Airworthiness Directives; General Electric Co. (GE) CF6-80A Series Turbofan Engines, 67433-67435 [E8-27080]

Download as PDF Federal Register / Vol. 73, No. 221 / Friday, November 14, 2008 / Proposed Rules Actions Compliance (5) Do not install any PFD (P/Ns 700–00006– 000, 700–00006–001, 700–00006–002, 700– 00006–003, or 700–00006–100) with any affected serial number listed in Avidyne Service Bulletin No. 601–00006–096, Revision 1, dated July 14, 2008, unless it has passed the air data system verification test or has been factory serviced (PFD bears a label marked ‘‘Deviation 08–19A’’ on the exterior of the PFD near the TSO label or a ‘‘MOD 52’’ marking). As of the effective date of this AD ................... Alternative Methods of Compliance (AMOCs) (g) The Manager, Boston Aircraft Certification 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: Solomon Hecht, Aerospace Engineer, ANE–150, Boston Aircraft Certification Office, 12 New England Executive Park, Burlington, Massachusetts 01803, phone: (781) 238–7159, fax: (781) 238–7170. 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. (h) AMOCs approved for AD 2008–06–28 R1 are approved for this AD. hsrobinson on PROD1PC76 with PROPOSALS Related Information (i) To get copies of the service information referenced in this AD, contact Avidyne Corporation, 55 Old Bedford Road, Lincoln, MA 01773; telephone: (781) 402–7400; fax: (781) 402–7599. To view the AD docket, go to U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, or on the Internet at https://www.regulations.gov. Appendix to Docket No. FAA–2008–1210 Limitations Regarding Avidyne Primary Flight Displays (PFDs) Before conducting flight operations, pilots must review and be familiar with the Crosscheck Monitor section of the Avidyne Primary Flight Display Pilot’s Guide and all limitations contained in the aircraft operating handbook. As a normal practice, all pilots should be vigilant in conducting proper preflight and in-flight checks of instrument accuracy, including: • Preflight check of the accuracy of both the primary and backup altimeter against known airfield elevation and against each other. • Verification of airspeed indications consistent with prevailing conditions at startup, during taxi, and prior to takeoff. • ‘‘Airspeed alive’’ check and reasonable indications during takeoff roll. • Maintenance of current altimeter setting in both primary and backup altimeters. • Cross-check of primary and backup altimeters at each change of altimeter setting and prior to entering instrument meteorological conditions (IMC). VerDate Aug<31>2005 16:24 Nov 13, 2008 Jkt 217001 Procedures • Cross-check of primary and backup altimeters and validation against other available data, such as glideslope intercept altitude, prior to conducting any instrument approach. • Periodic cross-checks of primary and backup airspeed indicators, preferably in combination with altimeter cross-checks. For flight operations under instrument flight rules (IFR) or in conditions in which visual reference to the horizon cannot be reliably maintained (that is IMC, night operations, flight operations over water, in haze or smoke) and the pilot has reasons to suspect that any source (PFD or back-up instruments) of attitude, airspeed, or altitude is not functioning properly, flight under IFR or in these conditions must not be initiated (when condition is determined on the ground) and further flight under IFR or in these conditions is prohibited until equipment is serviced and functioning properly. Operation of aircraft not equipped with operating backup (or standby) attitude, altimeter, and airspeed indicators that are located where they are readily visible to the pilot is prohibited. Pilots must frequently scan and crosscheck flight instruments to make sure the information depicted on the PFD correlates and agrees with the information depicted on the backup instruments. Issued in Kansas City, Missouri, on November 7, 2008. James E. Jackson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–27082 Filed 11–13–08; 8:45 am] BILLING CODE 4910–13–P PO 00000 67433 Not applicable. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2008–1206; Directorate Identifier 2008–NE–19–AD] RIN 2120–AA64 Airworthiness Directives; General Electric Co. (GE) CF6–80A Series Turbofan Engines Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for GE CF6–80A series turbofan engines with a high-pressure turbine rotor (HPTR) stage 1 disk, part number (P/N) 9367M45G06, installed. This proposed AD would require removing any HPTR stage 1 disk, P/N 9367M45G06, before exceeding 2,075 cycles-since-new (CSN). This proposed AD results from an error by GE that incorrectly cited a cyclic life of 12,600 CSN for the HPTR stage 1 disk, P/N 9367M45G06. We are proposing this AD to prevent the HPTR stage 1 disk from exceeding its part life which could cause fatigue cracks to start and grow. These cracks could result in a possible uncontained disk failure and damage to the airplane. DATES: We must receive any comments on this proposed AD by January 13, 2009. Use one of the following addresses to comment on this proposed AD. • Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. ADDRESSES: Frm 00012 Fmt 4702 Sfmt 4702 E:\FR\FM\14NOP1.SGM 14NOP1 67434 Federal Register / Vol. 73, No. 221 / Friday, November 14, 2008 / Proposed Rules • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: (202) 493–2251. FOR FURTHER INFORMATION CONTACT: Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: robert.green@faa.gov; telephone (781) 238–7754; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: hsrobinson on PROD1PC76 with PROPOSALS Comments Invited We invite you to send us any written relevant data, views, or arguments regarding this proposal. Send your comments to an address listed under ADDRESSES. Include ‘‘Docket No. FAA– 2008–1206; Directorate Identifier 2008– NE–19–AD’’ in the subject line of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light of those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed AD. Using the search function of the Web site, anyone can find and read the comments in any of our dockets, including, if provided, the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78). Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Operations office 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 Operations office (telephone (800) 647–5527) is the same as the Mail address provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Discussion During a recent GE internal audit, comparing the life-limited parts VerDate Aug<31>2005 16:24 Nov 13, 2008 Jkt 217001 certification documents to the part life limits specified in the Airworthiness Limitations Section of the Instructions for Continuing Airworthiness, GE found that the life limits for the CF6–80A series engines incorrectly specified a cyclic life of 12,600 CSN for the HPTR stage 1 disk, P/N 9367M45G06. GE has determined that the correct life limit for the HPTR stage 1 disk, P/N 9367M45G06, is 2,075 CSN. Failure to remove these disks from service before exceeding the new, reduced life limit of 2,075 CSN could result in fatigue cracks, leading to a possible uncontained disk failure and damage to the airplane. FAA’s Determination and Requirements of the Proposed AD We have evaluated all pertinent information and identified an unsafe condition that is likely to exist or develop on other products of this same type design. We are proposing this AD, which would require removing from service any HPTR stage 1 disk, P/N 9367M45G06, before it exceeds 2,075 CSN. Costs of Compliance We estimate that this proposed AD would affect 10 engines installed on airplanes of U.S. registry. We also estimate that it would take about 110 work-hours per engine to perform the proposed actions, and that the average labor rate is $80 per work-hour. Required parts would cost about $437,000 per engine. Based on these figures, we estimate the total cost of the proposed AD to U.S. operators to be $4,462,000. 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. PO 00000 Frm 00013 Fmt 4702 Sfmt 4702 Regulatory Findings We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that the proposed AD: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Would not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this proposed AD. You may get a copy of this summary at the address listed under ADDRESSES. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Under the authority delegated to me by the Administrator, the Federal Aviation Administration proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: General Electric Co. (GE): Docket No. FAA– 2008–1206; Directorate Identifier 2008– NE–19–AD. Comments Due Date (a) The Federal Aviation Administration (FAA) must receive comments on this airworthiness directive (AD) action by January 13, 2009. Affected ADs (b) None. Applicability (c) This AD applies to GE CF6–80A, CF6– 80A1, CF6–80A2, and CF6–80A3 turbofan engines with a high-pressure turbine rotor (HPTR) stage 1 disk, part number (P/N) 9367M45G06, installed. These engines are installed on, but not limited to, Airbus A310 series and Boeing 767 series airplanes. E:\FR\FM\14NOP1.SGM 14NOP1 Federal Register / Vol. 73, No. 221 / Friday, November 14, 2008 / Proposed Rules Unsafe Condition (d) This AD results from an error by GE that incorrectly cited a cyclic life of 12,600 CSN in the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness (ICA) for the HPTR, P/N 9367M45G06. We are issuing this AD to prevent the HPTR stage 1 disk from exceeding its part life which could cause fatigue cracks to start and grow. These cracks could result in a possible uncontained disk failure and damage to 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. New Reduced Life Limit for HPTR Stage 1 Disks, P/N 9367M45G06 (f) After the effective date of this AD, remove HPTR stage 1 disks, P/N 9367M45G06, from service before exceeding the new, reduced life limit of 2,075 cyclessince-new. Alternative Methods of Compliance (g) The Manager, Engine 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. Special Flight Permits (h) Under 14 CFR part 39.23, we are prohibiting any special flight permits. Related Information (i) Contact Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: robert.green@faa.gov; telephone (781) 238–7754; fax (781) 238– 7199, for more information about this AD. Issued in Burlington, Massachusetts, on November 7, 2008. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–27080 Filed 11–13–08; 8:45 am] BILLING CODE 4910–13–P COMMODITY FUTURES TRADING COMMISSION 17 CFR Parts 1 and 38 Execution of Transactions: Regulation 1.38 and Guidance on Core Principle 9 Commodity Futures Trading Commission. ACTION: Extension of comment period. hsrobinson on PROD1PC76 with PROPOSALS AGENCY: SUMMARY: On September 18, 2008, the Commission published in the Federal Register a notice of proposed rulemaking to amend its rules, guidance and acceptable practices concerning trading off the centralized market, including the addition of guidance on VerDate Aug<31>2005 16:24 Nov 13, 2008 Jkt 217001 67435 contract market block trading rules and exchanges of futures for commodities or derivatives positions. Comments on the proposal originally were due on November 17, 2008. The Commission is extending the comment period in order to give interested persons additional time to comment on the proposed amendments. Issued in Washington, DC, on November 10, 2008, by the Commission. Sauntia S. Warfield, Staff Assistant. [FR Doc. E8–27121 Filed 11–13–08; 8:45 am] Comments must be received by January 5, 2009. 28 CFR Part 58 DATES: Comments may be submitted by any of the following methods: • Federal eRulemaking Portal: https:// www.regulations.gov. • Mail/Hand Delivery: David Stawick, Secretary of the Commission, Commodity Futures Trading Commission, Three Lafayette Centre, 1155 21st Street, NW., Washington, DC 20581. • E-mail: secretary@cftc.gov. ADDRESSES: FOR FURTHER INFORMATION CONTACT: Gabrielle A. Sudik, Special Counsel, Division of Market Oversight; Telephone 202–418–5171; e-mail: gsudik@cftc.gov; Commodity Futures Trading Commission, Three Lafayette Center, 1155 21st Street, NW., Washington, DC 20581. On September 18, 2008, the Commission published in the Federal Register a notice of proposed rulemaking to amend its rules, guidance and acceptable practices concerning trading off the centralized market, including the addition of guidance on contract market block trading rules and exchanges of futures for commodities or derivatives positions. The comment period closes on November 17, 2008. By letter dated November 4, 2008, CME Group, Inc., requested an extension of the comment period until January 5, 2009. In order to encourage the submission of meaningful comments and to assure that all views are considered in its final determination, the Commission has determined to grant the request and to give full consideration to any comment received during the extension period. While the Commission has received some comment letters on the proposal, none yet have been from any designated contract markets, which have the responsibility of complying with Regulation 1.38 and Core Principle 9. Accordingly, the comment period for the Commission’s proposed amendments to Regulation 1.38 and Part 38 is hereby extended to January 5, 2008. SUPPLEMENTARY INFORMATION: PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 BILLING CODE 6351–01–P DEPARTMENT OF JUSTICE [Docket No: EOUST 104] RIN 1105–AB31 Application Procedures and Criteria for Approval of Providers of a Personal Financial Management Instructional Course by United States Trustees Executive Office for United States Trustees (‘‘EOUST’’), Justice. ACTION: Notice of proposed rulemaking. AGENCY: SUMMARY: This notice of proposed rulemaking (‘‘rule’’) sets forth proposed procedures and criteria United States Trustees shall use when determining whether applicants seeking to become and remain an approved provider of a personal financial management instructional course satisfy all prerequisites of the United States Code, as implemented under this rule. Under the current law, individual debtors must participate in an instructional course concerning personal financial management before receiving a discharge of debts. The current law enumerates mandatory prerequisites and minimum standards applicants seeking to become approved providers of a personal financial management instructional course must meet. Under this rule, United States Trustees will approve applicants for inclusion on publicly available provider lists in one or more federal judicial districts if an applicant establishes it meets all the requirements of the United States Code, as implemented under this rule. After obtaining such an approval, a provider shall be authorized to provide an instructional course in a federal judicial district during the time the provider remains approved. DATES: Submit comments on or before January 13, 2009. ADDRESSES: Comments on the rule may be submitted via https:// www.regulations.gov, by telefax to (202) 305–8536, or by postal mail to Executive Office for United States Trustees (‘‘EOUST’’), 20 Massachusetts Ave., NW., 8th Floor, Washington, DC 20530. To ensure proper handling of comments, please reference ‘‘Docket No. EOUST 104’’ on all written and electronic correspondence. E:\FR\FM\14NOP1.SGM 14NOP1

Agencies

[Federal Register Volume 73, Number 221 (Friday, November 14, 2008)]
[Proposed Rules]
[Pages 67433-67435]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-27080]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-1206; Directorate Identifier 2008-NE-19-AD]
RIN 2120-AA64


Airworthiness Directives; General Electric Co. (GE) CF6-80A 
Series Turbofan Engines

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for GE CF6-80A series turbofan engines with a high-pressure turbine 
rotor (HPTR) stage 1 disk, part number (P/N) 9367M45G06, installed. 
This proposed AD would require removing any HPTR stage 1 disk, P/N 
9367M45G06, before exceeding 2,075 cycles-since-new (CSN). This 
proposed AD results from an error by GE that incorrectly cited a cyclic 
life of 12,600 CSN for the HPTR stage 1 disk, P/N 9367M45G06. We are 
proposing this AD to prevent the HPTR stage 1 disk from exceeding its 
part life which could cause fatigue cracks to start and grow. These 
cracks could result in a possible uncontained disk failure and damage 
to the airplane.

DATES: We must receive any comments on this proposed AD by January 13, 
2009.

ADDRESSES: Use one of the following addresses to comment on this 
proposed AD.
     Federal eRulemaking Portal: Go to https://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility, U.S. Department of 
Transportation, 1200 New Jersey Avenue, SE., West Building Ground 
Floor, Room W12-140, Washington, DC 20590-0001.

[[Page 67434]]

     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
     Fax: (202) 493-2251.

FOR FURTHER INFORMATION CONTACT: Robert Green, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; e-mail: 
robert.green@faa.gov; telephone (781) 238-7754; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send us any written relevant data, views, or 
arguments regarding this proposal. Send your comments to an address 
listed under ADDRESSES. Include ``Docket No. FAA-2008-1206; Directorate 
Identifier 2008-NE-19-AD'' in the subject line of your comments. We 
specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of the proposed AD. We will consider 
all comments received by the closing date and may amend the proposed AD 
in light of those comments.
    We will post all comments we receive, without change, to https://
www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact 
with FAA personnel concerning this proposed AD. Using the search 
function of the Web site, anyone can find and read the comments in any 
of our dockets, including, if provided, the name of the individual who 
sent the comment (or signed the comment on behalf of an association, 
business, labor union, etc.). You may review the DOT's complete Privacy 
Act Statement in the Federal Register published on April 11, 2000 (65 
FR 19477-78).

Examining the AD Docket

    You may examine the AD docket on the Internet at https://
www.regulations.gov; or in person at the Docket Operations office 
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 Operations office (telephone (800) 647-5527) is 
the same as the Mail address provided in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

Discussion

    During a recent GE internal audit, comparing the life-limited parts 
certification documents to the part life limits specified in the 
Airworthiness Limitations Section of the Instructions for Continuing 
Airworthiness, GE found that the life limits for the CF6-80A series 
engines incorrectly specified a cyclic life of 12,600 CSN for the HPTR 
stage 1 disk, P/N 9367M45G06. GE has determined that the correct life 
limit for the HPTR stage 1 disk, P/N 9367M45G06, is 2,075 CSN. Failure 
to remove these disks from service before exceeding the new, reduced 
life limit of 2,075 CSN could result in fatigue cracks, leading to a 
possible uncontained disk failure and damage to the airplane.

FAA's Determination and Requirements of the Proposed AD

    We have evaluated all pertinent information and identified an 
unsafe condition that is likely to exist or develop on other products 
of this same type design. We are proposing this AD, which would require 
removing from service any HPTR stage 1 disk, P/N 9367M45G06, before it 
exceeds 2,075 CSN.

Costs of Compliance

    We estimate that this proposed AD would affect 10 engines installed 
on airplanes of U.S. registry. We also estimate that it would take 
about 110 work-hours per engine to perform the proposed actions, and 
that the average labor rate is $80 per work-hour. Required parts would 
cost about $437,000 per engine. Based on these figures, we estimate the 
total cost of the proposed AD to U.S. operators to be $4,462,000.

Authority for This Rulemaking

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

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that the proposed AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Would not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD. You may get a copy of this summary at the 
address listed under ADDRESSES.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Under the authority delegated to me by the Administrator, the 
Federal Aviation Administration 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:

General Electric Co. (GE): Docket No. FAA-2008-1206; Directorate 
Identifier 2008-NE-19-AD.

Comments Due Date

    (a) The Federal Aviation Administration (FAA) must receive 
comments on this airworthiness directive (AD) action by January 13, 
2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to GE CF6-80A, CF6-80A1, CF6-80A2, and CF6-
80A3 turbofan engines with a high-pressure turbine rotor (HPTR) 
stage 1 disk, part number (P/N) 9367M45G06, installed. These engines 
are installed on, but not limited to, Airbus A310 series and Boeing 
767 series airplanes.

[[Page 67435]]

Unsafe Condition

    (d) This AD results from an error by GE that incorrectly cited a 
cyclic life of 12,600 CSN in the Airworthiness Limitations Section 
(ALS) of the Instructions for Continued Airworthiness (ICA) for the 
HPTR, P/N 9367M45G06. We are issuing this AD to prevent the HPTR 
stage 1 disk from exceeding its part life which could cause fatigue 
cracks to start and grow. These cracks could result in a possible 
uncontained disk failure and damage to 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.

New Reduced Life Limit for HPTR Stage 1 Disks, P/N 9367M45G06

    (f) After the effective date of this AD, remove HPTR stage 1 
disks, P/N 9367M45G06, from service before exceeding the new, 
reduced life limit of 2,075 cycles-since-new.

Alternative Methods of Compliance

    (g) The Manager, Engine 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.

Special Flight Permits

    (h) Under 14 CFR part 39.23, we are prohibiting any special 
flight permits.

Related Information

    (i) Contact Robert Green, Aerospace Engineer, Engine 
Certification Office, FAA, Engine & Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; e-mail: 
robert.green@faa.gov; telephone (781) 238-7754; fax (781) 238-7199, 
for more information about this AD.

    Issued in Burlington, Massachusetts, on November 7, 2008.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
 [FR Doc. E8-27080 Filed 11-13-08; 8:45 am]
BILLING CODE 4910-13-P