Airworthiness Directives; Boeing Model 767-300 and -300F Series Airplanes, 42008-42010 [05-14395]

Download as PDF 42008 Federal Register / Vol. 70, No. 139 / Thursday, July 21, 2005 / Proposed Rules 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. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing amendment 39–12383 (66 FR 42939, August 16, 2001), and adding the following new airworthiness directive (AD): Airbus: Docket No. FAA–2004–19863; Directorate Identifier 2003–NM–29–AD. Comments Due Date (a) The Federal Aviation Administration must receive comments on this AD action by August 15, 2005. Affected ADs (b) This AD supersedes AD 2001–16–14, amendment 39–12383 (66 FR 42939, August 16, 2001). VerDate jul<14>2003 18:14 Jul 20, 2005 Jkt 205001 Applicability (c) This AD applies to Airbus Model A319– 100, A320–200, and A321–100 and –200 series airplanes; certificated in any category; equipped with telescopic girt bars of the escape slide/raft assembly installed per Airbus Modification 20234, or Airbus Service Bulletin A320–25–1055 or A320–25–1218 in service; except those airplanes with Airbus Modification 31708. Unsafe Condition (d) This AD was prompted by development of a new, improved modification of the telescopic girt bar of the escape slide/raft assembly. We are issuing this AD to prevent failure of the escape slide/raft to deploy correctly, which could result in the slide being unusable during an emergency evacuation and consequent injury to passengers or airplane crewmembers. 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. Restatement of Requirements of AD 2001– 16–14 Modification/Follow-On Actions (f) For airplanes listed in Airbus Industrie All Operators Telex A320–52A1111, Revision 01, dated July 23, 2001: Within 1,500 flight hours after August 31, 2001 (the effective date of AD 2001–16–14); except as provided by paragraph (h) of this AD, modify the telescopic girt bar of the escape slide/raft assembly installed on all passenger and crew doors and do a functional test to ensure the girt bar does not retract, per Airbus Industrie AOT A320–52A1111, Revision 01, dated July 23, 2001. (1) If the girt bar retracts, before further flight, replace any discrepant parts and do another functional test to ensure the girt bar does not retract, per the AOT. Repeat the functional test thereafter at intervals not to exceed 18 months until paragraph (g) of this AD is accomplished. (2) If the girt bar does not retract, repeat the functional test thereafter at intervals not to exceed 18 months. Note 1: Modification and follow-on actions accomplished prior to the effective date of this AD per Airbus Industrie AOT A320– 52A1111, dated July 5, 2001, are considered acceptable for compliance with the applicable actions specified in this amendment. (2) Install a placard on each modified girt bar. (h) For airplanes on which the modification of the telescopic girt bar required by paragraph (g)(1) of this AD is accomplished within the compliance time specified in paragraph (f) of this AD, accomplishing the modification required by paragraph (f) is not required. Modifications Accomplished According to Previous Issues of Service Bulletin (i) Modification of the telescopic girt bar accomplished before the effective date of this AD in accordance with Airbus Service Bulletin A320–52–1112, dated January 16, 2002; Revision 01, dated April 3, 2002; Revision 02, dated September 6, 2002; Revision 03, dated June 27, 2003; or Revision 04, dated November 12, 2003; is considered acceptable for compliance with the modification of the telescopic girt bar required by paragraph (g)(1) of this AD. Parts Installation (j) As of the effective date of this AD, no person may install on any airplane a telescopic girt bar of the escape slide/raft assembly unless it has been modified as required by paragraph (g) of this AD. Alternative Methods of Compliance (AMOCs) (k)(1) The Manager, International Branch, Transport Airplane Directorate, ANM–116, FAA, has the authority to approve alternative methods of compliance (AMOCs) for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) AMOCs approved previously in accordance with AD 2001–16–14, amendment 39–12383, are approved as AMOCs with paragraph (f) of this AD. Related Information (l) French airworthiness directives 2002– 637(B) R1, dated April 16, 2003, and F–2005– 057, dated April 13, 2005, also address the subject of this AD. Issued in Renton, Washington, on July 14, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–14394 Filed 7–20–05; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration New Requirements of This AD Modification (g) Within 20 months after the effective date of this AD: Accomplish the actions specified in paragraphs (g)(1) and (g)(2) of this AD by doing all the applicable actions specified in the Accomplishment Instructions of Airbus Service Bulletin A320– 52–1112, Revision 05, dated June 25, 2004. Accomplishing these actions terminates the repetitive functional tests required by paragraph (f) of this AD. (1) Modify the telescopic girt bar of the escape slide/raft assembly. PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 14 CFR Part 39 [Docket No. FAA–2005–21880; Directorate Identifier 2004–NM–216–AD] RIN 2120–AA64 Airworthiness Directives; Boeing Model 767–300 and –300F Series Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). AGENCY: E:\FR\FM\21JYP1.SGM 21JYP1 Federal Register / Vol. 70, No. 139 / Thursday, July 21, 2005 / Proposed Rules Notice of proposed rulemaking (NPRM). ACTION: The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 767–300 and –300F series airplanes. This proposed AD would require a one-time operational test of the pilots’ seat locks and the seat tracks to ensure that the seats lock in position and the seat tracks are aligned correctly; and re-alignment of the seat tracks, if necessary. This proposed AD is prompted by reports indicating that a pilot’s seat slid from the forward to the aft-most position during acceleration and take-off. We are proposing this AD to prevent uncommanded movement of the pilots’ seats during acceleration and take-off of the airplane, and consequent reduced controllability of the airplane. DATES: We must receive comments on this proposed AD by September 6, 2005. ADDRESSES: Use one of the following addresses to submit comments on this proposed AD. • DOT Docket Web site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking web site: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Nassif Building, room PL–401, Washington, DC 20590. • By 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 Boeing Commercial Airplanes, PO Box 3707, Seattle, Washington 98124–2207. 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–2005– 21880; the directorate identifier for this docket is 2004–NM–216–AD. FOR FURTHER INFORMATION CONTACT: Sue Rosanske, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 917–6448; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: SUMMARY: VerDate jul<14>2003 18:14 Jul 20, 2005 Jkt 205001 Comments Invited We invite you to submit any relevant written data, views, or arguments regarding this proposed AD. Send your comments to an address listed under ADDRESSES. Include ‘‘Docket No. FAA– 2005–21880; Directorate Identifier 2004–NM–216–AD’’ in the subject line of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments submitted by the closing date and may amend the proposed AD in light of those comments. We will post all comments we receive, without change, to https:// dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed AD. Using the search function of that 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 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 of the Nassif Building at the DOT street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after the Docket Management System (DMS) receives them. Discussion We have received reports indicating that the pilot’s seat slid from the forward to the aft-most position during acceleration and take-off on a Model 737 series airplane. Investigation revealed that the seat track was aligned incorrectly. Misalignment of the seat tracks can occur when seat tracks have been reinstalled or replaced without fully testing the seat lock mechanism. Misalignment of the seat tracks, if not corrected, could result in uncommanded movement of the pilots’ seats during acceleration and take-off of PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 42009 the airplane, and consequent reduced controllability of the airplane. The pilot seat locks and tracks on certain Model 737 series airplanes are identical to those on the affected Model 767–300 and –300F series airplanes. Therefore, Model 767–300 and –300F series airplanes may be subject to the same unsafe condition. Other Related Rulemaking On January 27, 1998, we issued AD 98–03–10, amendment 39–10302 (63 FR 5725, February 4, 1998), applicable to certain Boeing Model 737, 747, 757, and 767 series airplanes. AD 98–03–10 requires a one-time operational test of the pilots’ seat locks and the seat tracks to ensure that the seats lock in position and the seat tracks are aligned correctly; and re-alignment of the seat tracks, if necessary. We issued AD 98–03–10 to prevent uncommanded movement of the pilots’ seats during acceleration and take-off of the airplane, and consequent reduced controllability of the airplane. Since we issued AD 98–03–10, Boeing has issued Special Attention Service Bulletin 767–25–0244, Revision 2, dated September 2, 2004. Revision 2 adds five Model 767–300 and –300F series airplanes (variable numbers VK145, VL941, VN968, VW714, and VW715) to the effectivity of that service bulletin. We have determined that the unsafe condition of AD 98–03–10 may exist on these additional airplanes. Therefore, these airplanes are also subject to the one-time operational test of the pilots’ seat locks and the seat tracks, and realignment of the seat tracks if necessary. Relevant Service Information We have reviewed Boeing Special Attention Service Bulletin 767–25– 0244, Revision 2, dated September 2, 2004. The service bulletin describes procedures for a one-time operational test of the pilots’ seat locks and the seat tracks to ensure that the seats lock in position and the seat tracks are aligned correctly, and re-alignment of the seat tracks if necessary. Accomplishing the actions specified in the service information is intended to adequately address the unsafe condition. FAA’s Determination and Requirements of the Proposed AD We have evaluated all pertinent information and identified an unsafe condition that is likely to exist or develop on other airplanes of this same type design. Therefore, we are proposing this AD, which would require accomplishing the actions specified in the service information described previously. E:\FR\FM\21JYP1.SGM 21JYP1 42010 Federal Register / Vol. 70, No. 139 / Thursday, July 21, 2005 / Proposed Rules Costs of Compliance There are 5 airplanes of the affected design in the worldwide fleet. This proposed AD would affect about 2 airplanes of U.S. registry. The proposed actions would take about 1 work hour per airplane, at an average labor rate of $65 per work hour. Based on these figures, the estimated cost of the proposed AD for U.S. operators is $130, or $65 per airplane. Re-alignment of the seat tracks, if necessary, would take about 2 work hours per airplane, at an average labor rate of $65 per work hour. Based on these figures, the estimated cost of the re-alignment is $130 per airplane. 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 VerDate jul<14>2003 18:14 Jul 20, 2005 Jkt 205001 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: Alternative Methods of Compliance (AMOCs) (g) 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 July 13, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–14395 Filed 7–20–05; 8:45 am] BILLING CODE 4910–13–P 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–2005–21880; Directorate Identifier 2004–NM–216–AD. Comments Due Date (a) The Federal Aviation Administration (FAA) must receive comments on this AD action by September 6, 2005. Affected ADs (b) None. Applicability (c) This AD applies to Model 767–300 and –300F series airplanes, variable numbers VK145, VL941, VN968, VW714, and VW715, certificated in any category. Unsafe Condition (d) This AD was prompted by reports indicating that the pilot’s seat slid from the forward to the aft-most position during acceleration and take-off. We are issuing this AD to prevent uncommanded movement of the pilots’ seats during acceleration and takeoff of the airplane, and consequent reduced controllability 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. Inspection and Re-Alignment if Necessary (f) Within 90 days after the effective date of this AD, do a one-time operational test of the pilots’ seats and seat locks to determine if the lock pin of the seat track fully engages in all lock positions of the seat track, in accordance with Boeing Special Attention Service Bulletin 767–25–0244, Revision 2, dated September 2, 2004. If the seat lock pin fully engages in all lock positions of the seat track, no further action is required by this AD. If the seat lock pin does not fully engage in all positions of the seat track, before further flight, re-align the seat tracks, in accordance with the service bulletin. PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 DEPARTMENT OF COMMERCE Bureau of Industry and Security 15 CFR Parts 710 Through 729 [Docket No. 990611158–5180–05] RIN 0694–AB06 Review Under Section 610 of the Regulatory Flexibility Act: Economic Impact of the Chemical Weapons Convention Regulations (CWCR) on Small Business Entities Bureau of Industry and Security, Commerce. ACTION: Request for comments. AGENCY: SUMMARY: This document requests comments on the economic impact of the Chemical Weapons Convention Regulations (CWCR) on small business entities, pursuant to the requirements of Section 610 of the Regulatory Flexibility Act (RFA). The comments sought in this document should be directed to the impact of the CWCR on small business entities, only. The public does not need to re-submit previous comments made during the comment period that closed on February 7, 2005, for the proposed CWCR published on December 7, 2004. DATES: Comments must be submitted by August 22, 2005. ADDRESSES: You may submit comments, identified by RIN 0694–AB06, by any of the following methods: • E-mail: public.comments@bis.doc.gov. Include ‘‘RIN 0694–AB06’’ in the subject line of the message. • Fax: (202) 482–3355. Please alert the Regulatory Policy Division, by calling (202) 482–2440, if you are faxing comments. • Mail or Hand Delivery/Courier: Willard Fisher, U.S. Department of Commerce, Bureau of Industry and Security, Regulatory Policy Division, 14th St. & Pennsylvania Avenue, NW., Room 2705, Washington, DC 20230, ATTN: RIN 0694–AB06. E:\FR\FM\21JYP1.SGM 21JYP1

Agencies

[Federal Register Volume 70, Number 139 (Thursday, July 21, 2005)]
[Proposed Rules]
[Pages 42008-42010]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-14395]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-21880; Directorate Identifier 2004-NM-216-AD]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 767-300 and -300F Series 
Airplanes

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

[[Page 42009]]


ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Boeing Model 767-300 and -300F series airplanes. This 
proposed AD would require a one-time operational test of the pilots' 
seat locks and the seat tracks to ensure that the seats lock in 
position and the seat tracks are aligned correctly; and re-alignment of 
the seat tracks, if necessary. This proposed AD is prompted by reports 
indicating that a pilot's seat slid from the forward to the aft-most 
position during acceleration and take-off. We are proposing this AD to 
prevent uncommanded movement of the pilots' seats during acceleration 
and take-off of the airplane, and consequent reduced controllability of 
the airplane.

DATES: We must receive comments on this proposed AD by September 6, 
2005.

ADDRESSES: Use one of the following addresses to submit comments on 
this proposed AD.
     DOT Docket Web site: Go to https://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking web site: Go to https://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401, 
Washington, DC 20590.
     By 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 
Boeing Commercial Airplanes, PO Box 3707, Seattle, Washington 98124-
2207.
    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-2005-21880; the directorate identifier for this docket is 
2004-NM-216-AD.

FOR FURTHER INFORMATION CONTACT: Sue Rosanske, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, 
Washington 98055-4056; telephone (425) 917-6448; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed under ADDRESSES. Include ``Docket No. FAA-2005-21880; 
Directorate Identifier 2004-NM-216-AD'' in the subject line of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the proposed AD. We will 
consider all comments submitted by the closing date and may amend the 
proposed AD in light of those comments.
    We will post all comments we receive, without change, to https://
dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this proposed AD. Using the search function of 
that 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 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 of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the Docket Management System 
(DMS) receives them.

Discussion

    We have received reports indicating that the pilot's seat slid from 
the forward to the aft-most position during acceleration and take-off 
on a Model 737 series airplane. Investigation revealed that the seat 
track was aligned incorrectly. Misalignment of the seat tracks can 
occur when seat tracks have been reinstalled or replaced without fully 
testing the seat lock mechanism. Misalignment of the seat tracks, if 
not corrected, could result in uncommanded movement of the pilots' 
seats during acceleration and take-off of the airplane, and consequent 
reduced controllability of the airplane.
    The pilot seat locks and tracks on certain Model 737 series 
airplanes are identical to those on the affected Model 767-300 and -
300F series airplanes. Therefore, Model 767-300 and -300F series 
airplanes may be subject to the same unsafe condition.

Other Related Rulemaking

    On January 27, 1998, we issued AD 98-03-10, amendment 39-10302 (63 
FR 5725, February 4, 1998), applicable to certain Boeing Model 737, 
747, 757, and 767 series airplanes. AD 98-03-10 requires a one-time 
operational test of the pilots' seat locks and the seat tracks to 
ensure that the seats lock in position and the seat tracks are aligned 
correctly; and re-alignment of the seat tracks, if necessary. We issued 
AD 98-03-10 to prevent uncommanded movement of the pilots' seats during 
acceleration and take-off of the airplane, and consequent reduced 
controllability of the airplane.
    Since we issued AD 98-03-10, Boeing has issued Special Attention 
Service Bulletin 767-25-0244, Revision 2, dated September 2, 2004. 
Revision 2 adds five Model 767-300 and -300F series airplanes (variable 
numbers VK145, VL941, VN968, VW714, and VW715) to the effectivity of 
that service bulletin. We have determined that the unsafe condition of 
AD 98-03-10 may exist on these additional airplanes. Therefore, these 
airplanes are also subject to the one-time operational test of the 
pilots' seat locks and the seat tracks, and re-alignment of the seat 
tracks if necessary.

Relevant Service Information

    We have reviewed Boeing Special Attention Service Bulletin 767-25-
0244, Revision 2, dated September 2, 2004. The service bulletin 
describes procedures for a one-time operational test of the pilots' 
seat locks and the seat tracks to ensure that the seats lock in 
position and the seat tracks are aligned correctly, and re-alignment of 
the seat tracks if necessary. Accomplishing the actions specified in 
the service information is intended to adequately address the unsafe 
condition.

FAA's Determination and Requirements of the Proposed AD

    We have evaluated all pertinent information and identified an 
unsafe condition that is likely to exist or develop on other airplanes 
of this same type design. Therefore, we are proposing this AD, which 
would require accomplishing the actions specified in the service 
information described previously.

[[Page 42010]]

Costs of Compliance

    There are 5 airplanes of the affected design in the worldwide 
fleet. This proposed AD would affect about 2 airplanes of U.S. 
registry. The proposed actions would take about 1 work hour per 
airplane, at an average labor rate of $65 per work hour. Based on these 
figures, the estimated cost of the proposed AD for U.S. operators is 
$130, or $65 per airplane.
    Re-alignment of the seat tracks, if necessary, would take about 2 
work hours per airplane, at an average labor rate of $65 per work hour. 
Based on these figures, the estimated cost of the re-alignment is $130 
per airplane.

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 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.


Sec.  39.13  [Amended]

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

Boeing: Docket No. FAA-2005-21880; Directorate Identifier 2004-NM-
216-AD.

Comments Due Date

    (a) The Federal Aviation Administration (FAA) must receive 
comments on this AD action by September 6, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Model 767-300 and -300F series airplanes, 
variable numbers VK145, VL941, VN968, VW714, and VW715, certificated 
in any category.

Unsafe Condition

    (d) This AD was prompted by reports indicating that the pilot's 
seat slid from the forward to the aft-most position during 
acceleration and take-off. We are issuing this AD to prevent 
uncommanded movement of the pilots' seats during acceleration and 
take-off of the airplane, and consequent reduced controllability 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.

Inspection and Re-Alignment if Necessary

    (f) Within 90 days after the effective date of this AD, do a 
one-time operational test of the pilots' seats and seat locks to 
determine if the lock pin of the seat track fully engages in all 
lock positions of the seat track, in accordance with Boeing Special 
Attention Service Bulletin 767-25-0244, Revision 2, dated September 
2, 2004. If the seat lock pin fully engages in all lock positions of 
the seat track, no further action is required by this AD. If the 
seat lock pin does not fully engage in all positions of the seat 
track, before further flight, re-align the seat tracks, in 
accordance with the service bulletin.

Alternative Methods of Compliance (AMOCs)

    (g) 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 July 13, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-14395 Filed 7-20-05; 8:45 am]
BILLING CODE 4910-13-P
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