by the Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, or the European Aviation Safety Agency (EASA) (or its delegated agent). (j) If no defect is found during the inspections required by paragraphs (g)(1) and (g)(2) of this AD, before further flight, restore the vacuum loss holes with the temporary restoration with self adhesive tape, temporary restoration with resin, or PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 38071 permanent restoration with resin and surface protection. Do the applicable actions specified in paragraph (j)(1) or (j)(2) of this AD. (1) For airplanes on which a temporary restoration with self-adhesive disks or tapes is done, within 4 months after doing the restoration, do a detailed inspection for loose or missing self-adhesive disks or tapes and repeat the inspection thereafter at intervals not to exceed 4 months until the permanent restoration is done, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 (for Model A310 series airplanes) or A300– 55–6048 (for Model A300–600 series airplanes), both dated March 16, 2010. If any loose or missing self-adhesive disks or tapes are found during any inspection required by this AD, before further flight, close the holes, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 or A300–55–6048, both dated March 16, 2010, as applicable. Do the permanent restoration within 4,500 flight cycles after doing the temporary restoration, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 or A300–55–6048, both dated March 16, 2010, as applicable. (2) For airplanes on which a temporary restoration with resin is done: Within 4,500 flight cycles after doing the temporary restoration do the permanent restoration, in accordance with the Accomplishment Instructions of Airbus Mandatory Service Bulletin A310–55–2049 (for Model A310 series airplanes) or A300–55–6048 (for Model A300–600 series airplanes), both dated March 16, 2010. Reporting (k) At the applicable time specified in paragraph (k)(1) or (k)(2) of this AD: Report the results of each inspection required by paragraphs (g) and (h) of this AD, including no findings, to Airbus, as specified in Airbus Mandatory Service Bulletin A310–55–2049 (for Model A310 series airplanes) or A300– 55–6048 (for Model A300–600 series airplanes), both dated March 16, 2010. (1) Inspections done before the effective date of this AD: Within 30 days after the effective date of this AD. (2) Inspections done on or after the effective date of this AD: Within 30 days after accomplishment of the inspection. Replacement for Rudders Identified in Table 4 (l) For rudders identified in Table 4 of this AD: Within 8 months after the effective date of this AD, replace the affected rudder with a serviceable unit, in accordance with a method approved by the Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, or the EASA (or its delegated agent). Parts Installation (m) As of the effective date of this AD, no person may install any rudder identified in Table 1, 2, or 3 of this AD on any airplane, unless the rudder has been inspected and all applicable corrective actions have been done in accordance with paragraphs (g), (h), and (i) of this AD, as applicable. E:\FR\FM\29JNP1.SGM 29JNP1 38072 Federal Register / Vol. 76, No. 125 / Wednesday, June 29, 2011 / Proposed Rules (n) As of the effective date of this AD, no person may install any rudder identified in Table 4 of this AD on any airplane. FAA AD Differences srobinson on DSK4SPTVN1PROD with PROPOSALS Note 1: This AD differs from the MCAI and/or service information as follows: No differences. [FR Doc. 2011–16367 Filed 6–28–11; 8:45 am] BILLING CODE 4910–13–P Other FAA AD Provisions (o) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM–116, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the International Branch, send it to ATTN: Dan Rodina, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057– 3356; telephone (425) 227–2125; fax (425) 227–1149. Information may be e-mailed to: 9-ANM-116-AMOC-REQUESTS@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. The AMOC approval letter must specifically reference this AD. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120–0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave., SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES–200. Related Information (p) Refer to MCAI EASA Airworthiness Directive 2010–0144, dated July 16, 2010; and Airbus Mandatory Service Bulletins A310–55–2049 and A300–55–6048, both dated March 16, 2010; for related information. VerDate Mar<15>2010 16:52 Jun 28, 2011 Jkt 223001 Issued in Renton, Washington, on June 16, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0644; Directorate Identifier 2010–NM–265–AD] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Model 777 Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require repetitive detailed inspection and high frequency eddy current (HFEC) inspections for cracks of the wing center section (WCS) spanwise beams, and repair if necessary. This proposed AD was prompted by reports of cracks found in the web pockets of the WCS spanwise beams. We are proposing this AD to detect and correct cracking in the WCS spanwise beams, which could result in reduced structural integrity of the wings. DATES: We must receive comments on this proposed AD by August 15, 2011. 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 comments. • 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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124– 2207; telephone 206–544–5000, extension 1; fax 206–766–5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.com. You may review copies of the referenced SUMMARY: PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425–227– 1221. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Duong Tran, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; phone: (425) 917–6452; Fax: (425) 917–6590; e-mail: duong.tran@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2011–0644; Directorate Identifier 2010– NM–265–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We have received reports of cracking in the wing center section (WSC) spanwise beams. Two operators reported finding a crack in the web pockets of WCS spanwise beams on two airplanes. In the first report, metallurgical testing showed the cracks were the result of fatigue from reverse bending (diagonal tension buckling). If cracking at multiple locations occurs in multiple spanwise beams, the WCS spanwise beams might not be able E:\FR\FM\29JNP1.SGM 29JNP1

Agencies

[Federal Register Volume 76, Number 125 (Wednesday, June 29, 2011)]
[Proposed Rules]
[Pages 38069-38072]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-16367]

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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0647; Directorate Identifier 2010-NM-193-AD]
RIN 2120-AA64

Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and
F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes
(Collectively Called A300-600 Series Airplanes) and A310 Series
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

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

Surface defects were visually detected on the rudder of an
Airbus A319 and an A321 in-service aeroplane. Investigation has
determined that the defects reported on both rudders corresponded to
areas that had been reworked in production. The investigation
confirmed that the defects were the result of de-bonding between the
skin and honeycomb core. Such reworks were also performed on some
rudders fitted on A310 and A300-600 aeroplanes.
An extended de-bonding, if not detected and corrected, may
degrade the structural integrity of the rudder. The loss of the
rudder leads to degradation of the handling qualities and reduces
the controllability of the aeroplane.
* * * * *
The proposed AD would require actions that are intended to address the
unsafe condition described in the MCAI.

DATES: We must receive comments on this proposed AD by August 15, 2011.

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 comments.
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 W12-40, 1200 New
Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this proposed AD, contact
Airbus SAS-EAW (Airworthiness Office), 1 Rond Point Maurice Bellonte,
31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61
93 44 51; e-mail account.airworth-eas@airbus.com; Internet https://www.airbus.com. You may review copies of the referenced service
information at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue, SW., Renton, Washington. For information on the availability of
this material at the FAA, call 425-227-1221.

Examining the AD 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 proposed AD, the regulatory
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 FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425)
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2011-0647;
Directorate Identifier 2010-NM-193-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.

Discussion

The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued EASA
Airworthiness Directive 2010-0144, dated July 16, 2010 (referred to
after this as ``the MCAI''), to correct an unsafe condition for the
specified products. The MCAI states:

[[Page 38070]]

confirmed that the defects were the result of de-bonding between the
skin and honeycomb core. Such reworks were also performed on some
rudders fitted on A310 and A300-600 aeroplanes.
An extended de-bonding, if not detected and corrected, may
degrade the structural integrity of the rudder. The loss of the
rudder leads to degradation of the handling qualities and reduces
the controllability of the aeroplane.
To address this unsafe condition EASA issued AD 2010-0002 [which
corresponds to FAA AD 2010-16-13, amendment 39-16390], superseding
[EASA] AD 2009-0166, to require inspections of specific areas and,
depending on findings, the application of corrective actions for
those rudders where production reworks have been identified.
This new [EASA] AD addresses the rudder population that has also
been reworked in production, but not included in the applicability
of EASA AD 2010-0002.

The required actions, for certain rudders, include vacuum loss
inspections and elasticity laminate checker inspections for defects
including de-bonding between the skin and honeycomb core of the rudder.
The corrective action is contacting the FAA or EASA for repair
instructions if any defects are found. For certain other rudders, the
required actions include replacing the rudder with a serviceable
rudder. We are considering similar rulemaking action on Model A319 and
A321 airplanes. You may obtain further information by examining the
MCAI in the AD docket.

Relevant Service Information

Airbus has issued Mandatory Service Bulletins A310-55-2049 and
A300-55-6048, both dated March 16, 2010. The actions described in this
service information are intended to correct the unsafe condition
identified in the MCAI.

FAA's Determination and Requirements of This Proposed AD

This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.

Differences Between This AD and the MCAI or Service Information

We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have proposed different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a NOTE within the proposed AD.

Costs of Compliance

Based on the service information, we estimate that this proposed AD
would affect about 215 products of U.S. registry. We also estimate that
it would take about 4 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Based on these figures, we estimate the cost of the proposed
AD on U.S. operators to be $73,100, or $340 per product.

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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify this proposed
regulation:
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 regulatory evaluation of the estimated costs to
comply with this proposed 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.

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new AD:

Airbus: Docket No. FAA-2011-0647; Directorate Identifier 2010-NM-
193-AD.

Comments Due Date

(a) We must receive comments by August 15, 2011.

Affected ADs

(b) None.

Applicability

(c) This AD applies to Airbus Model A300 B4-601, B4-603, B4-620,
B4-622, B4-605R, B4-622R, F4-605R, F4-622R, and C4-605R Variant F
airplanes; and Model A310-203, -204, -221, -222, -304, -322, -324,
and -325 airplanes; certificated in any category; equipped with
carbon fiber reinforced plastic rudders having any part number and
serial number listed in Table 1, 2, 3, or 4 of this AD.

Table 1--Rudder Information
------------------------------------------------------------------------
Rudder part No. Affected rudder serial No.
------------------------------------------------------------------------
A554-71710-000-00.......................... TS-2010
A554-71710-000-00.......................... TS-2027
A554-71710-000-00.......................... TS-2030
A554-71710-002-00.......................... TS-2043
A554-71710-004-00.......................... TS-2048
------------------------------------------------------------------------

[[Page 38071]]

Table 2--Rudder Information
------------------------------------------------------------------------
Rudder part No. Affected rudder serial No.
------------------------------------------------------------------------
MSN--scrapped.............................. TS-1362
A554-71710-000-00.......................... TS-2006
A554-71710-000-00.......................... TS-2008
A554-71710-002-00.......................... TS-2033
A554-71710-004-00.......................... TS-2054
A554-71710-004-00.......................... TS-2061
A554-71710-004-00.......................... TS-2071
A554-71710-004-00.......................... TS-2072
A554-71710-004-00.......................... TS-2073
A554-71730-000-00-0000..................... TS-2082
A554-71730-000-00-0000..................... TS-2084
A554-71730-000-00-0000..................... TS-2085
A554-71730-000-00-0000..................... TS-2086
A554-71730-000-00-0000..................... TS-2087
------------------------------------------------------------------------

Table 3--Rudder Information
------------------------------------------------------------------------
Rudder part No. Affected rudder serial No.
------------------------------------------------------------------------
A554-71500-016-30.......................... HF-1254
A554-71710-004-00.......................... TS-2049
A554-71710-004-00.......................... TS-2055
A554-71710-004-00.......................... TS-2059
------------------------------------------------------------------------

Table 4--Rudder Information
------------------------------------------------------------------------
Rudder part No. Affected rudder serial No.
------------------------------------------------------------------------
A554-71500-016-91.......................... HF-1044
A554-71500-014-00.......................... HF-1116
A554-71500-016-00.......................... HF-1183
A554-71500-016-00.......................... HF-1184
A554-71500-026-00.......................... TS-1402
------------------------------------------------------------------------

Subject

(d) Air Transport Association (ATA) of America Code 55:
Stabilizers.

Reason

(e) The mandatory continuing airworthiness information (MCAI)
states:

Compliance

(f) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.

Inspections and Corrective Actions for Rudders Identified in Tables 1,
2, and 3

(g) For rudders identified in Table 1 or Table 2 of this AD: Do
the actions specified in paragraph (g)(1) or (g)(2) of this AD, as
applicable, and paragraphs (g)(3) and (g)(4) of this AD, at the time
specified. Do the actions in accordance with the Accomplishment
Instructions of Airbus Mandatory Service Bulletin A310-55-2049 (for
Model A310 series airplanes) or A300-55-6048 (for Model A300-600
series airplanes), both dated March 16, 2010.
(1) For rudders identified in Table 1 of this AD: Within 8
months after the effective date of this AD, perform a vacuum loss
inspection in the ``area 1'' location defined in Airbus Mandatory
Service Bulletin A310-55-2049 or A300-55-6048, both dated March 16,
2010, as applicable, to detect defects, including de-bonding.
(2) For rudders identified in Table 2 of this AD: Within 24
months after the effective date of this AD, perform a vacuum loss
inspection in the ``area 1'' location defined in Airbus Mandatory
Service Bulletin A310-55-2049 or A300-55-6048, both dated March 16,
2010, as applicable, to detect defects, including de-bonding.
(3) Within 24 months after the effective date of this AD: Do an
elasticity laminate checker inspection to detect defects, including
de-bonding, in the trailing edge location.
(4) Repeat the inspection required by paragraph (g)(3) of this
AD two times at intervals not to exceed 4,500 flight cycles, but not
fewer than 4,000 flight cycles from the most recent inspection.
(h) For rudders identified in Table 3 of this AD: Do the actions
specified in paragraphs (h)(1) and (h)(2) of this AD at the time
specified. Do the actions in accordance with the Accomplishment
Instructions of Airbus Mandatory Service Bulletin A310-55-2049 (for
Model A310 series airplanes) or A300-55-6048 (for Model A300-600
series airplanes), both dated March 16, 2010.
(1) Within 4,500 flight cycles after the effective date of this
AD, but not fewer than 4,000 flight cycles from the most recent
elasticity laminate checker inspection: Do an elasticity laminate
checker inspection to detect defects, including de-bonding, in the
trailing edge location.
(2) Repeat the inspection required by paragraph (h)(1) of this
AD one time within 4,500 flight cycles, but not fewer than 4,000
flight cycles from the last inspection.
(i) If any defect is found during any inspection required by
paragraphs (g) and (h) of this AD, before further flight, repair in
accordance with a method approved by the Manager, International
Branch, ANM-116, Transport Airplane Directorate, FAA, or the
European Aviation Safety Agency (EASA) (or its delegated agent).
(j) If no defect is found during the inspections required by
paragraphs (g)(1) and (g)(2) of this AD, before further flight,
restore the vacuum loss holes with the temporary restoration with
self adhesive tape, temporary restoration with resin, or permanent
restoration with resin and surface protection. Do the applicable
actions specified in paragraph (j)(1) or (j)(2) of this AD.
(1) For airplanes on which a temporary restoration with self-
adhesive disks or tapes is done, within 4 months after doing the
restoration, do a detailed inspection for loose or missing self-
adhesive disks or tapes and repeat the inspection thereafter at
intervals not to exceed 4 months until the permanent restoration is
done, in accordance with the Accomplishment Instructions of Airbus
Mandatory Service Bulletin A310-55-2049 (for Model A310 series
airplanes) or A300-55-6048 (for Model A300-600 series airplanes),
both dated March 16, 2010. If any loose or missing self-adhesive
disks or tapes are found during any inspection required by this AD,
before further flight, close the holes, in accordance with the
Accomplishment Instructions of Airbus Mandatory Service Bulletin
A310-55-2049 or A300-55-6048, both dated March 16, 2010, as
applicable. Do the permanent restoration within 4,500 flight cycles
after doing the temporary restoration, in accordance with the
Accomplishment Instructions of Airbus Mandatory Service Bulletin
A310-55-2049 or A300-55-6048, both dated March 16, 2010, as
applicable.
(2) For airplanes on which a temporary restoration with resin is
done: Within 4,500 flight cycles after doing the temporary
restoration do the permanent restoration, in accordance with the
Accomplishment Instructions of Airbus Mandatory Service Bulletin
A310-55-2049 (for Model A310 series airplanes) or A300-55-6048 (for
Model A300-600 series airplanes), both dated March 16, 2010.

Reporting

(k) At the applicable time specified in paragraph (k)(1) or
(k)(2) of this AD: Report the results of each inspection required by
paragraphs (g) and (h) of this AD, including no findings, to Airbus,
as specified in Airbus Mandatory Service Bulletin A310-55-2049 (for
Model A310 series airplanes) or A300-55-6048 (for Model A300-600
series airplanes), both dated March 16, 2010.
(1) Inspections done before the effective date of this AD:
Within 30 days after the effective date of this AD.
(2) Inspections done on or after the effective date of this AD:
Within 30 days after accomplishment of the inspection.

Replacement for Rudders Identified in Table 4

(l) For rudders identified in Table 4 of this AD: Within 8
months after the effective date of this AD, replace the affected
rudder with a serviceable unit, in accordance with a method approved
by the Manager, International Branch, ANM-116, Transport Airplane
Directorate, FAA, or the EASA (or its delegated agent).

Parts Installation

(m) As of the effective date of this AD, no person may install
any rudder identified in Table 1, 2, or 3 of this AD on any
airplane, unless the rudder has been inspected and all applicable
corrective actions have been done in accordance with paragraphs (g),
(h), and (i) of this AD, as applicable.

[[Page 38072]]

(n) As of the effective date of this AD, no person may install
any rudder identified in Table 4 of this AD on any airplane.

FAA AD Differences

Note 1: This AD differs from the MCAI and/or service information
as follows: No differences.

Other FAA AD Provisions

(o) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, FAA, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19. In accordance with 14 CFR 39.19, send your request to your
principal inspector or local Flight Standards District Office, as
appropriate. If sending information directly to the International
Branch, send it to ATTN: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone
(425) 227-2125; fax (425) 227-1149. Information may be e-mailed to:
9-ANM-116-AMOC-REQUESTS@faa.gov. Before using any approved AMOC,
notify your appropriate principal inspector, or lacking a principal
inspector, the manager of the local flight standards district
office/certificate holding district office. The AMOC approval letter
must specifically reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(3) Reporting Requirements: A federal agency may not conduct or
sponsor, and a person is not required to respond to, nor shall a
person be subject to a penalty for failure to comply with a
collection of information subject to the requirements of the
Paperwork Reduction Act unless that collection of information
displays a current valid OMB Control Number. The OMB Control Number
for this information collection is 2120-0056. Public reporting for
this collection of information is estimated to be approximately 5
minutes per response, including the time for reviewing instructions,
completing and reviewing the collection of information. All
responses to this collection of information are mandatory. Comments
concerning the accuracy of this burden and suggestions for reducing
the burden should be directed to the FAA at: 800 Independence Ave.,
SW., Washington, DC 20591, Attn: Information Collection Clearance
Officer, AES-200.

Related Information

(p) Refer to MCAI EASA Airworthiness Directive 2010-0144, dated
July 16, 2010; and Airbus Mandatory Service Bulletins A310-55-2049
and A300-55-6048, both dated March 16, 2010; for related
information.

Issued in Renton, Washington, on June 16, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-16367 Filed 6-28-11; 8:45 am]
BILLING CODE 4910-13-P

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