Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes; Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600); and Model A310 Series Airplanes, 28491-28495 [05-9879]

Download as PDF Federal Register / Vol. 70, No. 95 / Wednesday, May 18, 2005 / Proposed Rules 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 that the 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. See the ADDRESSES section for a location to examine the regulatory evaluation. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the 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 airworthiness directive (AD): Boeing: Docket No. FAA–2005–21236; Directorate Identifier 2005–NM–011–AD. Comments Due Date (a) The Federal Aviation Administration (FAA) must receive comments on this AD action by July 5, 2005. Affected ADs (b) None. Applicability (c) This AD applies to Boeing Model 767– 200, –300, –300F, and –400ER series airplanes; certificated in any category; having line numbers 0001 through 0882 inclusive; equipped with General Electric Model CF6– 80C2 engines. of a thrust reverser, which could cause high roll force and consequent departure from controlled flight. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Modification and Functional Test (f) Within 48 months after the effective date of this AD, perform the actions required by paragraphs (f)(1) and (f)(2) of this AD in accordance with the Accomplishment Instructions of Boeing Service Bulletin 767– 78A0092, Revision 1, dated October 30, 2003 (for Model 767–200, –300, and –300F series airplanes); or Boeing Alert Service Bulletin 767–78A0093, dated May 6, 2004 (for Model 767–400ER series airplanes); as applicable. (1) Modify the relay installation and associated wiring of the engine cowl anti-ice system. (2) Perform a functional test of the thrust reverser system. Concurrent Service Bulletins (g) Prior to or concurrently with the actions required by paragraphs (f)(1) and (f)(2) of this AD, perform the actions required by paragraphs (g)(1) and (g)(2) of this AD in accordance with the Accomplishment Instructions of the applicable service bulletin. (1) For Model 767–200, –300, and –300F series airplanes: Replace the operational program software (OPS) in the left and right engine indication and crew alerting system (EICAS) computers as specified in Boeing Service Bulletin 767–31–0180, dated December 5, 2002. (2) For Model 767–400ER airplanes: Replace the OPS of the large format display system (LFDS) as specified in Boeing Service Bulletin 767–31–0176, dated February 26, 2004. Alternative Methods of Compliance (AMOCs) (h) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Issued in Renton, Washington, on May 9, 2005. Jeffrey E. Duven, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–9872 Filed 5–17–05; 8:45 am] BILLING CODE 4910–13–P Unsafe Condition (d) This AD was prompted by numerous operator reports of failures of the lock flexshaft of the thrust reverser actuation system (TRAS) between the upper actuator and the TRAS lock. We are issuing this AD to prevent high power in-flight deployment VerDate jul<14>2003 18:53 May 17, 2005 Jkt 205001 PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 28491 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2004–19534; Directorate Identifier 2004–NM–99–AD] RIN 2120–AA64 Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes; Model A300 B4–600, B4–600R, and F4– 600R Series Airplanes, and Model C4– 605R Variant F Airplanes (Collectively Called A300–600); and Model A310 Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period. AGENCY: SUMMARY: The FAA is revising an earlier NPRM for an airworthiness directive (AD) that applies to certain Airbus airplane models, as specified above. The original NPRM would have required modifying the thermal insulation system of certain fuselage frames, and modifying the fuselage drainage system. The original NPRM would also have required revising the FAA-approved maintenance inspection program to include inspections for corrosion or cracking in the subject areas. The original NPRM was prompted by reports of corrosion in the lower part of the pressure bulkhead at certain fuselage frames. This action revises the original NPRM by expanding the applicability to include additional airplanes. We are proposing this supplemental NPRM to prevent accumulation of condensation in the insulation blankets of certain fuselage frames, which could cause corrosion that could result in reduced structural integrity of the fuselage and consequent rapid decompression of the airplane. DATES: We must receive comments on this supplemental NPRM by June 13, 2005. Use one of the following addresses to submit comments on this supplemental NPRM. • DOT Docket Web site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, room PL–401, Washington, DC 20590. ADDRESSES: E:\FR\FM\18MYP1.SGM 18MYP1 28492 Federal Register / Vol. 70, No. 95 / Wednesday, May 18, 2005 / Proposed Rules • Fax: (202) 493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. You can examine the contents of this AD docket on the Internet at https:// dms.dot.gov, or in person at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., room PL–401, on the plaza level of the Nassif Building, Washington, DC. This docket number is FAA–2004– 19534; the directorate identifier for this docket is 2004–NM–99–AD. FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, International Branch, ANM–116, FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 227–2125; fax (425) 227–1149. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to submit any relevant written data, views, or arguments regarding this supplemental NPRM. Send your comments to an address listed under ADDRESSES. Include ‘‘Docket No. 2000–FAA–19534; Directorate Identifier 2004–NM–99–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this supplemental NPRM. We will consider all comments received by the closing date and may amend this supplemental NPRM in light of those comments. We will post all comments submitted, without change, to https://dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this supplemental NPRM. Using the search function of our docket Web site, anyone can find and read the comments in any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You can review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78), or you can visit https://dms.dot.gov. Examining the Docket You can examine the AD docket on the Internet at https://dms.dot.gov, or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level in the Nassif Building at the DOT street address stated in ADDRESSES. Comments will be available in the AD docket shortly after the DMS receives them. Discussion We proposed to amend 14 CFR part 39 with a notice of proposed rulemaking (NPRM) for an airworthiness directive (AD) (the ‘‘original NPRM’’). The original NPRM applies to certain Airbus Model A300 B2 and B4 series airplanes; Model A300 B4–600, B4–600R, and F4– 600R series airplanes, and Model A300 C4–605R Variant F airplanes (collectively called A300–600); and Model A310 series airplanes. The original NPRM was published in the Federal Register on November 5, 2004 (69 FR 64530). The original NPRM proposed to require modifying the thermal insulation system of certain fuselage frames, and modifying the fuselage drainage system. That action also proposed to require revising the FAA-approved maintenance inspection program to include inspections for corrosion or cracking in the subject areas. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comments that have been submitted on the original NPRM. Request To Revise Applicability One commenter notes that the applicability statement of the original NPRM excludes airplanes on which Airbus Modification 5946 was done during production. The commenter states that this is incorrect. Airplanes modified in accordance with Airbus Modification 5946 should still be modified in accordance with Airbus Modification 8057. (Airbus Modification 8057 accomplishes the intent of Airbus Service Bulletin A300–53–0201, which would have been required by paragraph (f) of the original NPRM and would be required by this supplemental NPRM.) The commenter points out that the applicability statement should exclude only airplanes on which both Airbus Modifications 5946 and 8057 were done during production. We concur. We inadvertently omitted the reference to Airbus Modification 8057 from the applicability statement of the original NPRM. We have revised paragraph (c), Applicability, in this supplemental NPRM to exclude airplanes on which both Airbus Modifications 5946 and 8057 were done during production. Request To Refer to Other Service Bulletin Revisions One commenter, the airplane manufacturer, notes that the original NPRM does not identify certain revisions of the referenced service bulletins that should be acceptable for compliance with the proposed actions. Paragraph (f) of the original NPRM refers to Airbus Service Bulletins A300– 21–0116, Revision 02, dated June 13, 2003; A300–21–6025, Revision 01, dated June 13, 2003; A310–21–2041, Revision 02, dated June 13, 2003; and A300–53–0201, Revision 04, dated May 2, 2003; as applicable sources of service information for certain actions required by that paragraph. The commenter observes that referencing additional service bulletin revisions would eliminate the need for operators to request an alternative method of compliance (AMOC). This table lists the additional service bulletins that the commenter suggests be included: ADDITIONAL SERVICE BULLETINS Models Airbus service bulletin A300 B2 and B4 series ........................................................................ A300 B2 and B4 series ........................................................................ A300–600 ............................................................................................. A310 series ........................................................................................... A310 series ........................................................................................... A300 B2 and B4 series ........................................................................ A300–21–116 ............................... A300–21–0116 ............................. A300–21–6025 ............................. A310–21–2041 ............................. A310–21–2041 ............................. A300–53–0201 ............................. VerDate jul<14>2003 18:53 May 17, 2005 Jkt 205001 PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 E:\FR\FM\18MYP1.SGM Revision level 18MYP1 1 03 02 1 03 05 Date March 24, 1992. January 29, 2004. January 29, 2004. December 10, 1990. January 29, 2004. July 15, 2004. 28493 Federal Register / Vol. 70, No. 95 / Wednesday, May 18, 2005 / Proposed Rules Another commenter requests that we revise paragraph (g) of the original NPRM to give credit for modifications to the fuselage drainage system that were accomplished before the effective date of the AD in accordance with Airbus Service Bulletin A300–53–6008, Revision 02, dated August 10, 1989. (For Model A300–600 airplanes, paragraph (g) of the original NPRM gives credit for modifications done in accordance with the latest issues of the referenced service bulletins as the appropriate source of service information for the actions proposed by that paragraph. We have also revised paragraph (g) of this supplemental NPRM to give credit for actions accomplished previously in accordance with the service bulletins listed in the table below. Airbus Service Bulletin A300–53–6008, Revision 03, dated November 6, 1990; or Revision 04, dated April 28, 2003.) The commenter states that no technical changes to the drainage system in the area of fuselage frames 39 and 54 were made to Revision 02 of the service bulletin or later revisions. We concur with the commenters’ requests. We have revised paragraph (f) of this supplemental NPRM to refer to SERVICE BULLETINS FOR WHICH WE GIVE CREDIT Revision level Models— Airbus service bulletin— A300 B2 and B4 series ........................................................................ A300 B2 and B4 series ........................................................................ A300 B2 and B4 series ........................................................................ A300–600 ............................................................................................. A300–600 ............................................................................................. A300–600 ............................................................................................. A300–600 ............................................................................................. A310 series ........................................................................................... A310 series ........................................................................................... A310 series ........................................................................................... A310 series ........................................................................................... A300–21–116 ............................... A300–21–0116 ............................. A300–53–0201 ............................. A300–21–6025 ............................. A300–53–6008 ............................. A300–53–6008 ............................. A300–53–6008 ............................. A310–21–2041 ............................. A310–21–2041 ............................. A310–53–2027 ............................. A310–53–2027 ............................. Request To Revise Airbus Maintenance Planning Document (MPD) Reference Two commenters request that we revise paragraph (h) of the original NPRM to correct references to certain tasks in the Airbus MPD. One commenter states that Task Number 541531–01–1 does not exist. The commenter states that the correct reference is to MPD Task Number 531531–01–1, which describes detailed inspections of the lower bulkhead at frame 39. Another commenter notes that there is a reference in the same Date 1 02 04 01 02 03 04 1 02 02 03 March 24, 1992. June 13, 2003. May 2, 2003. June 13, 2003. August 10, 1989. November 6, 1990. April 28, 2003. December 10, 1990. June 13, 2003. November 6, 1990. May 2, 2003. scope of the original NPRM; therefore, we have determined that it is necessary to reopen the comment period to provide additional opportunity for public comment on this supplemental NPRM. paragraph to MPD Task Number 538295–0603–01. The commenter states that the correct reference is to MPD Task Number 538295–0603–1. We concur with the commenter’s request. The incorrect references were typographical errors. We have revised paragraph (h) of this supplemental NPRM accordingly. Costs of Compliance The following table provides the estimated costs for U.S. operators to comply with this proposed AD, at an average labor rate of $65 per work hour. FAA’s Determination and Proposed Requirements of the Supplemental NPRM The change to the applicability statement discussed above expands the ESTIMATED COSTS Modifying the Thermal Insulation System. Modifying the Thermal Insulation System. A300 B2/B4 .................................. 5 $567 $892 23 $20,516 A300 B4–600, B4–600R, and F4– 600R series; and A300 C4– 605R Variant F (collectively called A300–600). A310 ............................................. 4 567 827 116 95,932 4 567 827 47 38,869 A300 B2/B4 .................................. 38 1,857 4,327 23 99,521 A300 B4–600, B4–600R, and F4– 600R series; and A300 C4– 605R Variant F (collectively called A300–600). A310 ............................................. 36 1,378 3,718 116 431,288 27 1,451 3,206 47 150,682 All .................................................. 1 None 65 186 12,090 Modifying the Fuselage Drainage System. Maintenance Program Revision ... VerDate jul<14>2003 18:53 May 17, 2005 Jkt 205001 PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 Parts Number of U.S.-registered airplanes Models Modifying the Thermal Insulation System. Modifying the Fuselage Drainage System. Modifying the Fuselage Drainage System. Work hours Cost per airplane Action E:\FR\FM\18MYP1.SGM 18MYP1 Fleet cost 28494 Federal Register / Vol. 70, No. 95 / Wednesday, May 18, 2005 / Proposed Rules 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 supplemental NPRM. See the ADDRESSES section for a location to examine the regulatory evaluation. 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. Affected ADs List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. Authority for This Rulemaking Unsafe Condition 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 Regulatory Findings Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 Applicability (c) This AD applies to Airbus Model A300 B2 and B4 series airplanes; Model A300 B4– 600, B4–600R, and F4–600R series airplanes, and C4–605R Variant F airplanes (collectively called A300–600); and A310 series airplanes; certificated in any category; except those on which both Airbus Modifications 5946 and 8057 were done during production. (d) This AD was prompted by reports of corrosion in the lower part of the pressure bulkhead at fuselage frames (FR) 39 and 54. We are issuing this AD to prevent accumulation of condensation in the insulation blankets of certain fuselage FRs, which could cause corrosion that could result in reduced structural integrity of the fuselage and consequent rapid decompression of the airplane. Compliance 1. The authority citation for part 39 continues to read as follows: We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that the proposed regulation: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; (b) None. [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): Airbus: Docket No. FAA–2004–19534; Directorate Identifier 2004–NM–99–AD. Comments Due Date (a) The Federal Aviation Administration must receive comments on this AD action by June 13, 2005. (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Modification of Thermal Insulation and Fuselage Drainage Systems (f) Within 22 months after the effective date of this AD, modify the thermal insulation system of applicable fuselage frames and modify the fuselage drainage system, by doing all actions in the Accomplishment Instructions of the applicable service bulletins specified in Table 1 of this AD. TABLE 1.—RELEVANT SERVICE BULLETINS For Airbus models— Modify the thermal insulation according to Airbus Service Bulletin— And modify the fuselage drainage system according to Airbus Service Bulletin— A300 B2 and B4 series ...................................... A300–21–0116, Revision 03, dated January 29, 2004. A300–21–6025, Revision 02, dated January 29, 2004. A300–53–0201, Revision 05, dated July 15, 2004. A300–53–6008, Revision 05, dated July 15, 2004. A310–21–2041, Revision 03, dated January 29, 2004. A310–53–2027, Revision 04, dated July 15, 2004. A300 B4–600, B4–600R, and F4–600R series; and A300 C4–605R Variant F (collectively called A300–600). A310 series ........................................................ Modifications Accomplished According to Previous Issues of Service Bulletins (g) Modifications accomplished before the effective date of this AD according to the service bulletins listed in Table 2 are considered acceptable for compliance with the corresponding action specified in paragraph (f) of this AD. TABLE 2.—ADDITIONAL SERVICE BULLETINS Airbus Service Bulletin Models A300 B2 and B4 series ................................................................................................. A300 B2 and B4 series ................................................................................................. A300 B2 and B4 series ................................................................................................. A300–600 ....................................................................................................................... A300–600 ....................................................................................................................... VerDate jul<14>2003 18:53 May 17, 2005 Jkt 205001 PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 Revision A300–21–116 A300–21–0116 A300–53–0201 A300–21–6025 A300–53–6008 E:\FR\FM\18MYP1.SGM 18MYP1 1 02 04 01 02 Date level March 24, 1992. June 13, 2003. May 2, 2003. June 13, 2003. August 10, 1989. Federal Register / Vol. 70, No. 95 / Wednesday, May 18, 2005 / Proposed Rules 28495 TABLE 2.—ADDITIONAL SERVICE BULLETINS—Continued Airbus Service Bulletin Models A300–600 ....................................................................................................................... A300–600 ....................................................................................................................... A310 series .................................................................................................................... A310 series .................................................................................................................... A310 series .................................................................................................................... A310 series .................................................................................................................... Maintenance Program Revision (h) Within 90 days after doing the actions required by paragraph (f) of this AD, or within 90 days after the effective date of this AD, whichever is later: Incorporate into the FAA-approved maintenance inspection program repetitive detailed inspections for corrosion or cracking of fuselage structure from FR 38.2 to 39, and at FR 54, as applicable, as described in Airbus Maintenance Planning Document Task Numbers 538295–0603–1 (for Airbus Model A300 B2 and B4 series airplanes), and 531531–01–1 and 531533–01–1 (for Airbus Model A300 B4–600, B4–600R, and F4–600R series airplanes, and C4–605R Variant F airplanes (collectively called A300–600); and Model A310 series airplanes). Then, thereafter, comply with the applicable requirements. Note 1: For the purposes of this AD, a detailed inspection is: ‘‘An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.’’ Alternative Methods of Compliance (AMOCs) (i) The Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Related Information (j) French airworthiness directive 2003– 317(B), dated August 20, 2003, also addresses the subject of this AD. Issued in Renton, Washington, on May 11, 2005. Jeffrey E. Duven, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–9879 Filed 5–17–05; 8:45 am] BILLING CODE 4910–13–P VerDate jul<14>2003 18:53 May 17, 2005 Jkt 205001 A300–53–6008 A300–53–6008 A310–21–2041 A310–21–2041 A310–53–2027 A310–53–2027 ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [R04–OAR–2005–NC–0001–200503; FRL– 7914–6] Approval and Promulgation of Implementation Plans—North Carolina: Approval of Revisions to the Visible Emissions Rule Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: SUMMARY: EPA is proposing to approve the Visible Emissions portion of a State Implementation Plan (SIP) revision submitted to EPA, by the State of North Carolina, on December 14, 2004. EPA is proposing to approve the Visible Emissions Rule, in its entirety, as submitted December 14, 2004, and does not intend to act on previous versions of the rule. DATES: Written comments must be received on or before June 17, 2005. ADDRESSES: Submit your comments, identified by R04–OAR–2005–NC–0001, by one of the following methods: 1. Federal eRulemaking Portal: https://www.regulations.gov. Follow the on-line instructions for submitting comments. 2. E-mail: spann.jane@epa.gov. 3. Fax: 404–562–9019. 4. Mail: ‘‘R04–OAR–2005–NC–0001’’, Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303–8960. 5. Hand Delivery: Deliver your comments to: Jane Spann, Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division 12th floor, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303–8960. Such deliveries are only accepted during the Regional Office’s normal hours of operation. The Regional Office’s official hours of business are Monday through PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 Revision 03 04 1 02 02 03 Date level November 6, 1990. April 28, 2003. December 10, 1990. June 13, 2003. November 6, 1990. May 2, 2003. Friday, 8:30 to 4:30, excluding federal holidays. Instructions: Direct your comments to R04–OAR–2005–NC–0001. EPA’s policy is that all comments received will be included in the public docket without change, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through regulations.gov, or email. The federal regulations.gov Web site is an ‘‘anonymous access’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through regulations.gov, your e-mail address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD–ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. Docket: Some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Publicly available docket materials are available in hard copy at the Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, U.S. Environmental Protection Agency, Region 4, 61 Forsyth Street, SW., Atlanta, Georgia 30303–8960. EPA requests that if at all possible, you contact the contact listed in the FOR FURTHER INFORMATION CONTACT section to schedule your inspection. The Regional Office’s official hours of business are E:\FR\FM\18MYP1.SGM 18MYP1

Agencies

[Federal Register Volume 70, Number 95 (Wednesday, May 18, 2005)]
[Proposed Rules]
[Pages 28491-28495]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-9879]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-19534; Directorate Identifier 2004-NM-99-AD]
RIN 2120-AA64

Airworthiness Directives; Airbus Model A300 B2 and B4 Series
Airplanes; Model A300 B4-600, B4-600R, and F4-600R Series Airplanes,
and Model C4-605R Variant F Airplanes (Collectively Called A300-600);
and Model A310 Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of
comment period.

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

SUMMARY: The FAA is revising an earlier NPRM for an airworthiness
directive (AD) that applies to certain Airbus airplane models, as
specified above. The original NPRM would have required modifying the
thermal insulation system of certain fuselage frames, and modifying the
fuselage drainage system. The original NPRM would also have required
revising the FAA-approved maintenance inspection program to include
inspections for corrosion or cracking in the subject areas. The
original NPRM was prompted by reports of corrosion in the lower part of
the pressure bulkhead at certain fuselage frames. This action revises
the original NPRM by expanding the applicability to include additional
airplanes. We are proposing this supplemental NPRM to prevent
accumulation of condensation in the insulation blankets of certain
fuselage frames, which could cause corrosion that could result in
reduced structural integrity of the fuselage and consequent rapid
decompression of the airplane.

DATES: We must receive comments on this supplemental NPRM by June 13,
2005.

ADDRESSES: Use one of the following addresses to submit comments on
this supplemental NPRM.
DOT Docket Web site: Go to https://dms.dot.gov and follow
the instructions for sending your comments electronically.
Government-wide rulemaking Web site: Go to https://
www.regulations.gov and follow the instructions for sending your
comments electronically.
Mail: Docket Management Facility; U.S. Department of
Transportation, 400 Seventh Street, SW., Nassif Building, room PL-401,
Washington, DC 20590.

[[Page 28492]]

Fax: (202) 493-2251.
Hand Delivery: Room PL-401 on the plaza level of the
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this proposed AD, contact
Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France.
You can examine the contents of this AD docket on the Internet at
https://dms.dot.gov, or in person at the Docket Management Facility,
U.S. Department of Transportation, 400 Seventh Street, SW., room PL-
401, on the plaza level of the Nassif Building, Washington, DC. This
docket number is FAA-2004-19534; the directorate identifier for this
docket is 2004-NM-99-AD.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to submit any relevant written data, views, or
arguments regarding this supplemental NPRM. Send your comments to an
address listed under ADDRESSES. Include ``Docket No. 2000-FAA-19534;
Directorate Identifier 2004-NM-99-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this supplemental NPRM.
We will consider all comments received by the closing date and may
amend this supplemental NPRM in light of those comments.
We will post all comments submitted, without change, to https://
dms.dot.gov, including any personal information you provide. We will
also post a report summarizing each substantive verbal contact with FAA
personnel concerning this supplemental NPRM. Using the search function
of our docket Web site, anyone can find and read the comments in any of
our dockets, including the name of the individual who sent the comment
(or signed the comment on behalf of an association, business, labor
union, etc.). You can review the DOT's complete Privacy Act Statement
in the Federal Register published on April 11, 2000 (65 FR 19477-78),
or you can visit https://dms.dot.gov.

Examining the Docket

You can examine the AD docket on the Internet at https://
dms.dot.gov, or in person at the Docket Management Facility office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level in the Nassif Building at the DOT
street address stated in ADDRESSES. Comments will be available in the
AD docket shortly after the DMS receives them.

Discussion

We proposed to amend 14 CFR part 39 with a notice of proposed
rulemaking (NPRM) for an airworthiness directive (AD) (the ``original
NPRM''). The original NPRM applies to certain Airbus Model A300 B2 and
B4 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series
airplanes, and Model A300 C4-605R Variant F airplanes (collectively
called A300-600); and Model A310 series airplanes. The original NPRM
was published in the Federal Register on November 5, 2004 (69 FR
64530). The original NPRM proposed to require modifying the thermal
insulation system of certain fuselage frames, and modifying the
fuselage drainage system. That action also proposed to require revising
the FAA-approved maintenance inspection program to include inspections
for corrosion or cracking in the subject areas.

Comments

We provided the public the opportunity to participate in the
development of this AD. We have considered the comments that have been
submitted on the original NPRM.

Request To Revise Applicability

One commenter notes that the applicability statement of the
original NPRM excludes airplanes on which Airbus Modification 5946 was
done during production. The commenter states that this is incorrect.
Airplanes modified in accordance with Airbus Modification 5946 should
still be modified in accordance with Airbus Modification 8057. (Airbus
Modification 8057 accomplishes the intent of Airbus Service Bulletin
A300-53-0201, which would have been required by paragraph (f) of the
original NPRM and would be required by this supplemental NPRM.) The
commenter points out that the applicability statement should exclude
only airplanes on which both Airbus Modifications 5946 and 8057 were
done during production.
We concur. We inadvertently omitted the reference to Airbus
Modification 8057 from the applicability statement of the original
NPRM. We have revised paragraph (c), Applicability, in this
supplemental NPRM to exclude airplanes on which both Airbus
Modifications 5946 and 8057 were done during production.

Request To Refer to Other Service Bulletin Revisions

One commenter, the airplane manufacturer, notes that the original
NPRM does not identify certain revisions of the referenced service
bulletins that should be acceptable for compliance with the proposed
actions. Paragraph (f) of the original NPRM refers to Airbus Service
Bulletins A300-21-0116, Revision 02, dated June 13, 2003; A300-21-6025,
Revision 01, dated June 13, 2003; A310-21-2041, Revision 02, dated June
13, 2003; and A300-53-0201, Revision 04, dated May 2, 2003; as
applicable sources of service information for certain actions required
by that paragraph. The commenter observes that referencing additional
service bulletin revisions would eliminate the need for operators to
request an alternative method of compliance (AMOC). This table lists
the additional service bulletins that the commenter suggests be
included:

Additional Service Bulletins
----------------------------------------------------------------------------------------------------------------
Revision
Models Airbus service bulletin level Date
----------------------------------------------------------------------------------------------------------------
A300 B2 and B4 series................ A300-21-116............. 1 March 24, 1992.
A300 B2 and B4 series................ A300-21-0116............ 03 January 29, 2004.
A300-600............................. A300-21-6025............ 02 January 29, 2004.
A310 series.......................... A310-21-2041............ 1 December 10, 1990.
A310 series.......................... A310-21-2041............ 03 January 29, 2004.
A300 B2 and B4 series................ A300-53-0201............ 05 July 15, 2004.
----------------------------------------------------------------------------------------------------------------

[[Page 28493]]

Another commenter requests that we revise paragraph (g) of the
original NPRM to give credit for modifications to the fuselage drainage
system that were accomplished before the effective date of the AD in
accordance with Airbus Service Bulletin A300-53-6008, Revision 02,
dated August 10, 1989. (For Model A300-600 airplanes, paragraph (g) of
the original NPRM gives credit for modifications done in accordance
with Airbus Service Bulletin A300-53-6008, Revision 03, dated November
6, 1990; or Revision 04, dated April 28, 2003.) The commenter states
that no technical changes to the drainage system in the area of
fuselage frames 39 and 54 were made to Revision 02 of the service
bulletin or later revisions.
We concur with the commenters' requests. We have revised paragraph
(f) of this supplemental NPRM to refer to the latest issues of the
referenced service bulletins as the appropriate source of service
information for the actions proposed by that paragraph. We have also
revised paragraph (g) of this supplemental NPRM to give credit for
actions accomplished previously in accordance with the service
bulletins listed in the table below.

Service Bulletins For Which We Give Credit
----------------------------------------------------------------------------------------------------------------
Airbus service bulletin-- Revision
Models-- level Date
----------------------------------------------------------------------------------------------------------------
A300 B2 and B4 series................ A300-21-116............. 1 March 24, 1992.
A300 B2 and B4 series................ A300-21-0116............ 02 June 13, 2003.
A300 B2 and B4 series................ A300-53-0201............ 04 May 2, 2003.
A300-600............................. A300-21-6025............ 01 June 13, 2003.
A300-600............................. A300-53-6008............ 02 August 10, 1989.
A300-600............................. A300-53-6008............ 03 November 6, 1990.
A300-600............................. A300-53-6008............ 04 April 28, 2003.
A310 series.......................... A310-21-2041............ 1 December 10, 1990.
A310 series.......................... A310-21-2041............ 02 June 13, 2003.
A310 series.......................... A310-53-2027............ 02 November 6, 1990.
A310 series.......................... A310-53-2027............ 03 May 2, 2003.
----------------------------------------------------------------------------------------------------------------

Request To Revise Airbus Maintenance Planning Document (MPD) Reference

Two commenters request that we revise paragraph (h) of the original
NPRM to correct references to certain tasks in the Airbus MPD. One
commenter states that Task Number 541531-01-1 does not exist. The
commenter states that the correct reference is to MPD Task Number
531531-01-1, which describes detailed inspections of the lower bulkhead
at frame 39. Another commenter notes that there is a reference in the
same paragraph to MPD Task Number 538295-0603-01. The commenter states
that the correct reference is to MPD Task Number 538295-0603-1.
We concur with the commenter's request. The incorrect references
were typographical errors. We have revised paragraph (h) of this
supplemental NPRM accordingly.

FAA's Determination and Proposed Requirements of the Supplemental NPRM

The change to the applicability statement discussed above expands
the scope of the original NPRM; therefore, we have determined that it
is necessary to reopen the comment period to provide additional
opportunity for public comment on this supplemental NPRM.

Costs of Compliance

The following table provides the estimated costs for U.S. operators
to comply with this proposed AD, at an average labor rate of $65 per
work hour.

Estimated Costs
----------------------------------------------------------------------------------------------------------------
Number of
Cost per U.S.-
Action Models Work hours Parts airplane registered Fleet cost
airplanes
----------------------------------------------------------------------------------------------------------------
Modifying the Thermal A300 B2/B4...... 5 $567 $892 23 $20,516
Insulation System.
Modifying the Thermal A300 B4-600, B4- 4 567 827 116 95,932
Insulation System. 600R, and F4-
600R series;
and A300 C4-
605R Variant F
(collectively
called A300-
600).
Modifying the Thermal A310............ 4 567 827 47 38,869
Insulation System.
Modifying the Fuselage A300 B2/B4...... 38 1,857 4,327 23 99,521
Drainage System.
Modifying the Fuselage A300 B4-600, B4- 36 1,378 3,718 116 431,288
Drainage System. 600R, and F4-
600R series;
and A300 C4-
605R Variant F
(collectively
called A300-
600).
Modifying the Fuselage A310............ 27 1,451 3,206 47 150,682
Drainage System.
Maintenance Program Revision. All............. 1 None 65 186 12,090
----------------------------------------------------------------------------------------------------------------

[[Page 28494]]

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 have determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would not
have a substantial direct effect on the States, on the relationship
between the national Government and the States, or on the distribution
of power and responsibilities among the various levels of government.
For the reasons discussed above, I certify that the 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 supplemental NPRM. See the ADDRESSES section for a
location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

Accordingly, under the authority delegated to me by the
Administrator, the 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
airworthiness directive (AD):

Airbus: Docket No. FAA-2004-19534; Directorate Identifier 2004-NM-
99-AD.

Comments Due Date

(a) The Federal Aviation Administration must receive comments on
this AD action by June 13, 2005.

Affected ADs

(b) None.

Applicability

(c) This AD applies to Airbus Model A300 B2 and B4 series
airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes,
and C4-605R Variant F airplanes (collectively called A300-600); and
A310 series airplanes; certificated in any category; except those on
which both Airbus Modifications 5946 and 8057 were done during
production.

Unsafe Condition

(d) This AD was prompted by reports of corrosion in the lower
part of the pressure bulkhead at fuselage frames (FR) 39 and 54. We
are issuing this AD to prevent accumulation of condensation in the
insulation blankets of certain fuselage FRs, which could cause
corrosion that could result in reduced structural integrity of the
fuselage and consequent rapid decompression of the airplane.

Compliance

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

Modification of Thermal Insulation and Fuselage Drainage Systems

(f) Within 22 months after the effective date of this AD, modify
the thermal insulation system of applicable fuselage frames and
modify the fuselage drainage system, by doing all actions in the
Accomplishment Instructions of the applicable service bulletins
specified in Table 1 of this AD.

Table 1.--Relevant Service Bulletins
------------------------------------------------------------------------
And modify the
Modify the thermal fuselage drainage
For Airbus models-- insulation according system according to
to Airbus Service Airbus Service
Bulletin-- Bulletin--
------------------------------------------------------------------------
A300 B2 and B4 series....... A300-21-0116, A300-53-0201,
Revision 03, dated Revision 05, dated
January 29, 2004. July 15, 2004.
A300 B4-600, B4-600R, and F4- A300-21-6025, A300-53-6008,
600R series; and A300 C4- Revision 02, dated Revision 05, dated
605R Variant F January 29, 2004. July 15, 2004.
(collectively called A300-
600).
A310 series................. A310-21-2041, A310-53-2027,
Revision 03, dated Revision 04, dated
January 29, 2004. July 15, 2004.
------------------------------------------------------------------------

Modifications Accomplished According to Previous Issues of Service
Bulletins

(g) Modifications accomplished before the effective date of this
AD according to the service bulletins listed in Table 2 are
considered acceptable for compliance with the corresponding action
specified in paragraph (f) of this AD.

Table 2.--Additional Service Bulletins
----------------------------------------------------------------------------------------------------------------
Airbus Service
Models Bulletin Revision Date level
----------------------------------------------------------------------------------------------------------------
A300 B2 and B4 series................... A300-21-116 1 March 24, 1992.
A300 B2 and B4 series................... A300-21-0116 02 June 13, 2003.
A300 B2 and B4 series................... A300-53-0201 04 May 2, 2003.
A300-600................................ A300-21-6025 01 June 13, 2003.
A300-600................................ A300-53-6008 02 August 10, 1989.

[[Page 28495]]

A300-600................................ A300-53-6008 03 November 6, 1990.
A300-600................................ A300-53-6008 04 April 28, 2003.
A310 series............................. A310-21-2041 1 December 10, 1990.
A310 series............................. A310-21-2041 02 June 13, 2003.
A310 series............................. A310-53-2027 02 November 6, 1990.
A310 series............................. A310-53-2027 03 May 2, 2003.
----------------------------------------------------------------------------------------------------------------

Maintenance Program Revision

(h) Within 90 days after doing the actions required by paragraph
(f) of this AD, or within 90 days after the effective date of this
AD, whichever is later: Incorporate into the FAA-approved
maintenance inspection program repetitive detailed inspections for
corrosion or cracking of fuselage structure from FR 38.2 to 39, and
at FR 54, as applicable, as described in Airbus Maintenance Planning
Document Task Numbers 538295-0603-1 (for Airbus Model A300 B2 and B4
series airplanes), and 531531-01-1 and 531533-01-1 (for Airbus Model
A300 B4-600, B4-600R, and F4-600R series airplanes, and C4-605R
Variant F airplanes (collectively called A300-600); and Model A310
series airplanes). Then, thereafter, comply with the applicable
requirements.

Note 1: For the purposes of this AD, a detailed inspection is:
``An intensive examination of a specific item, installation, or
assembly to detect damage, failure, or irregularity. Available
lighting is normally supplemented with a direct source of good
lighting at an intensity deemed appropriate. Inspection aids such as
mirror, magnifying lenses, etc., may be necessary. Surface cleaning
and elaborate procedures may be required.''

Alternative Methods of Compliance (AMOCs)

(i) The Manager, International Branch, ANM-116, Transport
Airplane Directorate, FAA, has the authority to approve AMOCs for
this AD, if requested in accordance with the procedures found in 14
CFR 39.19.

Related Information

(j) French airworthiness directive 2003-317(B), dated August 20,
2003, also addresses the subject of this AD.

Issued in Renton, Washington, on May 11, 2005.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-9879 Filed 5-17-05; 8:45 am]
BILLING CODE 4910-13-P

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