Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes, 51997-52000 [E7-17844]

Download as PDF Federal Register / Vol. 72, No. 176 / Wednesday, September 12, 2007 / Rules and Regulations PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: I 2007–19–01 Pacific Aerospace Corporation, Ltd: Amendment 39–15191; Docket No. FAA–2007–27865; Directorate Identifier 2007–CE–039–AD. Effective Date (a) This airworthiness directive (AD) becomes effective October 17, 2007. Affected ADs (b) None. Applicability (c) This AD applies to Model 750XL airplanes, all serial numbers, certificated in any category, that have not incorporated Pacific Aerospace Limited Service Letter PACSL/XL/07–1, dated April 18, 2007, with Pacific Aerospace LTD Drawing, 11–03129, Issue B or subsequent, in its entirety. Subject (d) Air Transport Association of America (ATA) Code 56: Windows. jlentini on PROD1PC65 with RULES Reason (e) The mandatory continuing airworthiness information (MCAI) states: To prevent the cockpit door windows separating from their frames, * * * The MCAI requires you to inspect the windscreen and cockpit door windows for signs of disbonding of the adhesive between the transparency and the composite window frame. If disbonding is evident, you must do the required modification. Actions and Compliance (f) Unless already done, do the following actions: (1) Within the next 50 hours time-inservice (TIS) after October 17, 2007 (the effective date of this AD) and thereafter at intervals not to exceed 50 hours TIS, inspect the windscreen and cockpit door windows for signs of disbonding of the adhesive between the transparency and the composite window frame following Pacific Aerospace Limited Mandatory Service Bulletin PACSB/ XL/024 (embodiment of modification PAC/ XL/0276) and PAC Drawing No. 11–03137, both dated February 20, 2007 (undated). If you find disbanding during any inspection required by this AD, before further flight, modify the windscreen and cockpit windows to incorporate mechanical fasteners following Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/024 (embodiment of modification PAC/XL/0276) and PAC Drawing No. 11–03137 both dated February 20, 2007. (2) Within the next 150 hours TIS after October 17, 2007 (the effective date of this AD) or within the next 6 months after October 17, 2007 (the effective date of this AD), whichever occurs first, modify the VerDate Aug<31>2005 16:11 Sep 11, 2007 Jkt 211001 windscreen and cockpit windows to incorporate mechanical fasteners following Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/024 (embodiment of modification PAC/XL/0276) and PAC Drawing No. 11–03137 both dated February 20, 2007. The requirement of paragraph (f)(1) of this AD to do repetitive inspections is no longer necessary when the modification of paragraph (f)(2) of this AD is done. FAA AD Differences Note: This AD differs from the MCAI and/ or service information as follows: No differences. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, 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: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4146; fax: (816) 329–4090. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. Related Information (h) Refer to MCAI Civil Aviation Authority of New Zealand AD DCA/750XL/10, dated March 29, 2007; Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/024 (embodiment of modification PAC/XL/0276) and PAC Drawing No. 11–03137 both dated February 20, 2007; and Pacific Aerospace Limited Service Letter PACSL/XL/07–1, dated April 18, 2007, with Pacific Aerospace LTD Drawing, 11–03129, Issue B or subsequent, for related information. Material Incorporated by Reference (i) You must use Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/024 (embodiment of modification PAC/XL/0276) and PAC Drawing No. 11–03137 both dated February 20, 2007, 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. PO 00000 Frm 00023 Fmt 4700 Sfmt 4700 51997 (2) For service information identified in this AD, contact Pacific Aerospace Limited, Hamilton Airport, Private Bag, 3027 Hamilton, New Zealand; telephone: +64 7– 843–6144; facsimile: +64 7–843–6134. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; or 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: https://www.archives.gov/federal-register/ cfr/ibr-locations.html. Issued in Kansas City, Missouri, on September 4, 2007. David R. Showers, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–17828 Filed 9–11–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2006–26043; Directorate Identifier 2005–NM–010–AD; Amendment 39–15193; AD 2007–19–03] RIN 2120–AA64 Airworthiness Directives; McDonnell Douglas Model 717–200 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all McDonnell Douglas Model 717–200 airplanes. This AD requires inspecting the power conversion distribution unit (PCDU) to determine its part number, and modifying certain PCDUs. This AD results from reports of failed PCDUs, the loss of an electrical bus, and the presence of a strong electrical burning odor in the flight deck and forward cabin. We are issuing this AD to prevent the loss of an electrical bus due to PCDU failure, resulting in the loss of all flight displays for an unacceptable time period, and consequent emergency landing. This AD becomes effective October 17, 2007. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of October 17, 2007. ADDRESSES: You may examine the AD docket on the Internet at https:// dms.dot.gov or in person at the U.S. Department of Transportation, Docket Operations, M–30, West Building DATES: E:\FR\FM\12SER1.SGM 12SER1 51998 Federal Register / Vol. 72, No. 176 / Wednesday, September 12, 2007 / Rules and Regulations Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC. Contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1–L5A (D800–0024), for service information identified in this AD. FOR FURTHER INFORMATION CONTACT: Thomas Phan, Aerospace Engineer, Systems and Equipment Branch, ANM– 130L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712–4137; telephone (562) 627–5342; fax (562) 627–5210. SUPPLEMENTARY INFORMATION: Examining the Docket You may examine the AD docket on the Internet at https://dms.dot.gov or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Operations office (telephone (800) 647–5527) is located on the ground floor of the West Building at the DOT street address stated in the ADDRESSES section. Discussion The FAA issued a supplemental notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to all McDonnell Douglas Model 717–200 airplanes. That supplemental NPRM was published in the Federal Register on June 6, 2007 (72 FR 31206). That supplemental NPRM proposed to require inspecting the power conversion distribution unit (PCDU) to determine its part number, and modifying certain PCDUs. That supplemental NPRM also proposed to re-identify the part number reference for the proposed corrective action. Comments We provided the public the opportunity to participate in the development of this AD. No comments have been received on the supplemental NPRM or on the determination of the cost to the public. Conclusion We have carefully reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed in the supplemental NPRM. Costs of Compliance There are about 137 airplanes of the affected design in the worldwide fleet, of which about 108 airplanes are U.S. registered. The following tables provide the estimated costs for U.S. operators to comply with this AD. The total fleet cost could be as high as $434,592. ESTIMATED COSTS FOR PRIMARY ACTIONS Primary actions Work hours Part number identification ................................................................................ Modification (Boeing Alert Service Bulletin 717–24A0028) ............................. Labor rate per hour 1 12 Cost per airplane Parts cost $80 80 $0 0 $80 960 ESTIMATED COSTS FOR CONCURRENT ACTIONS Hamilton Sundstrand Service Bulletin 40EGS22P–24–3 40EGS22P–24–4 40EGS22P–24–6 40EGS22P–24–7 ......................... ......................... ......................... ......................... 40EGS22P–24–8 ......................... 40EGS22P–24–9 ......................... 6 3 3 1 .................................................. .................................................. .................................................. per PCDU, maximum 3 PCDUs per airplane. 10 ................................................ 10 ................................................ jlentini on PROD1PC65 with RULES 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 VerDate Aug<31>2005 16:11 Sep 11, 2007 Labor rate per hour Work hours Jkt 211001 $80 80 80 80 80 80 Parts cost $154, per airplane ....................... 0 .................................................. 0 .................................................. 10 per PCDU, maximum 3 PCDUs per airplane. 0 .................................................. 0 .................................................. products identified in this rulemaking action. Regulatory Findings We have determined that 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 PO 00000 Frm 00024 Fmt 4700 Sfmt 4700 Cost per airplane $634. 240. 240. 270 (maximum). 800. 800. under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. 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, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: I E:\FR\FM\12SER1.SGM 12SER1 Federal Register / Vol. 72, No. 176 / Wednesday, September 12, 2007 / Rules and Regulations PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 by adding the following new airworthiness directive (AD): I 2007–19–03 McDonnell Douglas: Amendment 39–15193. Docket No. FAA–2006–26043; Directorate Identifier 2005–NM–010–AD. Effective Date (a) This AD becomes effective October 17, 2007. Affected ADs (b) None. Applicability (c) This AD applies to all McDonnell Douglas Model 717–200 airplanes, certificated in any category. Unsafe Condition (d) This AD results from reports of failed power conversion distribution units (PCDUs), the loss of an electrical bus, and the presence of a strong electrical burning odor in the flight deck and forward cabin. We are issuing this AD to prevent the loss of an electrical bus due to PCDU failure, resulting in the loss of all flight displays for an unacceptable time period, and consequent emergency landing. 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. Identification of PCDU Part Number (f) Within 20 months after the effective date of this AD, inspect the PCDU to determine its part number. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number can be conclusively determined from that review. (1) If the part number is below 762904E, do the actions specified in paragraphs (g) and (h) of this AD. (2) If the part number is 762904E or higher, no further work is required by this AD. 51999 Modification (g) Within 20 months after the effective date of this AD, modify the PCDU in accordance with Boeing Alert Service Bulletin 717–24A0028, Revision 1, dated December 20, 2005. A modification done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 717–24A0028, dated November 24, 2004, is acceptable for compliance with the requirements of this paragraph. Note 1: Boeing Alert Service Bulletin 717– 24A0028 refers to Hamilton Sundstrand Service Bulletin 40EGS22P–24–10, Revision 1, dated May 11, 2005, as an additional source of service information for the modification. Concurrent Requirements (h) Before or concurrently with the modification required by paragraph (g) of this AD, do the applicable actions specified in Table 1 of this AD. TABLE 1.—CONCURRENT REQUIREMENTS Do the following— In accordance with Hamilton Sundstrand Service Bulletin— Rework the transformer rectifier unit assembly (TRU) ................................................................... Rework the W3 wiring harness assembly to install direct lead wires to the TRU Add a ground wire to the TRU transformer Add an insulated spacer to the PCDU top cover Install new PCDU 186 firmware ...................................................................................................... 40EGS22P–24–3, dated June 30, 2000. Install new PCDU 186 firmware ...................................................................................................... Modify the top cover of the PCDU .................................................................................................. Modify printed wiring board (PWB) assemblies A4 and A5 ........................................................... Check and apply torque seal to fasteners on the TRU assembly and to PCDU internal fasteners, as applicable Modify PWB assembly A4 .............................................................................................................. Credit for Accomplishment of Earlier Service Bulletin (i) Installation of new PCDU 186 firmware before the effective date of this AD in accordance with Hamilton Sundstrand Service Bulletin 40EGS22P–24–4, dated April 26, 2001, is acceptable for compliance with the corresponding requirements of paragraph (h) of this AD. Alternative Methods of Compliance (AMOCs) (j)(1) The Manager, Los Angeles Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (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 40EGS22P–24–4, 2002. 40EGS22P–24–6, 40EGS22P–24–7, 40EGS22P–24–8, Revision 1, dated January 2, dated July 25, 2002. dated September 3, 2003. dated September 4, 2003. 40EGS22P–24–9, dated November 19, 2003. any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Material Incorporated by Reference (k) You must use the service documents identified in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. TABLE 2.—MATERIAL INCORPORATED BY REFERENCE jlentini on PROD1PC65 with RULES Service Bulletin Revision level Boeing Alert Service Bulletin 717–24A0028 ................................................................................... Hamilton Sundstrand Service Bulletin 40EGS22P–24–3 ................................................................ Hamilton Sundstrand Service Bulletin 40EGS22P–24–4 ................................................................ Hamilton Sundstrand Service Bulletin 40EGS22P–24–6 ................................................................ Hamilton Sundstrand Service Bulletin 40EGS22P–24–7 ................................................................ Hamilton Sundstrand Service Bulletin 40EGS22P–24–8 ................................................................ Hamilton Sundstrand Service Bulletin 40EGS22P–24–9 ................................................................ 1 ................................ Original ...................... 1 ................................ Original ...................... Original ...................... Original ...................... Original ...................... VerDate Aug<31>2005 16:11 Sep 11, 2007 Jkt 211001 PO 00000 Frm 00025 Fmt 4700 Sfmt 4700 E:\FR\FM\12SER1.SGM 12SER1 Date December 20, 2005. June 30, 2000. January 2, 2002. July 25, 2002. September 3, 2003. September 4, 2003. November 19, 2003. 52000 Federal Register / Vol. 72, No. 176 / Wednesday, September 12, 2007 / Rules and Regulations Hamilton Sundstrand Service Bulletin 40EGS22P–24–4, Revision 1, dated January 2, 2002, has the following effective pages: Page Nos. Revision level shown on page Date shown on page 1, 3, 4, 5, 6, 7, 8 .............................................................................................................................. 2 ....................................................................................................................................................... 1 ................................ Original ...................... January 2, 2002. April 26, 2001. The Director of the Federal Register approved the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1–L5A (D800–0024), for a copy of this service information. You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or 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: https://www.archives.gov/federal-register/ cfr/ibr-locations.html. You may submit comments, identified by RIN 0694–AE08, by any of the following methods: ∑ E-mail: publiccomments@bis.doc.gov. Include ‘‘RIN 0694–AE08’’ 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–AE08. Send comments regarding this collection of information, including suggestions for reducing the burden, to David Rostker, Office of Management and Budget (OMB), by e-mail to David_Rostker@omb.eop.gov, or by fax to (202) 395–7285; and to the Regulatory Policy Division, Bureau of Industry and Security, Department of Commerce, P.O. Box 273, Washington, DC 20044. Comments on this collection of information should be submitted separately from comments on the final rule (i.e., RIN 0694–AE08)—all comments on the latter should be submitted by one of the three methods outlined above. FOR FURTHER INFORMATION CONTACT: Elizabeth Scott, Director, Chemical and Biological Controls Division, Office of Nonproliferation and Treaty Compliance, Bureau of Industry and Security, Telephone: (202) 482–3343. SUPPLEMENTARY INFORMATION: Issued in Renton, Washington, on September 4, 2007. Stephen P. Boyd, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–17844 Filed 9–11–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF COMMERCE Bureau of Industry and Security 15 CFR Parts 738, 740, 745, 772, and 774 [Docket No. 070705267–7492–01] RIN 0694–AE08 Implementation of the Understandings Reached at the June 2007 Australia Group (AG) Plenary Meeting; Addition to the List of States Parties to the Chemical Weapons Convention (CWC) Bureau of Industry and Security, Commerce. ACTION: Final rule. jlentini on PROD1PC65 with RULES AGENCY: SUMMARY: The Bureau of Industry and Security (BIS) is publishing this final rule to amend the Export Administration Regulations (EAR) to implement the understandings reached at the June 2007 plenary meeting of the Australia Group (AG). This final rule amends the EAR to reflect changes to the AG ‘‘Control List of Biological Agents’’ that the countries participating in the AG adopted at the plenary meeting. Specifically, this rule revises the Commerce Control List (CCL) entry that controls animal pathogens on the VerDate Aug<31>2005 16:11 Sep 11, 2007 Jkt 211001 AG ‘‘Control List of Biological Agents’’ by revising the listing for mycoplasma mycoides to include only the specific subspecies and strains of mycoplasma mycoides that are of most concern as the causative agents of disease in animals, i.e., Mycoplasma mycoides subspecies mycoides SC (small colony) and Mycoplasma capricolum subspecies capripneumoniae (‘‘strain F38’’). In addition, this rule makes conforming changes to the CCL entry that controls certain select agents not included on any of the AG Common Control Lists. This rule also amends the EAR to reflect the admission of Croatia to the Australia Group and updates the definition of ‘‘Australia Group’’ in the EAR by adding Croatia to the list of participating countries. In addition to the AG plenary meeting changes described above, this rule amends the EAR by revising the CCL entry that controls certain equipment capable of being used in handling biological materials. This rule revises a Technical Note in the CCL entry by updating the edition of the World Health Organization (WHO) ‘‘Laboratory Biosafety Manual’’ referenced therein to to identify the current edition of the manual. This WHO manual contains safety requirements for P3 or P4 (BL3, BL4, L3, L4) complete containment facilities. Finally, this rule amends the list of countries that currently are States Parties to the Chemical Weapons Convention (CWC) by adding ‘‘Barbados,’’ which recently became a State Party. As a result of this change, the CW (Chemical Weapons) license requirements and policies in the EAR that apply to Barbados now conform with those applicable to other CWC States Parties. This rule also clarifies the scope of the entry for ‘‘China’’ on the list of CWC States Parties by revising the footnote to this entry to indicate that, for CWC purposes only, China includes ‘‘Macau,’’ as well as ‘‘Hong Kong.’’ This rule is effective September 12, 2007. Although there is no formal comment period, public comments on this regulation are welcome on a continuing basis. DATES: PO 00000 Frm 00026 Fmt 4700 Sfmt 4700 ADDRESSES: Background The Bureau of Industry and Security (BIS) is amending the Export Administration Regulations (EAR) to implement the understandings reached at the annual plenary meeting of the Australia Group (AG) that was held in Paris on June 4–7, 2007. The Australia Group is a multilateral forum, consisting of 40 participating countries, that maintains export controls on a list of chemicals, biological agents, and related equipment and technology that could be used in a chemical or biological weapons program. The AG periodically E:\FR\FM\12SER1.SGM 12SER1

Agencies

[Federal Register Volume 72, Number 176 (Wednesday, September 12, 2007)]
[Rules and Regulations]
[Pages 51997-52000]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-17844]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-26043; Directorate Identifier 2005-NM-010-AD; 
Amendment 39-15193; AD 2007-19-03]
RIN 2120-AA64


Airworthiness Directives; McDonnell Douglas Model 717-200 
Airplanes

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

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
McDonnell Douglas Model 717-200 airplanes. This AD requires inspecting 
the power conversion distribution unit (PCDU) to determine its part 
number, and modifying certain PCDUs. This AD results from reports of 
failed PCDUs, the loss of an electrical bus, and the presence of a 
strong electrical burning odor in the flight deck and forward cabin. We 
are issuing this AD to prevent the loss of an electrical bus due to 
PCDU failure, resulting in the loss of all flight displays for an 
unacceptable time period, and consequent emergency landing.

DATES: This AD becomes effective October 17, 2007.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of October 17, 
2007.

ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the U.S. Department of Transportation, 
Docket Operations, M-30, West Building

[[Page 51998]]

Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, 
DC.
    Contact Boeing Commercial Airplanes, Long Beach Division, 3855 
Lakewood Boulevard, Long Beach, California 90846, Attention: Data and 
Service Management, Dept. C1-L5A (D800-0024), for service information 
identified in this AD.

FOR FURTHER INFORMATION CONTACT: Thomas Phan, Aerospace Engineer, 
Systems and Equipment Branch, ANM-130L, FAA, Los Angeles Aircraft 
Certification Office, 3960 Paramount Boulevard, Lakewood, California 
90712-4137; telephone (562) 627-5342; fax (562) 627-5210.

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the AD docket on the Internet at https://dms.dot.gov 
or in person at the Docket Operations office between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The Docket Operations 
office (telephone (800) 647-5527) is located on the ground floor of the 
West Building at the DOT street address stated in the ADDRESSES 
section.

Discussion

    The FAA issued a supplemental notice of proposed rulemaking (NPRM) 
to amend 14 CFR part 39 to include an AD that would apply to all 
McDonnell Douglas Model 717-200 airplanes. That supplemental NPRM was 
published in the Federal Register on June 6, 2007 (72 FR 31206). That 
supplemental NPRM proposed to require inspecting the power conversion 
distribution unit (PCDU) to determine its part number, and modifying 
certain PCDUs. That supplemental NPRM also proposed to re-identify the 
part number reference for the proposed corrective action.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. No comments have been received on the 
supplemental NPRM or on the determination of the cost to the public.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed 
in the supplemental NPRM.

Costs of Compliance

    There are about 137 airplanes of the affected design in the 
worldwide fleet, of which about 108 airplanes are U.S. registered. The 
following tables provide the estimated costs for U.S. operators to 
comply with this AD. The total fleet cost could be as high as $434,592.

                                       Estimated Costs for Primary Actions
----------------------------------------------------------------------------------------------------------------
                                                                    Labor rate                       Cost per
                 Primary actions                    Work hours       per hour       Parts cost       airplane
----------------------------------------------------------------------------------------------------------------
Part number identification......................               1             $80              $0             $80
Modification (Boeing Alert Service Bulletin 717-              12              80               0             960
 24A0028).......................................
----------------------------------------------------------------------------------------------------------------


                                     Estimated Costs for Concurrent Actions
----------------------------------------------------------------------------------------------------------------
 Hamilton Sundstrand  Service                        Labor rate
           Bulletin                 Work hours        per hour         Parts cost          Cost per airplane
----------------------------------------------------------------------------------------------------------------
40EGS22P-24-3.................  6................             $80  $154, per          $634.
                                                                    airplane.
40EGS22P-24-4.................  3................              80  0................  240.
40EGS22P-24-6.................  3................              80  0................  240.
40EGS22P-24-7.................  1 per PCDU,                    80  10 per PCDU,       270 (maximum).
                                 maximum 3 PCDUs                    maximum 3 PCDUs
                                 per airplane.                      per airplane.
40EGS22P-24-8.................  10...............              80  0................  800.
40EGS22P-24-9.................  10...............              80  0................  800.
----------------------------------------------------------------------------------------------------------------

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 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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket. 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, 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:

[[Page 51999]]

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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

2007-19-03 McDonnell Douglas: Amendment 39-15193. Docket No. FAA-
2006-26043; Directorate Identifier 2005-NM-010-AD.

Effective Date

    (a) This AD becomes effective October 17, 2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to all McDonnell Douglas Model 717-200 
airplanes, certificated in any category.

Unsafe Condition

    (d) This AD results from reports of failed power conversion 
distribution units (PCDUs), the loss of an electrical bus, and the 
presence of a strong electrical burning odor in the flight deck and 
forward cabin. We are issuing this AD to prevent the loss of an 
electrical bus due to PCDU failure, resulting in the loss of all 
flight displays for an unacceptable time period, and consequent 
emergency landing.

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.

Identification of PCDU Part Number

    (f) Within 20 months after the effective date of this AD, 
inspect the PCDU to determine its part number. A review of airplane 
maintenance records is acceptable in lieu of this inspection if the 
part number can be conclusively determined from that review.
    (1) If the part number is below 762904E, do the actions 
specified in paragraphs (g) and (h) of this AD.
    (2) If the part number is 762904E or higher, no further work is 
required by this AD.

Modification

    (g) Within 20 months after the effective date of this AD, modify 
the PCDU in accordance with Boeing Alert Service Bulletin 717-
24A0028, Revision 1, dated December 20, 2005. A modification done 
before the effective date of this AD in accordance with Boeing Alert 
Service Bulletin 717-24A0028, dated November 24, 2004, is acceptable 
for compliance with the requirements of this paragraph.

    Note 1: Boeing Alert Service Bulletin 717-24A0028 refers to 
Hamilton Sundstrand Service Bulletin 40EGS22P-24-10, Revision 1, 
dated May 11, 2005, as an additional source of service information 
for the modification.

Concurrent Requirements

    (h) Before or concurrently with the modification required by 
paragraph (g) of this AD, do the applicable actions specified in 
Table 1 of this AD.

                    Table 1.--Concurrent Requirements
------------------------------------------------------------------------
                                             In accordance with Hamilton
            Do the following--              Sundstrand Service Bulletin--
 
------------------------------------------------------------------------
Rework the transformer rectifier unit       40EGS22P-24-3, dated June
 assembly (TRU).                             30, 2000.
Rework the W3 wiring harness assembly to
 install direct lead wires to the TRU
Add a ground wire to the TRU transformer
Add an insulated spacer to the PCDU top
 cover
Install new PCDU 186 firmware.............  40EGS22P-24-4, Revision 1,
                                             dated January 2, 2002.
Install new PCDU 186 firmware.............  40EGS22P-24-6, dated July
                                             25, 2002.
Modify the top cover of the PCDU..........  40EGS22P-24-7, dated
                                             September 3, 2003.
Modify printed wiring board (PWB)           40EGS22P-24-8, dated
 assemblies A4 and A5.                       September 4, 2003.
Check and apply torque seal to fasteners
 on the TRU assembly and to PCDU internal
 fasteners, as applicable
Modify PWB assembly A4....................  40EGS22P-24-9, dated
                                             November 19, 2003.
------------------------------------------------------------------------

Credit for Accomplishment of Earlier Service Bulletin

    (i) Installation of new PCDU 186 firmware before the effective 
date of this AD in accordance with Hamilton Sundstrand Service 
Bulletin 40EGS22P-24-4, dated April 26, 2001, is acceptable for 
compliance with the corresponding requirements of paragraph (h) of 
this AD.

Alternative Methods of Compliance (AMOCs)

    (j)(1) The Manager, Los Angeles Aircraft Certification Office, 
FAA, has the authority to approve AMOCs for this AD, if requested in 
accordance with the procedures found in 14 CFR 39.19.
    (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 appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.

Material Incorporated by Reference

    (k) You must use the service documents identified in Table 2 of 
this AD to perform the actions that are required by this AD, unless 
the AD specifies otherwise.

                                  Table 2.--Material Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
           Service Bulletin                        Revision level                            Date
----------------------------------------------------------------------------------------------------------------
Boeing Alert Service Bulletin 717-      1..................................  December 20, 2005.
 24A0028.
Hamilton Sundstrand Service Bulletin    Original...........................  June 30, 2000.
 40EGS22P-24-3.
Hamilton Sundstrand Service Bulletin    1..................................  January 2, 2002.
 40EGS22P-24-4.
Hamilton Sundstrand Service Bulletin    Original...........................  July 25, 2002.
 40EGS22P-24-6.
Hamilton Sundstrand Service Bulletin    Original...........................  September 3, 2003.
 40EGS22P-24-7.
Hamilton Sundstrand Service Bulletin    Original...........................  September 4, 2003.
 40EGS22P-24-8.
Hamilton Sundstrand Service Bulletin    Original...........................  November 19, 2003.
 40EGS22P-24-9.
----------------------------------------------------------------------------------------------------------------


[[Page 52000]]

Hamilton Sundstrand Service Bulletin 40EGS22P-24-4, Revision 1, 
dated January 2, 2002, has the following effective pages:

----------------------------------------------------------------------------------------------------------------
               Page Nos.                    Revision level shown on page              Date shown on page
----------------------------------------------------------------------------------------------------------------
1, 3, 4, 5, 6, 7, 8...................  1..................................  January 2, 2002.
2.....................................  Original...........................  April 26, 2001.
----------------------------------------------------------------------------------------------------------------

The Director of the Federal Register approved the incorporation by 
reference of these documents in accordance with 5 U.S.C. 552(a) and 
1 CFR part 51. Contact Boeing Commercial Airplanes, Long Beach 
Division, 3855 Lakewood Boulevard, Long Beach, California 90846, 
Attention: Data and Service Management, Dept. C1-L5A (D800-0024), 
for a copy of this service information. You may review copies at the 
FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, 
Washington; or 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: https://www.archives.gov/federal-
register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on September 4, 2007.
Stephen P. Boyd,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E7-17844 Filed 9-11-07; 8:45 am]
BILLING CODE 4910-13-P
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