Airworthiness Directives; Boeing Model 747-200C and 747-200F Series Airplanes, 56717-56719 [E9-25918]

Download as PDF Federal Register / Vol. 74, No. 211 / Tuesday, November 3, 2009 / Rules and Regulations (1) The Director of the Federal Register previously approved the incorporation by reference of this service information on April 3, 2008 (73 FR 10652, February 28, 2008). (2) For service information identified in this AD, contact ATR—GIE Avions de ´ ´ Transport Regional, 1, Allee Pierre Nadot, 31712 Blagnac Cedex, France; telephone +33 (0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18; e-mail continued.airworthiness@atr.fr; Internet http://www.aerochain.com. (3) You may review copies of the 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 or 425–227–1152. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/ code_of_federal_regulations/ibr_ locations.html. Issued in Renton, Washington, on October 22, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–26289 Filed 11–2–09; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–1362; Directorate Identifier 2008–NM–150–AD; Amendment 39–16067; AD 2009–22–14] RIN 2120–AA64 Airworthiness Directives; Boeing Model 747–200C and 747–200F Series Airplanes dcolon on DSK2BSOYB1PROD with RULES AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Boeing Model 747–200C and 747–200F series airplanes. This AD requires installing larger moisture shrouds and additional drain lines in the electrical/ electronic equipment center. This AD results from reports of water contamination in the electrical/ electronic units in the main equipment center. We are issuing this AD to prevent water contamination in the electrical/electronic units in the main equipment center, which could result in an electrical short and potential loss of several functions essential for safe flight. VerDate Nov<24>2008 15:13 Nov 02, 2009 Jkt 220001 56717 DATES: This AD is effective December 8, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of December 8, 2009. ADDRESSES: For service information identified in this 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. 5 and 6, and adds respective weight and balance tables, materials, parts, and work instructions and figures, but does not add any new procedures. We have revised paragraph (g) of the final rule to refer to Boeing Service Bulletin 747– 25A3430, Revision 1, dated October 9, 2008, and added new paragraph (h) to this AD to give credit for accomplishing the original service bulletin before the effective date of this AD. We have reidentified subsequent paragraphs accordingly. We have also revised Note 1 of this AD to refer to Revision 1. Examining the AD Docket We gave the public the opportunity to participate in developing this AD. We considered the comments received from the two commenters. You may examine the AD docket on the Internet at http:// 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 AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (telephone 800–647–5527) is the Document Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Marcia Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6484; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: Comments Request for Terminology Clarification Boeing requests that we change the phrase ‘‘reworking the base line (BL) 11 intercostals’’ found in the Relevant Service Information section to ‘‘reworking the butt line (BL) 11 intercostals.’’ Boeing recommends using standard aerospace terminology for geometric dimensioning. We partially agree. The language Boeing proposes is the correct terminology, but the Relevant Service Information section in the NPRM is not repeated in the final rule. We have not changed the AD in this regard. Request To Change Affected Airplanes Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an airworthiness directive (AD) that would apply to certain Boeing Model 747–200C and 747–200F series airplanes. That NPRM was published in the Federal Register on January 12, 2009 (74 FR 1158). That NPRM proposed to require installing larger moisture shrouds and additional drain lines in the electrical/electronic equipment center. Boeing requests that we revise the Costs of Compliance section of the NPRM to change the number of affected U.S. airplanes from 25 to 31. Current analysis of the Boeing Airplane Configuration Tracking System airplane database indicates 31 airplanes are affected. We agree, for the reason explained by the commenter. We have revised this final rule accordingly. Request for No Requirement of ReInstallation of Curtains Actions Since NPRM Was Issued Paragraph (g) of the NPRM cited Boeing Alert Service Bulletin 747– 25A3430, dated February 15, 2007, as the appropriate source of service information for the prior or concurrent action for the proposed installation; Boeing has revised this service bulletin. Boeing Service Bulletin 747–25A3430, Revision 1, dated October 9, 2008, moves certain airplanes to new groups PO 00000 Frm 00025 Fmt 4700 Sfmt 4700 Northwest Airlines (Northwest) requests that we consider not requiring re-installation of curtains after accomplishing shroud installation per the instructions of Boeing Alert Service Bulletin 747–25A3431, dated March 6, 2008. Northwest explains that since 2001, it has operated two 747 freighters with the extended overhead moisture shrouds (similar to those installed per Boeing Alert Service Bulletin 747– 25A3431, dated March 6, 2008) that had been installed during a passenger-tofreighter conversion but did not have the curtains installed. Northwest explains that service experience on the E:\FR\FM\03NOR1.SGM 03NOR1 56718 Federal Register / Vol. 74, No. 211 / Tuesday, November 3, 2009 / Rules and Regulations two airplanes showed that there were no moisture ingress problems. We disagree with the request. While Northwest may not have experienced moisture ingress problems on its two airplanes that have been operating without curtains, we cannot mandate fleet-wide action on data from two airplanes. The AD is intended to prevent water contamination in the electrical/electronic main equipment center of the fleet. However, under the provisions of paragraph (i) of this AD, Northwest may request an alternative method of compliance if it can provide data that substantiate the request. We have not changed this AD in this regard. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We also determined that the changes will not increase the economic burden on any operator or increase the scope of the AD. Costs of Compliance We estimate that this proposed AD would affect 31 airplanes of U.S. registry. The following table provides the estimated costs for U.S. operators to comply with this proposed AD. ESTIMATED COSTS Action Work hours Installations ............. Average labor rate per hour Up to 75 ................. $80 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. dcolon on DSK2BSOYB1PROD with RULES Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under 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. VerDate Nov<24>2008 15:13 Nov 02, 2009 Jkt 220001 Parts Cost per product Up to $28,405 ........ Number of U.S.-registered airplanes Up to $34,405 ........ 31 Fleet cost Up to $1,066,555. You can find our regulatory evaluation and the estimated costs of compliance in the AD Docket. could result in an electrical short and potential loss of several functions essential for safe flight. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Compliance (e) Comply with this AD within the compliance times specified, unless already done. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: ■ PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: ■ 2009–22–14 Boeing: Amendment 39–16067. Docket No. FAA–2008–1362; Directorate Identifier 2008–NM–150–AD. Effective Date (a) This airworthiness directive (AD) is effective December 8, 2009. Affected ADs (b) None. Applicability (c) This AD applies to Boeing Model 747– 200C and 747–200F series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 747–25A3431, dated March 6, 2008. Unsafe Condition (d) This AD results from reports of water contamination in the electrical/electronic units in the main equipment center. We are issuing this AD to prevent water contamination in the electrical/electronic units in the main equipment center, which PO 00000 Frm 00026 Fmt 4700 Sfmt 4700 Installation of Shrouds and Drain Lines (f) Within 72 months after the effective date of this AD, install larger moisture shrouds and additional drain lines, by doing all the applicable actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin 747–25A3431, dated March 6, 2008. Installation of Moisture Curtains (g) Prior to or concurrently with accomplishing the actions required by paragraph (f) of this AD: Install protective moisture curtains in the main equipment center in accordance with Boeing Service Bulletin 747–25A3430, Revision 1, dated October 9, 2008. Note 1: The installation required by paragraph (g) of this AD is the same installation required by paragraph (f) of AD 2007–26–03, amendment 39–15305, for Boeing Model 747–200C and –200F series airplanes (AD 2007–26–03 specifies that the actions be done in accordance with Boeing Alert Service Bulletin 747–25A3430, dated February 15, 2007). Boeing Service Bulletin 747–25A3430, Revision 1, dated October 9, 2008, which affects Boeing Model 747–200F airplanes, variable numbers RR566 and RR551 through RR556 inclusive, is an alternative method of compliance for the requirements of paragraph (g) of AD 2007– 26–03. Airplanes identified as Group 1, Group 3, and Group 6 airplanes in Boeing Service Bulletin 747–25A3430, Revision 1, dated October 9, 2008, must comply with paragraph (g) of AD 2007–26–03. Installations Accomplished According to Previous Issue of Service Bulletin (h) Installations accomplished before the effective date of this AD in accordance with Boeing Alert Service Bulletin 747–25A3430, dated February 15, 2007, are considered E:\FR\FM\03NOR1.SGM 03NOR1 Federal Register / Vol. 74, No. 211 / Tuesday, November 3, 2009 / Rules and Regulations acceptable for compliance with the corresponding action, paragraph (g) of this AD. DEPARTMENT OF THE TREASURY Fiscal Service Alternative Methods of Compliance (AMOCs) 31 CFR Part 285 (i)(1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Marcia Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 917–6484; fax (425) 917–6590. Or, email information to 9-ANM-Seattle-ACOAMOC-Requests@faa.gov. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. Material Incorporated by Reference dcolon on DSK2BSOYB1PROD with RULES (j) You must use Boeing Alert Service Bulletin 747–25A3431, dated March 6, 2008; and Boeing Service Bulletin 747–25A3430, Revision 1, dated October 9, 2008; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this 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. (3) You may review copies of the 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 or 425–227–1152. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on October 19, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–25918 Filed 11–2–09; 8:45 am] BILLING CODE 4910–13–P VerDate Nov<24>2008 15:13 Nov 02, 2009 Jkt 220001 RIN 1510–AB23 Administrative Offset Under Reciprocal Agreements With States AGENCY: Financial Management Service, Fiscal Service, Treasury. ACTION: Final rule. SUMMARY: This final rule describes the rules applicable to the offset of Federal nontax payments to collect delinquent debts owed to States pursuant to reciprocal agreements between the Secretary of the Treasury and the States. In addition to providing for the offset of Federal nontax payments, the reciprocal agreements provide for the offset of State payments to collect delinquent, nontax Federal debts. The offsets described in this rule are processed by the Treasury Offset Program (TOP), which the Department of the Treasury’s Financial Management Service (FMS) established to centralize the process by which Federal payments are withheld or reduced (in other words, offset) to collect delinquent debts. DATES: This rule is effective November 3, 2009. FOR FURTHER INFORMATION CONTACT: Thomas Dungan, Senior Policy Analyst, at (202) 874–6660, or Tricia Long, Senior Counsel, at (202) 874–6680. SUPPLEMENTARY INFORMATION: I. Background The Debt Collection Improvement Act of 1996 DCIA), Public Law 104–134, 110 Stat. 1321–358 et seq. (April 26, 1996), authorized Federal disbursing officials to withhold or reduce eligible Federal payments to pay the payee’s delinquent debt owed to the United States. See 31 U.S.C. 3716(c). This process is known as ‘‘administrative offset’’ or ‘‘offset.’’ The DCIA also provided that Federal payments may be offset to collect delinquent debts owed to States provided that the States enter into reciprocal agreements with the Secretary of the Treasury and meet certain other qualifications. See 31 U.S.C. 3716(h). Section 3716(h) authorizes the Secretary of the Treasury to allow States to participate in administrative offset to collect delinquent State debts so long as the States meet the requirements of 31 U.S.C. 3716(h), including entering into reciprocal agreements with the Secretary of the Treasury. Such reciprocal agreements shall contain any PO 00000 Frm 00027 Fmt 4700 Sfmt 4700 56719 requirements that the Secretary considers appropriate, to facilitate offset and prevent duplicative efforts. On January 11, 2007, FMS issued an interim rule with request for comments that established the reciprocal offset program with States through TOP. See 72 FR 1283. In that interim rule, FMS also described the pilot program that was initiated in June 2007. The purpose of the pilot program was to determine if it is in the best interests of the United States and the States to fully implement reciprocal offsets under this section. FMS invited the States to participate in the pilot program, and two States participated. The purposes of the pilot were to test offset systems and procedures and to evaluate whether the benefits of the program outweigh the costs. In the interim rule, FMS indicated it would consider information gained from the operation of the pilot, in addition to comments received on the interim rule, before issuing a final rule. Based upon the results of the pilot program, FMS has determined that it is in the best interests of the United States to continue with the reciprocal offset program with the States with some changes set forth in this final rule. II. Discussion of Comments and Results of the Pilot Public Comments FMS received comments from one association of auditors, comptrollers, and treasurers. Following is a discussion of the substantive issues raised in the comments. 1. Limitations on Payments Available for Offset To Collect State Debts The commenter noted that TOP processes offsets of many payments that are not available for offset to collect State debts. Among those payments are federal tax refunds, social security payments, and federal salary payments. The statute authorizing reciprocal offsets under this section expressly excludes offset of federal tax refunds and social security benefit payments. See 31 U.S.C. 5 3701(d)(1) and 3716(h)(3), respectively. Therefore, offset of those payments is beyond the scope of this rule. In addition, as noted in the interim rule, there are many statutes and regulations that affect federal salary offset, including statutes administered by other federal agencies such as the Office of Personnel Management. See 72 FR 1284. Such laws contain additional requirements for offset of federal salary payments, including the requirement that federal employees have an opportunity for a hearing by an authority not under the control of the creditor agency. See 5 CFR 550.1104(d)(7). The additional legal E:\FR\FM\03NOR1.SGM 03NOR1

Agencies

[Federal Register Volume 74, Number 211 (Tuesday, November 3, 2009)]
[Rules and Regulations]
[Pages 56717-56719]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-25918]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-1362; Directorate Identifier 2008-NM-150-AD; 
Amendment 39-16067; AD 2009-22-14]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 747-200C and 747-200F 
Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Boeing Model 747-200C and 747-200F series airplanes. This AD requires 
installing larger moisture shrouds and additional drain lines in the 
electrical/electronic equipment center. This AD results from reports of 
water contamination in the electrical/electronic units in the main 
equipment center. We are issuing this AD to prevent water contamination 
in the electrical/electronic units in the main equipment center, which 
could result in an electrical short and potential loss of several 
functions essential for safe flight.

DATES: This AD is effective December 8, 2009.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of December 8, 
2009.

ADDRESSES: For service information identified in this 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.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://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 AD, the regulatory evaluation, 
any comments received, and other information. The address for the 
Docket Office (telephone 800-647-5527) is the Document Management 
Facility, U.S. Department of Transportation, Docket Operations, M-30, 
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., 
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Marcia Smith, Aerospace Engineer, 
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle 
Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, 
Washington 98057-3356; telephone (425) 917-6484; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an airworthiness directive (AD) that would apply to 
certain Boeing Model 747-200C and 747-200F series airplanes. That NPRM 
was published in the Federal Register on January 12, 2009 (74 FR 1158). 
That NPRM proposed to require installing larger moisture shrouds and 
additional drain lines in the electrical/electronic equipment center.

Actions Since NPRM Was Issued

    Paragraph (g) of the NPRM cited Boeing Alert Service Bulletin 747-
25A3430, dated February 15, 2007, as the appropriate source of service 
information for the prior or concurrent action for the proposed 
installation; Boeing has revised this service bulletin. Boeing Service 
Bulletin 747-25A3430, Revision 1, dated October 9, 2008, moves certain 
airplanes to new groups 5 and 6, and adds respective weight and balance 
tables, materials, parts, and work instructions and figures, but does 
not add any new procedures. We have revised paragraph (g) of the final 
rule to refer to Boeing Service Bulletin 747-25A3430, Revision 1, dated 
October 9, 2008, and added new paragraph (h) to this AD to give credit 
for accomplishing the original service bulletin before the effective 
date of this AD. We have re-identified subsequent paragraphs 
accordingly. We have also revised Note 1 of this AD to refer to 
Revision 1.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comments received from the two commenters.

Request for Terminology Clarification

    Boeing requests that we change the phrase ``reworking the base line 
(BL) 11 intercostals'' found in the Relevant Service Information 
section to ``reworking the butt line (BL) 11 intercostals.'' Boeing 
recommends using standard aerospace terminology for geometric 
dimensioning.
    We partially agree. The language Boeing proposes is the correct 
terminology, but the Relevant Service Information section in the NPRM 
is not repeated in the final rule. We have not changed the AD in this 
regard.

Request To Change Affected Airplanes

    Boeing requests that we revise the Costs of Compliance section of 
the NPRM to change the number of affected U.S. airplanes from 25 to 31. 
Current analysis of the Boeing Airplane Configuration Tracking System 
airplane database indicates 31 airplanes are affected.
    We agree, for the reason explained by the commenter. We have 
revised this final rule accordingly.

Request for No Requirement of Re-Installation of Curtains

    Northwest Airlines (Northwest) requests that we consider not 
requiring re-installation of curtains after accomplishing shroud 
installation per the instructions of Boeing Alert Service Bulletin 747-
25A3431, dated March 6, 2008. Northwest explains that since 2001, it 
has operated two 747 freighters with the extended overhead moisture 
shrouds (similar to those installed per Boeing Alert Service Bulletin 
747-25A3431, dated March 6, 2008) that had been installed during a 
passenger-to-freighter conversion but did not have the curtains 
installed. Northwest explains that service experience on the

[[Page 56718]]

two airplanes showed that there were no moisture ingress problems.
    We disagree with the request. While Northwest may not have 
experienced moisture ingress problems on its two airplanes that have 
been operating without curtains, we cannot mandate fleet-wide action on 
data from two airplanes. The AD is intended to prevent water 
contamination in the electrical/electronic main equipment center of the 
fleet. However, under the provisions of paragraph (i) of this AD, 
Northwest may request an alternative method of compliance if it can 
provide data that substantiate the request. We have not changed this AD 
in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
the AD with the changes described previously. We also determined that 
the changes will not increase the economic burden on any operator or 
increase the scope of the AD.

Costs of Compliance

    We estimate that this proposed AD would affect 31 airplanes of U.S. 
registry. The following table provides the estimated costs for U.S. 
operators to comply with this proposed AD.

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                     Number of U.S.-
              Action                    Work hours        Average labor          Parts           Cost per product      registered         Fleet cost
                                                          rate per hour                                                 airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Installations....................  Up to 75............             $80  Up to $28,405.......  Up to $34,405.......              31  Up to $1,066,555.
--------------------------------------------------------------------------------------------------------------------------------------------------------

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

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under 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.
    You can find our regulatory evaluation and the estimated costs of 
compliance in the AD Docket.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

2009-22-14 Boeing: Amendment 39-16067. Docket No. FAA-2008-1362; 
Directorate Identifier 2008-NM-150-AD.

Effective Date

    (a) This airworthiness directive (AD) is effective December 8, 
2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Boeing Model 747-200C and 747-200F series 
airplanes, certificated in any category, as identified in Boeing 
Alert Service Bulletin 747-25A3431, dated March 6, 2008.

Unsafe Condition

    (d) This AD results from reports of water contamination in the 
electrical/electronic units in the main equipment center. We are 
issuing this AD to prevent water contamination in the electrical/
electronic units in the main equipment center, which could result in 
an electrical short and potential loss of several functions 
essential for safe flight.

Compliance

    (e) Comply with this AD within the compliance times specified, 
unless already done.

Installation of Shrouds and Drain Lines

    (f) Within 72 months after the effective date of this AD, 
install larger moisture shrouds and additional drain lines, by doing 
all the applicable actions specified in the Accomplishment 
Instructions of Boeing Alert Service Bulletin 747-25A3431, dated 
March 6, 2008.

Installation of Moisture Curtains

    (g) Prior to or concurrently with accomplishing the actions 
required by paragraph (f) of this AD: Install protective moisture 
curtains in the main equipment center in accordance with Boeing 
Service Bulletin 747-25A3430, Revision 1, dated October 9, 2008.

    Note 1: The installation required by paragraph (g) of this AD is 
the same installation required by paragraph (f) of AD 2007-26-03, 
amendment 39-15305, for Boeing Model 747-200C and -200F series 
airplanes (AD 2007-26-03 specifies that the actions be done in 
accordance with Boeing Alert Service Bulletin 747-25A3430, dated 
February 15, 2007). Boeing Service Bulletin 747-25A3430, Revision 1, 
dated October 9, 2008, which affects Boeing Model 747-200F 
airplanes, variable numbers RR566 and RR551 through RR556 inclusive, 
is an alternative method of compliance for the requirements of 
paragraph (g) of AD 2007-26-03. Airplanes identified as Group 1, 
Group 3, and Group 6 airplanes in Boeing Service Bulletin 747-
25A3430, Revision 1, dated October 9, 2008, must comply with 
paragraph (g) of AD 2007-26-03.

Installations Accomplished According to Previous Issue of Service 
Bulletin

    (h) Installations accomplished before the effective date of this 
AD in accordance with Boeing Alert Service Bulletin 747-25A3430, 
dated February 15, 2007, are considered

[[Page 56719]]

acceptable for compliance with the corresponding action, paragraph 
(g) of this AD.

Alternative Methods of Compliance (AMOCs)

    (i)(1) The Manager, Seattle Aircraft Certification Office (ACO), 
FAA, has the authority to approve AMOCs for this AD, if requested 
using the procedures found in 14 CFR 39.19. Send information to 
ATTN: Marcia Smith, Aerospace Engineer, Cabin Safety and 
Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft 
Certification Office, 1601 Lind Avenue, SW., Renton, Washington 
98057-3356; telephone (425) 917-6484; fax (425) 917-6590. Or, e-mail 
information to 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
    (2) To request a different method of compliance or a different 
compliance time for this AD, follow the procedures in 14 CFR 39.19. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your principal maintenance inspector (PMI) or 
principal avionics inspector (PAI), as appropriate, or lacking a 
principal inspector, your local Flight Standards District Office. 
The AMOC approval letter must specifically reference this AD.

Material Incorporated by Reference

    (j) You must use Boeing Alert Service Bulletin 747-25A3431, 
dated March 6, 2008; and Boeing Service Bulletin 747-25A3430, 
Revision 1, dated October 9, 2008; as applicable; to do the actions 
required by this AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of this service information under 5 
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this 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.
    (3) You may review copies of the 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 or 425-227-1152.
    (4) You may also review copies of the service information that 
is incorporated by reference at the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on October 19, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E9-25918 Filed 11-2-09; 8:45 am]
BILLING CODE 4910-13-P