Airworthiness Directives; Boeing Model 777 Airplanes, 53547-53550 [05-17762]

Download as PDF Federal Register / Vol. 70, No. 174 / Friday, September 9, 2005 / Rules and Regulations 53547 TABLE 3.—COMPLIANCE TIMES FOR ONETIME INSPECTION If the TSO of the propeller assembly on the effective date of this AD is . . . (1) More 25 years or the TSO is not known. (2) Twenty-one to 25 years ............. (3) Sixteen to 20 years ................... (4) Eleven to 15 years .................... Then . . . Perform the the inspection . . . (a) Disassemble and clean the propeller assembly .............................. (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole. (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC–SB–61–136, Revision I, dated April 26, 2003. (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. (a) Disassemble and clean the propeller assembly .............................. (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole. (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC–SB–61–136, Revision I, dated April 26, 2003. (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. (a) Disassemble and clean the propeller assembly .............................. (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole. (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC–SB–61–136, Revision I, dated April 26, 2003. (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. (a) Disassemble and clean the propeller assembly .............................. (b) Perform visual and nondestructive inspections of propeller components for cracks, corrosion or pits, nicks, scratches, wear, blade minimum dimensions, and damage in the blade balance hole. (c) Inspect and rework the propeller blade bore. Use 3.A. of the Accomplishment instructions of Hartzell SB No. HC–SB–61–136, Revision I, dated April 26, 2003. (d) Repair and replace with serviceable parts, as necessary. (e) Reassemble and test. Within 12 months after the effective date of this AD. Related Information Propeller Overhaul (j) Performing an overhaul of the propeller assembly after the effective date of this AD constitutes compliance with the requirements specified in this AD. The latest applicable Maintenance Manuals issued by Hartzell Propeller Inc. contain information on overhauling a propeller assembly. (k) The time-since-overhaul only changes if you overhaul the propeller assembly while performing the requirements specified in this AD. Reporting Requirements (l) Report inspection results to the Manager, Chicago Aircraft Certification Office, FAA, Small Airplane Directorate, 2300 East Devon Ave, Des Plaines, IL 60018, within 15 working days of the inspection. The Office of Management and Budget (OMB) approved the reporting requirements and assigned OMB control number 2120–0056. Alternative Methods of Compliance (m) The Manager, Chicago Aircraft Certification Office has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. VerDate Aug<18>2005 15:11 Sep 08, 2005 Jkt 205001 (n) None. Material Incorporated by Reference (o) You must use Hartzell Service Bulletin No. HC–SB–61–136, Revision I, dated April 25, 2003, to perform the inspections and rework required by this AD. The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Hartzell Propeller Inc. Technical Publications Department, One Propeller Place, Piqua, OH 45356; telephone (937) 778–4200; fax (937) 778–4391, for a copy of this service information. You may review copies at the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL–401, Washington, DC 20590–0001, on the internet at http://dms.dot.gov, 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: http:// www.archives.gov/federal-register/cfr/ibrlocations.html. PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 Within 18 months after the effective date of this AD. Within 24 months after the effective date of this AD. Within 36 months after the effective date of this AD. Issued in Burlington, Massachusetts, on August 29, 2005. Peter A. White, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. 05–17667 Filed 9–8–05; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–22252; Directorate Identifier 2005–NM–182–AD; Amendment 39–14260; AD 2005–18–51] RIN 2120–AA64 Airworthiness Directives; Boeing Model 777 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. AGENCY: E:\FR\FM\09SER1.SGM 09SER1 53548 Federal Register / Vol. 70, No. 174 / Friday, September 9, 2005 / Rules and Regulations SUMMARY: This document publishes in the Federal Register an amendment adopting airworthiness directive (AD) 2005–18–51 that was sent previously to all known U.S. owners and operators of Boeing Model 777 airplanes by individual notices. This AD supersedes an existing AD that applies to certain Boeing Model 777–200 and ‘‘300 series airplanes. The existing AD currently requires modification of the operational program software (OPS) of the air data inertial reference unit (ADIRU). This new AD requires installing a certain OPS in the ADIRU, and revising the airplane flight manual to provide the flightcrew with operating instructions for possible ADIRU heading errors and for potential incorrect display of drift angle. This AD results from a recent report of a significant nose-up pitch event. We are issuing this AD to prevent the OPS from using data from faulted (failed) sensors, which could result in anomalies of the fly-by-wire primary flight control, autopilot, auto-throttle, pilot display, and auto-brake systems. These anomalies could result in high pilot workload, deviation from the intended flight path, and possible loss of control of the airplane. DATES: This AD becomes effective September 14, 2005 to all persons except those persons to whom it was made immediately effective by emergency AD 2005–18–51, issued August 29, 2005, which contained the requirements of this amendment. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of September 14, 2005. We must receive comments on this AD by November 8, 2005. ADDRESSES: Use one of the following addresses to submit comments on this AD. • DOT Docket Web site: Go to http://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street SW., Nassif Building, room PL–401, Washington, DC 20590. • Fax: (202) 493–2251. • Hand Delivery: Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207, for service information identified in this AD. VerDate Aug<18>2005 15:11 Sep 08, 2005 Jkt 205001 Paul Feider, Aerospace Engineer, Systems and Equipment Branch, ANM–130S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 917–6467; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: FOR FURTHER INFORMATION CONTACT: Background On April 29, 2005, we issued AD 2005–10–03, amendment 39–14080 (70 FR 24703, May 11, 2005), for certain Boeing Model 777–200 and ‘‘300 series airplanes. That AD requires modification of the operational program software (OPS) of the air data inertial reference unit (ADIRU) from software version part number (P/N) 3470–HNC– 100–03 to software version P/N 3475– HNC–100–06 or 3474–HNC–100–07. That AD resulted from a report of the display of erroneous heading information to the pilot due to a defect in the OPS of the ADIRU. We issued that AD to prevent the display of erroneous heading information to the pilot, which could result in loss of the main sources of attitude data, consequent high pilot workload, and subsequent deviation from the intended flight path. Actions Since Issuance of Previous AD On August 29, 2005, we issued emergency AD 2005–18–51, which applies to all Boeing Model 777 airplanes. That AD resulted from a recent report of a significant nose-up pitch event on a Boeing Model 777–200 series airplane while climbing through 36,000 feet altitude. The flightcrew disconnected the autopilot and stabilized the airplane, during which time the airplane climbed above 41,000 feet, decelerated to a minimum speed of 158 knots, and activated the stick shaker. A review of the flight data recorder shows there were abrupt and persistent errors in the outputs of the ADIRU. These errors were caused by the OPS using data from faulted (failed) sensors. This problem exists in all software versions after P/N 3470–HNC– 100–03, beginning with P/N 3477– HNC–100–04 approved in 1998 and including the versions mandated by AD 2005–10–03. While these versions have been installed on many airplanes before we issued AD 2005–10–03, they had not caused an incident until recently, and the problem was therefore unknown until then. OPS using data from faulted sensors, if not corrected, could result in anomalies of the fly-by-wire primary flight control, autopilot, auto-throttle, pilot display, and auto-brake systems, which could result in high pilot workload, deviation from the intended PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 flight path, and possible loss of control of the airplane. Relevant Service Information We have reviewed Boeing Alert Service Bulletin 777–34A0137, dated August 26, 2005. The service bulletin describes procedures for installing OPS, P/N 3470–HNC–100–03, in the ADIRU. We also have reviewed Boeing 777 Operations Manual Bulletin (OMB) CS3–3093, dated August 26, 2005, which describes operating instructions to inform the flightcrew of possible heading errors following on-ground automatic realignment of the ADIRU with the OPS, P/N 3470–HNC–100–03, installed. In addition, we have reviewed Boeing 777 OMB CS3–3155, dated August 26, 2005, which describes operating instructions to inform the flightcrew of potential drift angle discrepancies on the primary flight display and the navigation display with the OPS, P/N 3470–HNC–100–03, installed. FAA’s Determination and Requirements of This AD Since the unsafe conditions described previously are likely to exist or develop on other airplanes of the same type design, we issued emergency AD 2005– 18–51 to supersede AD 2005–10–03. This new AD requires accomplishing the actions specified in Boeing Alert Service Bulletin 777–34A0137, described previously. Because these actions reintroduce the unsafe condition identified in AD 2005–10–03, this new AD also requires revising the Limitation section of the Airplane Flight Manual by inserting a copy of Boeing 777 OMBs CS3–3093 and CS3–3155, described previously. Interim Action We consider this AD interim action. The manufacturer is currently developing a modification that will address the unsafe condition identified in this AD and AD 2005–10–03. Once this modification is developed, approved, and available, we may consider additional rulemaking FAA’s Determination of the Effective Date We found that immediate corrective action was required; therefore, notice and opportunity for prior public comment thereon were impracticable and contrary to the public interest, and good cause existed to make the AD effective immediately by individual notices issued on August 29, 2005, to all known U.S. owners and operators of Boeing Model 777 airplanes. These conditions still exist, and the AD is E:\FR\FM\09SER1.SGM 09SER1 Federal Register / Vol. 70, No. 174 / Friday, September 9, 2005 / Rules and Regulations hereby published in the Federal Register as an amendment to § 39.13 of the Federal Aviation Regulations (14 CFR 39.13) to make it effective to all persons. Comments Invited This AD is a final rule that involves requirements that affect flight safety and was not preceded by notice and an opportunity for public comment; however, we invite you to submit any relevant written data, views, or arguments regarding this AD. Send your comments to an address listed in the ADDRESSES section. Include ‘‘Docket No. FAA–2005–22252; Directorate Identifier 2005–NM–182–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the AD. We will consider all comments received by the closing date and may amend the AD in light of those comments. We will post all comments we receive, without change, to http:// dms.dot.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this AD. Using the search function of our docket web site, anyone can find and read the comments in any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You can review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78), or you can visit http://dms.dot.gov. Examining the Dockets You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level of the Nassif Building at the DOT street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after the Docket Management System receives them. 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. VerDate Aug<18>2005 15:11 Sep 08, 2005 Jkt 205001 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. The FAA has determined that this regulation is an emergency regulation that must be issued immediately to correct an unsafe condition in aircraft, and that it is not a ‘‘significant regulatory action’’ under Executive Order 12866. It has been determined further that this action involves an emergency regulation under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). If this emergency regulation is later deemed significant under DOT Regulatory Policies and Procedures, we will prepare a final regulatory evaluation and place it in the AD Docket. See the ADDRESSES section for a location to examine the regulatory evaluation, if filed. 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 following new airworthiness directive (AD): AD 2005–18–51 Boeing: Amendment 39– 14260. Docket No. FAA–2005–22252; Directorate Identifier 2005–NM–182–AD. Effective Date (a) This AD becomes effective September 14, 2005, to all persons except those persons to whom it was made immediately effective by emergency AD 2005–18–51, issued on August 29, 2005, which contained the requirements of this amendment. Affected ADs (b) This AD supersedes AD 2005–10–03. Applicability (c) This AD applies to all Boeing Model 777–200, –300, and –300ER series airplanes, certificated in any category. Unsafe Condition (d) This AD results from a recent report of a significant nose-up pitch event. We are issuing this AD to prevent the operational program software (OPS) from using data from faulted (failed) sensors, which could result in anomalies of the fly-by-wire primary flight control, autopilot, auto-throttle, pilot display, and auto-brake systems. These anomalies could result in high pilot workload, deviation from the intended flight path, and possible loss of control of the airplane. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Installation of OPS (f) Within 72 hours after the effective date of this AD, do the actions specified in paragraphs (f)(1) and (f)(2) of this AD. (1) Install OPS, part number (P/N) 3470– HNC–100–03, in the air data inertial reference unit (ADIRU), in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777–34A0137, dated August 26, 2005. (2) Revise the Limitations section of the Airplane Flight Manual (AFM) by inserting a copy of the Boeing operations manual bulletins in Table 1 of this AD. TABLE 1.—OPERATIONS MANUAL BULLETINS PART 39—AIRWORTHINESS DIRECTIVES Boeing 777 operations manual bulletin 1. The authority citation for part 39 continues to read as follows: (i) CS3–3093 .............. (ii) CS3–3155 ............. I Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 by removing amendment 39–14080 (70 FR 24703, May 11, 2005) and adding the I PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 53549 Date August 26, 2005. August 26, 2005. (g) When the information in the operations manual bulletins in Table 1 of this AD has been incorporated into the general revisions of the AFM, the general revisions may be incorporated into the AFM, and these operations manual bulletins may be removed from the AFM. E:\FR\FM\09SER1.SGM 09SER1 53550 Federal Register / Vol. 70, No. 174 / Friday, September 9, 2005 / Rules and Regulations Parts Installation (h) As of the effective date of this AD, only OPS, P/N 3470–HNC–100–03, may be loaded into the ADIRU. Alternative Methods of Compliance (AMOCs) (i) The Manager, Seattle 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. Related Information (j) None. Material Incorporated by Reference (k) You must use the service information in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. 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, P.O. Box 3707, Seattle, Washington 98124–2207, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL–401, Nassif Building, Washington, DC; on the Internet at http:// dms.dot.gov; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741–6030, or go to http://www.archives.gov/ federal_register/code_of_federal_regulations/ ibr_locations.html. TABLE 2.—MATERIAL INCORPORATED BY REFERENCE Service information Date Boeing Alert Service Bulletin 777–34A0137 ............................................................................................................................. Boeing 777 Operations Manual Bulletin CS3–3093 ................................................................................................................. Boeing 777 Operations Manual Bulletin CS3–3155 ................................................................................................................. Issued in Renton, Washington, on September 1, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–17762 Filed 9–8–05; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–20847; Directorate Identifier 2004–NE–35–AD; Amendment 39– 14261; AD 2005–18–20] RIN 2120–AA64 Airworthiness Directives; Goodrich Deicing and Specialty Systems ‘‘FASTprop’’ Propeller De-icers Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Goodrich De-icing and Specialty Systems ‘‘FASTprop’’ propeller de-icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271–10, P4E2575–7, P4E2575–10, P4E2598–10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975–11, installed. This AD requires inspection, repair, or replacement of those ‘‘FASTprop’’ propeller de-icers that fail daily visual checks. This AD results from reports of Goodrich ‘‘FASTprop’’ propeller deicers becoming loose or debonded, and detaching from propeller blades during operation. DATES: This AD becomes effective October 14, 2005. The Director of the VerDate Aug<18>2005 15:11 Sep 08, 2005 Jkt 205001 August 26, 2005. August 26, 2005. August 26, 2005. Federal Register approved the incorporation by reference of certain publications listed in the regulations as of October 14, 2005. ADDRESSES: Contact Goodrich De-icing and Specialty Systems, 1555 Corporate Woods Parkway, Uniontown, Ohio 44685, telephone (330) 374–3743, for the service information referenced in this AD. You may examine the AD docket on the Internet at http://dms.dot.gov or in Room PL–401 on the plaza level of the Nassif Building, 400 Seventh Street, SW., Washington, DC. FOR FURTHER INFORMATION CONTACT: Melissa T. Bradley, Aerospace Engineer, Chicago Aircraft Certification Office, FAA, 2300 East Devon Avenue, Des Plaines, IL 60018–4696; telephone (847) 294–8110; fax (847) 294–7834. SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 with a proposed airworthiness directive (AD). The proposed AD applies to Goodrich De-icing and Specialty Systems ‘‘FASTprop’’ propeller de-icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271–10, P4E2575–7, P4E2575–10, P4E2598–10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975–11. We published the proposed AD in the Federal Register on April 6, 2005 (70 FR 17361). That action proposed to require inspection, repair, or replacement of those ‘‘FASTprop’’ propeller de-icers that fail visual checks before the first flight each day. Friday, except Federal holidays. The Docket Office (telephone (800) 647– 5227) is located on the plaza level of the Department of Transportation Nassif Building at the street address stated in ADDRESSES. Comments will be available in the AD docket shortly after the DMS receives them. Examining the AD Docket You may examine the docket that contains the AD, any comments received, and any final disposition in person at the Docket Management System (DMS) Docket Office between 9 a.m. and 5 p.m., Monday through We have carefully reviewed the available data, including the comment received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We have determined that these changes will neither increase the PO 00000 Frm 00014 Fmt 4700 Sfmt 4700 Comments We provided the public the opportunity to participate in the development of this AD. We have considered the one comment received. The commenter states that we need to clarify the compliance section, and requests that any pilot be able to make required logbook entries after the visual check of propeller de-icers regardless of how the airplane is operated, whether under 14 CFR part 91, part 135, or part 121. The commenter interprets Goodrich De-icing and Specialty Systems Alert Service Bulletin (ASB) No. 30–60–00–1, dated November 15, 2004, as only allowing private pilots operating under 14 CFR part 91 to make the required logbook entries. We agree that we need to clarify the compliance section. Accordingly, we added the following statement to the compliance section of this AD: ‘‘Properly certificated maintenance personnel must perform the initial inspection required in this AD. Thereafter, the pilot or properly certificated maintenance personnel may perform the repetitive visual check.’’ Conclusion E:\FR\FM\09SER1.SGM 09SER1

Agencies

[Federal Register Volume 70, Number 174 (Friday, September 9, 2005)]
[Rules and Regulations]
[Pages 53547-53550]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-17762]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-22252; Directorate Identifier 2005-NM-182-AD; 
Amendment 39-14260; AD 2005-18-51]
RIN 2120-AA64


Airworthiness Directives; Boeing Model 777 Airplanes

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

ACTION: Final rule; request for comments.

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[[Page 53548]]

SUMMARY: This document publishes in the Federal Register an amendment 
adopting airworthiness directive (AD) 2005-18-51 that was sent 
previously to all known U.S. owners and operators of Boeing Model 777 
airplanes by individual notices. This AD supersedes an existing AD that 
applies to certain Boeing Model 777-200 and ``300 series airplanes. The 
existing AD currently requires modification of the operational program 
software (OPS) of the air data inertial reference unit (ADIRU). This 
new AD requires installing a certain OPS in the ADIRU, and revising the 
airplane flight manual to provide the flightcrew with operating 
instructions for possible ADIRU heading errors and for potential 
incorrect display of drift angle. This AD results from a recent report 
of a significant nose-up pitch event. We are issuing this AD to prevent 
the OPS from using data from faulted (failed) sensors, which could 
result in anomalies of the fly-by-wire primary flight control, 
autopilot, auto-throttle, pilot display, and auto-brake systems. These 
anomalies could result in high pilot workload, deviation from the 
intended flight path, and possible loss of control of the airplane.

DATES: This AD becomes effective September 14, 2005 to all persons 
except those persons to whom it was made immediately effective by 
emergency AD 2005-18-51, issued August 29, 2005, which contained the 
requirements of this amendment.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of September 14, 
2005.
    We must receive comments on this AD by November 8, 2005.

ADDRESSES: Use one of the following addresses to submit comments on 
this AD.
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401, 
Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, 
Washington 98124-2207, for service information identified in this AD.

FOR FURTHER INFORMATION CONTACT: Paul Feider, Aerospace Engineer, 
Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft 
Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-
4056; telephone (425) 917-6467; fax (425) 917-6590.

SUPPLEMENTARY INFORMATION:

Background

    On April 29, 2005, we issued AD 2005-10-03, amendment 39-14080 (70 
FR 24703, May 11, 2005), for certain Boeing Model 777-200 and ``300 
series airplanes. That AD requires modification of the operational 
program software (OPS) of the air data inertial reference unit (ADIRU) 
from software version part number (P/N) 3470-HNC-100-03 to software 
version P/N 3475-HNC-100-06 or 3474-HNC-100-07. That AD resulted from a 
report of the display of erroneous heading information to the pilot due 
to a defect in the OPS of the ADIRU. We issued that AD to prevent the 
display of erroneous heading information to the pilot, which could 
result in loss of the main sources of attitude data, consequent high 
pilot workload, and subsequent deviation from the intended flight path.

Actions Since Issuance of Previous AD

    On August 29, 2005, we issued emergency AD 2005-18-51, which 
applies to all Boeing Model 777 airplanes. That AD resulted from a 
recent report of a significant nose-up pitch event on a Boeing Model 
777-200 series airplane while climbing through 36,000 feet altitude. 
The flightcrew disconnected the autopilot and stabilized the airplane, 
during which time the airplane climbed above 41,000 feet, decelerated 
to a minimum speed of 158 knots, and activated the stick shaker. A 
review of the flight data recorder shows there were abrupt and 
persistent errors in the outputs of the ADIRU. These errors were caused 
by the OPS using data from faulted (failed) sensors. This problem 
exists in all software versions after P/N 3470-HNC-100-03, beginning 
with P/N 3477-HNC-100-04 approved in 1998 and including the versions 
mandated by AD 2005-10-03. While these versions have been installed on 
many airplanes before we issued AD 2005-10-03, they had not caused an 
incident until recently, and the problem was therefore unknown until 
then. OPS using data from faulted sensors, if not corrected, could 
result in anomalies of the fly-by-wire primary flight control, 
autopilot, auto-throttle, pilot display, and auto-brake systems, which 
could result in high pilot workload, deviation from the intended flight 
path, and possible loss of control of the airplane.

Relevant Service Information

    We have reviewed Boeing Alert Service Bulletin 777-34A0137, dated 
August 26, 2005. The service bulletin describes procedures for 
installing OPS, P/N 3470-HNC-100-03, in the ADIRU.
    We also have reviewed Boeing 777 Operations Manual Bulletin (OMB) 
CS3-3093, dated August 26, 2005, which describes operating instructions 
to inform the flightcrew of possible heading errors following on-ground 
automatic realignment of the ADIRU with the OPS, P/N 3470-HNC-100-03, 
installed.
    In addition, we have reviewed Boeing 777 OMB CS3-3155, dated August 
26, 2005, which describes operating instructions to inform the 
flightcrew of potential drift angle discrepancies on the primary flight 
display and the navigation display with the OPS, P/N 3470-HNC-100-03, 
installed.

FAA's Determination and Requirements of This AD

    Since the unsafe conditions described previously are likely to 
exist or develop on other airplanes of the same type design, we issued 
emergency AD 2005-18-51 to supersede AD 2005-10-03. This new AD 
requires accomplishing the actions specified in Boeing Alert Service 
Bulletin 777-34A0137, described previously. Because these actions 
reintroduce the unsafe condition identified in AD 2005-10-03, this new 
AD also requires revising the Limitation section of the Airplane Flight 
Manual by inserting a copy of Boeing 777 OMBs CS3-3093 and CS3-3155, 
described previously.

Interim Action

    We consider this AD interim action. The manufacturer is currently 
developing a modification that will address the unsafe condition 
identified in this AD and AD 2005-10-03. Once this modification is 
developed, approved, and available, we may consider additional 
rulemaking

FAA's Determination of the Effective Date

    We found that immediate corrective action was required; therefore, 
notice and opportunity for prior public comment thereon were 
impracticable and contrary to the public interest, and good cause 
existed to make the AD effective immediately by individual notices 
issued on August 29, 2005, to all known U.S. owners and operators of 
Boeing Model 777 airplanes. These conditions still exist, and the AD is

[[Page 53549]]

hereby published in the Federal Register as an amendment to Sec.  39.13 
of the Federal Aviation Regulations (14 CFR 39.13) to make it effective 
to all persons.

Comments Invited

    This AD is a final rule that involves requirements that affect 
flight safety and was not preceded by notice and an opportunity for 
public comment; however, we invite you to submit any relevant written 
data, views, or arguments regarding this AD. Send your comments to an 
address listed in the ADDRESSES section. Include ``Docket No. FAA-2005-
22252; Directorate Identifier 2005-NM-182-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the AD. We will consider 
all comments received by the closing date and may amend the AD in light 
of those comments.
    We will post all comments we receive, without change, to http://
dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this AD. Using the search function of our docket 
web site, anyone can find and read the comments in any of our dockets, 
including the name of the individual who sent the comment (or signed 
the comment on behalf of an association, business, labor union, etc.). 
You can review the DOT's complete Privacy Act Statement in the Federal 
Register published on April 11, 2000 (65 FR 19477-78), or you can visit 
http://dms.dot.gov.

Examining the Dockets

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

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.
    The FAA has determined that this regulation is an emergency 
regulation that must be issued immediately to correct an unsafe 
condition in aircraft, and that it is not a ``significant regulatory 
action'' under Executive Order 12866. It has been determined further 
that this action involves an emergency regulation under DOT Regulatory 
Policies and Procedures (44 FR 11034, February 26, 1979). If this 
emergency regulation is later deemed significant under DOT Regulatory 
Policies and Procedures, we will prepare a final regulatory evaluation 
and place it in the AD Docket. See the ADDRESSES section for a location 
to examine the regulatory evaluation, if filed.

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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
removing amendment 39-14080 (70 FR 24703, May 11, 2005) and adding the 
following new airworthiness directive (AD):

AD 2005-18-51 Boeing: Amendment 39-14260. Docket No. FAA-2005-22252; 
Directorate Identifier 2005-NM-182-AD.

Effective Date

    (a) This AD becomes effective September 14, 2005, to all persons 
except those persons to whom it was made immediately effective by 
emergency AD 2005-18-51, issued on August 29, 2005, which contained 
the requirements of this amendment.

Affected ADs

    (b) This AD supersedes AD 2005-10-03.

Applicability

    (c) This AD applies to all Boeing Model 777-200, -300, and -
300ER series airplanes, certificated in any category.

Unsafe Condition

    (d) This AD results from a recent report of a significant nose-
up pitch event. We are issuing this AD to prevent the operational 
program software (OPS) from using data from faulted (failed) 
sensors, which could result in anomalies of the fly-by-wire primary 
flight control, autopilot, auto-throttle, pilot display, and auto-
brake systems. These anomalies could result in high pilot workload, 
deviation from the intended flight path, and possible loss of 
control of the airplane.

Compliance

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

Installation of OPS

    (f) Within 72 hours after the effective date of this AD, do the 
actions specified in paragraphs (f)(1) and (f)(2) of this AD.
    (1) Install OPS, part number (P/N) 3470-HNC-100-03, in the air 
data inertial reference unit (ADIRU), in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 777-
34A0137, dated August 26, 2005.
    (2) Revise the Limitations section of the Airplane Flight Manual 
(AFM) by inserting a copy of the Boeing operations manual bulletins 
in Table 1 of this AD.

                  Table 1.--Operations Manual Bulletins
------------------------------------------------------------------------
Boeing 777 operations manual bulletin                 Date
------------------------------------------------------------------------
(i) CS3-3093.........................  August 26, 2005.
(ii) CS3-3155........................  August 26, 2005.
------------------------------------------------------------------------

    (g) When the information in the operations manual bulletins in 
Table 1 of this AD has been incorporated into the general revisions 
of the AFM, the general revisions may be incorporated into the AFM, 
and these operations manual bulletins may be removed from the AFM.

[[Page 53550]]

Parts Installation

    (h) As of the effective date of this AD, only OPS, P/N 3470-HNC-
100-03, may be loaded into the ADIRU.

Alternative Methods of Compliance (AMOCs)

    (i) The Manager, Seattle 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.

Related Information

    (j) None.

Material Incorporated by Reference

    (k) You must use the service information in Table 2 of this AD 
to perform the actions that are required by this AD, unless the AD 
specifies otherwise. 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, P.O. Box 3707, Seattle, Washington 98124-2207, for a copy 
of this service information. You may review copies at the Docket 
Management Facility, U.S. Department of Transportation, 400 Seventh 
Street SW., room PL-401, Nassif Building, Washington, DC; on the 
Internet at http://dms.dot.gov; or at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at the NARA, call (202) 741-6030, or go to http://
www.archives.gov/federal_register/code_of_federal_regulations/
ibr_locations.html.

              Table 2.--Material Incorporated by Reference
------------------------------------------------------------------------
          Service information                         Date
------------------------------------------------------------------------
Boeing Alert Service Bulletin 777-      August 26, 2005.
 34A0137.
Boeing 777 Operations Manual Bulletin   August 26, 2005.
 CS3-3093.
Boeing 777 Operations Manual Bulletin   August 26, 2005.
 CS3-3155.
------------------------------------------------------------------------


    Issued in Renton, Washington, on September 1, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-17762 Filed 9-8-05; 8:45 am]
BILLING CODE 4910-13-P