Airworthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes, 52899-52901 [2011-21667]

Download as PDF Federal Register / Vol. 76, No. 164 / Wednesday, August 24, 2011 / Proposed Rules It is DOE’s policy that all comments may be included in the public docket, without change and as received, including any personal information provided in the comments (except information deemed to be exempt from public disclosure). B. Issues on Which DOE Seeks Comment Although DOE welcomes comments on any aspect of this notice, DOE is particularly interested in receiving comments and views of interested parties concerning the following issues: (1) The conclusion that after removing 0.8 percent NEMA’s reduction factor and recalculating lamp arc powers, the remaining differences between DOE and NEMA-provided data are likely due to normal measurement variation; (2) The methodology used to account for compliance certification requirements and measurement variation in developing efficiency levels; (3) The appropriateness of using a power law equation to develop efficiency levels and the chosen values for the exponent ‘‘C’’; and (4) The efficiency levels considered. VII. Approval of the Office of the Secretary The Secretary of Energy has approved publication of this notice of data availability. Issued in Washington, DC, on August 18, 2011. Timothy Unruh, Program Manager, Federal Energy Management Program, Energy Efficiency and Renewable Energy. [FR Doc. 2011–21636 Filed 8–23–11; 8:45 am] BILLING CODE 6450–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 Examining the AD Docket [Docket No. FAA–2011–0725; Directorate Identifier 2011–NM–065–AD] RIN 2120–AA64 wreier-aviles on DSKGBLS3C1PROD with PROPOSALS Airworthiness Directives; The Boeing Company Model 767–200, –300, and –300F Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for certain model 767–200, –300, and –300F series airplanes. This proposed AD would SUMMARY: VerDate Mar<15>2010 16:47 Aug 23, 2011 require doing certain wiring changes, installing a new relay and necessary wiring in the cabin air conditioning and temperature control system (CACTCS), and performing an operational test of the cooling pack fire suppression system. This AD results from reports of loss of avionics cooling due to an unserviceable relay installed on a panel as part of the CACTCS. We are proposing this AD to prevent loss of electrical equipment bay cooling and the overheating of flight deck instruments, which would result in the eventual loss of primary flight displays, an unusually high pilot workload, and depressurization of the cabin. DATES: We must receive comments on this proposed AD by October 11, 2011. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124– 2207; telephone 206–544–5000, extension 1; fax 206–766–5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.com. You may review copies of the referenced 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. Jkt 223001 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Ana Martinez Hueto, Aerospace Engineer, PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 52899 Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, WA 98057–3356; phone: 425–917–6592; fax: 425–917–6590; e-mail: ana.m.hueto@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2011–0725; Directorate Identifier 2011– NM–065–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We received reports of loss of avionics cooling due to an unserviceable relay. This relay was one of six relays installed on a panel as part of the CACTCS. The failure of this relay caused a smoke mode solenoid to energize, causing the air conditioning system to go into a Class E fire suppression mode, the right side of the relay pack to turn off, and the left-side relay pack to go into low-flow mode. Over time, this caused insufficient equipment cooling and the slow depressurization of the cabin. This condition, if not corrected, could result in loss of electrical equipment bay cooling and the overheating of flight deck instruments, which would result in the eventual loss of all primary flight displays, an unusually high pilot workload, and depressurization of the cabin. Relevant Service Information We reviewed Boeing Special Attention Service Bulletins 767–21– 0246, dated January 7, 2011 (for Model 767–200 and 767–300 series airplanes); and 767–21–0234, dated August 6, 2009 (for Model 767–300F series airplanes). These service bulletins describe procedures for changing the wire bundle route and wiring, installing a new relay and applicable wiring in the CACTCS, and doing an operational test of the cooling pack fire suppression system. E:\FR\FM\24AUP1.SGM 24AUP1 52900 Federal Register / Vol. 76, No. 164 / Wednesday, August 24, 2011 / Proposed Rules FAA’s Determination and Proposed AD Requirements We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of these same type designs. This proposed AD would require accomplishing the actions specified in the service information described previously. Costs of Compliance We estimate that this proposed AD affects 35 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: ESTIMATED COSTS Parts cost Action Labor cost Change wire bundle, install relay, and operational test. 29 work-hours × $85 per hour = $2,465 per relay installation. 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. wreier-aviles on DSKGBLS3C1PROD with PROPOSALS Regulatory Findings We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. VerDate Mar<15>2010 16:47 Aug 23, 2011 Jkt 223001 Cost per product $1,240 $3,705 Cost on U.S. operators $129,675 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. cooling and the overheating of flight deck instruments, which would result in the eventual loss of primary flight displays, an unusually high pilot workload, and depressurization of the cabin. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: Compliance 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): The Boeing Company: Docket No. FAA– 2011–0725; Directorate Identifier 2010– NM–065–AD. Comments Due Date (a) We must receive comments by October 11, 2011. Affected ADs (b) None. Applicability (c) This AD applies to The Boeing Company Model 767–200 and -300 series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 767–21–0246, dated January 7, 2011; and Model 767–300F series airplanes, certificated in any category, as identified in Boeing Special Attention Service Bulletin 767–21–0234, dated August 6, 2009. Subject (d) Joint Aircraft System Component (JASC)/Air Transport Association (ATA) of America Code 21: Air conditioning. Unsafe Condition (e) This AD results from reports of loss of avionics cooling due to an unserviceable relay installed on a panel as part of the cabin air conditioning and temperature control system (CACTCS). We are issuing this AD to prevent loss of electrical equipment bay PO 00000 Frm 00011 Fmt 4702 Sfmt 4702 (f) Comply with this AD within the compliance times specified, unless already done. Installation of New Relay and Wiring Bundle (g) Within 72 months after the effective date of this AD: Change the wire bundle route and wiring, install a new relay and applicable wiring in the CACTCS, and do an operational test, in accordance with the Accomplishment Instructions of the service information specified in paragraph (g)(1) or (g)(2) of this AD, as applicable. (1) For Model 767–200 and 767–300 series airplanes: Use Boeing Special Attention Service Bulletin 767–21–0246, dated January 7, 2011. (2) For Model 767–300F series airplanes: Use Boeing Special Attention Service Bulletin 767–21–0234, dated August 6, 2009. Alternative Methods of Compliance (AMOCs) (h)(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. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in the Related Information section of this AD. Information may be e-mailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. Related Information (i) For more information about this AD, contact Ana Martinez Hueto, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM–150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, WA 98057–3356; phone 425–917–6592; fax 425–917–6590; e-mail: ana.m.hueto@faa.gov. E:\FR\FM\24AUP1.SGM 24AUP1 Federal Register / Vol. 76, No. 164 / Wednesday, August 24, 2011 / Proposed Rules (j) 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. You may review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425–227–1221. Issued in Renton, Washington, on August 12, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011–21667 Filed 8–23–11; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0724; Directorate Identifier 2010–NM–181–AD] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Model 757–200, –200PF, and –200CB Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to supersede an existing airworthiness directive (AD) that applies to the products listed above. The existing AD currently requires repetitive inspections of the shim installation between the engine strut vertical flange and bulkhead, and repair if necessary. The existing AD also requires, for certain airplanes, an inspection for cracking of the four critical fastener holes in the horizontal flange, and repair if necessary. Additionally, the existing AD requires that the existing action be performed on airplanes without conclusive records of previous inspections. Since we issued that AD, we have received reports of loose fasteners and cracks at the joint common to the aft torque bulkhead and strut-to-diagonal brace fitting and one report of such damage occurring less than 3,000 flight cycles after the last inspection. This proposed AD would reduce the repetitive inspection interval, and add repetitive detailed inspections for cracking of the bulkhead, and repair if necessary. This proposed AD would also provide an option, for certain airplanes, to extend wreier-aviles on DSKGBLS3C1PROD with PROPOSALS SUMMARY: VerDate Mar<15>2010 16:47 Aug 23, 2011 Jkt 223001 the repetitive intervals by also doing repetitive ultrasonic inspections for cracking of the bulkhead, and repair if necessary. This proposed AD would also add an option for the high frequency eddy current inspection for cracking of the critical fastener holes, and repair if necessary. We are proposing this AD to detect and correct cracks, loose and broken bolts, and shim migration in the joint between the aft torque bulkhead and the strut-todiagonal brace fitting, which could result in damage to the strut and consequent separation of the strut and engine from the airplane. DATES: We must receive comments on this proposed AD by October 11, 2011. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124–2207; phone: 206–544–5000, extension 1; fax: 206–766–5680; e-mail: me.boecom@boeing.com; Internet: https://www.myboeingfleet.com. You may review copies of the referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425–227– 1221. Examining the AD Docket You may examine the AD docket on the Internet at 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Nancy Marsh, Aerospace Engineer, Airframe Branch, ANM–120S, Seattle PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 52901 Aircraft Certification Office (ACO), FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; phone: 425– 917–6440; fax: 425–917–6590; e-mail: Nancy.Marsh@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2011–0724; Directorate Identifier 2010–NM–181–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion On February 22, 2008, we issued AD 2008–05–10, Amendment 39–15404 (73 FR 11347, March 3, 2008), for certain Boeing Model 757–200, –200PF, and –200CB series airplanes powered by Rolls-Royce engines. That AD requires repetitive inspections of the shim installation between the engine strut vertical flange and bulkhead, and repair if necessary. That AD also requires, for certain airplanes, an inspection for cracking of the four critical fastener holes in the horizontal flange, and repair if necessary. That AD resulted from reports of cracking in the pylon under bolts that appear to be undamaged during the existing AD inspections. That AD also resulted from our determination that operators did not maintain records of previous inspections that are necessary to determine the appropriate corrective actions. We issued that AD to detect and correct cracks, loose and broken bolts, and shim migration in the joint between the aft torque bulkhead and the strut-todiagonal brace fitting, which could result in damage to the strut and consequent separation of the strut and engine from the airplane. Actions Since Existing AD Was Issued Since we issued AD 2008–05–10, we have received reports of loose fasteners and cracks at the joint common to the aft torque bulkhead and strut-todiagonal brace fitting and one report of E:\FR\FM\24AUP1.SGM 24AUP1

Agencies

[Federal Register Volume 76, Number 164 (Wednesday, August 24, 2011)]
[Proposed Rules]
[Pages 52899-52901]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-21667]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0725; Directorate Identifier 2011-NM-065-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Model 767-200, -300, 
and -300F Series Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain model 767-200, -300, and -300F series airplanes. This proposed 
AD would require doing certain wiring changes, installing a new relay 
and necessary wiring in the cabin air conditioning and temperature 
control system (CACTCS), and performing an operational test of the 
cooling pack fire suppression system. This AD results from reports of 
loss of avionics cooling due to an unserviceable relay installed on a 
panel as part of the CACTCS. We are proposing this AD to prevent loss 
of electrical equipment bay cooling and the overheating of flight deck 
instruments, which would result in the eventual loss of primary flight 
displays, an unusually high pilot workload, and depressurization of the 
cabin.

DATES: We must receive comments on this proposed AD by October 11, 
2011.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-
544-5000, extension 1; fax 206-766-5680; e-mail me.boecom@boeing.com; 
Internet https://www.myboeingfleet.com. You may review copies of the 
referenced service information at the FAA, Transport Airplane 
Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information 
on the availability of this material at the FAA, call 425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at 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 proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Ana Martinez Hueto, Aerospace 
Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, 
Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, 
WA 98057-3356; phone: 425-917-6592; fax: 425-917-6590; e-mail: 
ana.m.hueto@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2011-0725; 
Directorate Identifier 2011-NM-065-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We received reports of loss of avionics cooling due to an 
unserviceable relay. This relay was one of six relays installed on a 
panel as part of the CACTCS. The failure of this relay caused a smoke 
mode solenoid to energize, causing the air conditioning system to go 
into a Class E fire suppression mode, the right side of the relay pack 
to turn off, and the left-side relay pack to go into low-flow mode. 
Over time, this caused insufficient equipment cooling and the slow 
depressurization of the cabin. This condition, if not corrected, could 
result in loss of electrical equipment bay cooling and the overheating 
of flight deck instruments, which would result in the eventual loss of 
all primary flight displays, an unusually high pilot workload, and 
depressurization of the cabin.

Relevant Service Information

    We reviewed Boeing Special Attention Service Bulletins 767-21-0246, 
dated January 7, 2011 (for Model 767-200 and 767-300 series airplanes); 
and 767-21-0234, dated August 6, 2009 (for Model 767-300F series 
airplanes). These service bulletins describe procedures for changing 
the wire bundle route and wiring, installing a new relay and applicable 
wiring in the CACTCS, and doing an operational test of the cooling pack 
fire suppression system.

[[Page 52900]]

FAA's Determination and Proposed AD Requirements

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of these same type 
designs. This proposed AD would require accomplishing the actions 
specified in the service information described previously.

Costs of Compliance

    We estimate that this proposed AD affects 35 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                              Parts     Cost per   Cost on U.S.
                   Action                              Labor cost              cost     product      operators
----------------------------------------------------------------------------------------------------------------
Change wire bundle, install relay, and       29 work-hours x $85 per hour      $1,240     $3,705        $129,675
 operational test.                            = $2,465 per relay
                                              installation.
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

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

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

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

The Boeing Company: Docket No. FAA-2011-0725; Directorate Identifier 
2010-NM-065-AD.

Comments Due Date

    (a) We must receive comments by October 11, 2011.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to The Boeing Company Model 767-200 and -300 
series airplanes, certificated in any category, as identified in 
Boeing Special Attention Service Bulletin 767-21-0246, dated January 
7, 2011; and Model 767-300F series airplanes, certificated in any 
category, as identified in Boeing Special Attention Service Bulletin 
767-21-0234, dated August 6, 2009.

Subject

    (d) Joint Aircraft System Component (JASC)/Air Transport 
Association (ATA) of America Code 21: Air conditioning.

Unsafe Condition

    (e) This AD results from reports of loss of avionics cooling due 
to an unserviceable relay installed on a panel as part of the cabin 
air conditioning and temperature control system (CACTCS). We are 
issuing this AD to prevent loss of electrical equipment bay cooling 
and the overheating of flight deck instruments, which would result 
in the eventual loss of primary flight displays, an unusually high 
pilot workload, and depressurization of the cabin.

Compliance

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

Installation of New Relay and Wiring Bundle

    (g) Within 72 months after the effective date of this AD: Change 
the wire bundle route and wiring, install a new relay and applicable 
wiring in the CACTCS, and do an operational test, in accordance with 
the Accomplishment Instructions of the service information specified 
in paragraph (g)(1) or (g)(2) of this AD, as applicable.
    (1) For Model 767-200 and 767-300 series airplanes: Use Boeing 
Special Attention Service Bulletin 767-21-0246, dated January 7, 
2011.
    (2) For Model 767-300F series airplanes: Use Boeing Special 
Attention Service Bulletin 767-21-0234, dated August 6, 2009.

Alternative Methods of Compliance (AMOCs)

    (h)(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. In accordance with 14 
CFR 39.19, send your request to your principal inspector or local 
Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in the Related Information 
section of this AD. Information may be e-mailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov.
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

Related Information

    (i) For more information about this AD, contact Ana Martinez 
Hueto, Aerospace Engineer, Cabin Safety and Environmental Systems 
Branch, ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 
Lind Avenue, SW., Renton, WA 98057-3356; phone 425-917-6592; fax 
425-917-6590; e-mail: ana.m.hueto@faa.gov.

[[Page 52901]]

    (j) 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. You 
may review copies of the referenced service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, 
Washington. For information on the availability of this material at 
the FAA, call 425-227-1221.

    Issued in Renton, Washington, on August 12, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-21667 Filed 8-23-11; 8:45 am]
BILLING CODE 4910-13-P