Airworthiness Directives; Honeywell International Inc. ATF3-6 and ATF3-6A Series Turbofan Engines, 14377-14378 [E8-5274]

Download as PDF Federal Register / Vol. 73, No. 53 / Tuesday, March 18, 2008 / Rules and Regulations Dated at Rockville, Maryland, this 12th day of March, 2008. For the Nuclear Regulatory Commission. Annette L. Vietti-Cook, Secretary of the Commission. [FR Doc. E8–5390 Filed 3–17–08; 8:45 am] BILLING CODE 7590–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–29092; Directorate Identifier 2007–NE–30–AD; Amendment 39– 15431; AD 2008–06–19] RIN 2120–AA64 Airworthiness Directives; Honeywell International Inc. ATF3–6 and ATF3–6A Series Turbofan Engines Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. rwilkins on PROD1PC63 with PROPOSALS AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Honeywell International Inc. ATF3–6 and ATF3–6A series turbofan engines equipped with a certain part number (P/N) low pressure compressor (LPC) aft shaft. This AD requires removing from service those LPC aft shafts and installing a serviceable LPC aft shaft. This AD results from reports of eight LPC aft shafts found cracked during fluorescent penetrant inspection (FPI). We are issuing this AD to prevent uncoupling and overspeed of the low pressure turbine, which could result in uncontained engine failure and damage to the airplane. DATES: This AD becomes effective April 22, 2008. ADDRESSES: You can get the service information identified in this AD from Honeywell International Inc., 111 S. 34th St., Phoenix, AZ 85034–2802; Web site: https://portal.honeywell.com/wps/ portal/aero; telephone (800) 601–3099. The Docket Operations office is located at Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. FOR FURTHER INFORMATION CONTACT: Joseph Costa, Aerospace Engineer, Los Angeles Aircraft Certification Office, FAA, Transport Airplane Directorate, 3960 Paramount Blvd., Lakewood, CA 90712–4137; e-mail: joseph.costa@faa.gov; telephone: (562) 627–5246; fax: (562) 627–5210. VerDate Aug<31>2005 16:03 Mar 17, 2008 Jkt 214001 The FAA proposed to amend 14 CFR part 39 with a proposed AD. The proposed AD applies to Honeywell International Inc. ATF3–6 and ATF3–6A series turbofan engines equipped with a certain part numbered LPC aft shaft. We published the proposed AD in the Federal Register on October 5, 2007 (72 FR 56945). That action proposed to require removing LPC aft shafts, P/N 3002070–1, from service and installing serviceable LPC aft shafts. SUPPLEMENTARY INFORMATION: 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 AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Comments We provided the public the opportunity to participate in the development of this AD. We received no comments on the proposal 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. Costs of Compliance We estimate that this AD will affect 32 ATF3–6 and ATF3–6A series turbofan engines installed on airplanes of U.S. registry. We also estimate that it will take about 40 work-hours per engine to perform the actions if unscheduled, 20 work-hours per engine if during scheduled major periodic inspection (MPI), and 1 work-hour per engine during scheduled core zone inspection (CZI). We estimate that four engines would be unscheduled, 14 engines would be scheduled at MPI, and 14 engines would be scheduled at CZI. The average labor rate is $80 per workhour. Required parts would cost about $15,000 per engine. Based on these figures, we estimate the total cost of the proposed AD to U.S. operators to be $516,320. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 14377 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 summary of the costs to comply with this AD and placed it in the AD Docket. 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. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the Federal Aviation Administration amends 14 CFR part 39 as follows: I 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 airworthiness directive: I E:\FR\FM\18MRR1.SGM 18MRR1 14378 Federal Register / Vol. 73, No. 53 / Tuesday, March 18, 2008 / Rules and Regulations 2008–06–19 Honeywell International Inc. (formerly AlliedSignal Inc. and Garrett Turbine Engine Co.): Amendment 39– 15431. Docket No. FAA–2007–29092; Directorate Identifier 2007–NE–30–AD. Effective Date (a) This airworthiness directive (AD) becomes effective April 22, 2008. Affected ADs Applicability (c) This AD applies to Honeywell International Inc. ATF3–6–4C, ATF3–6A–3C, and ATF3–6A–4C turbofan engines equipped with part number (P/N) 3002070–1 low pressure compressor (LPC) Aft shaft. These engines are installed on, but not limited to, Dassault Aviation Fan Jet Falcon Series G (Falcon 20G/HU25), and Dassault Aviation Mystere-Falcon 200 airplanes. Unsafe Condition (d) This AD results from reports of eight LPC aft shafts found cracked during (b) None. fluorescent penetrant inspection (FPI). We are issuing this AD to prevent uncoupling and overspeed of the low pressure turbine, which could result in uncontained engine 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 in Table 1 and Table 2 of this AD, unless the actions have already been done. TABLE 1.—ATF3–6A–4C TURBOFAN ENGINES, LPC AFT SHAFT REPLACEMENT COMPLIANCE SCHEDULE For ATF3–6A–4C turbofan engines, if the cycles-since-new (CSN) on the effective date of this AD are: Then replace the LPC Aft shaft: (1) (2) (3) (4) Within Within Within Within 6,500 or more CSN ....................................... 5,000 to 6,499 CSN ...................................... 4,000 to 4,999 CSN ...................................... Fewer than 4,000 CSN ................................. an an an an additional additional additional additional 100 cycles-in-service (CIS). 800 CIS, but not more than 6,600 CSN, whichever occurs first. 1,500 CIS, but not more than 5,800 CSN, whichever occurs first. 2,000 CIS, but not more than 5,500 CSN, whichever occurs first. TABLE 2.—ATF3–6–4C AND ATF3–6A–3C TURBOFAN ENGINES, LPC AFT SHAFT REPLACEMENT COMPLIANCE SCHEDULE For ATF3–6–4C and ATF3–6A–3C turbofan engines, if the CSN on the effective date of this AD are: Then replace the LPC Aft shaft: (1) (2) (3) (4) Within Within Within Within 4,400 or more CSN ....................................... 3,600 to 4,399 CSN ...................................... 3,300 to 3,599 CSN ...................................... Fewer than 3,300 CSN ................................. additional additional additional additional 100 CIS. 500 CIS, but not more than 4,500 CSN, whichever occurs first. 700 CIS, but not more than 4,100 CSN, whichever occurs first. 1,000 CIS, but not more than 4,000 CSN, whichever occurs first. (f) Using the compliance schedule in Table 1 or Table 2 of this AD as applicable, remove the LPC aft shaft, P/N 3002070–1, from service, and install a serviceable LPC aft shaft. Issued in Burlington, Massachusetts, on March 10, 2008. Robert J. Ganley, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–5274 Filed 3–17–08; 8:45 am] Definition BILLING CODE 4910–13–P (g) For the purpose of this AD, a serviceable LPC aft shaft is an aft shaft with a P/N not referenced in this AD. DEPARTMENT OF TRANSPORTATION Alternative Methods of Compliance Federal Aviation Administration (h) The Manager, Los Angeles 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. 14 CFR Part 39 Related Information rwilkins on PROD1PC63 with PROPOSALS LPC Aft Shaft Replacement an an an an RIN 2120–AA64 (i) Honeywell International Inc. Service Bulletin No. ATF3–72–6240, Revision 1, dated May 14, 2007, pertains to the subject of this AD. (j) Contact Joseph Costa, Aerospace Engineer, Los Angeles Aircraft Certification Office, FAA, Transport Airplane Directorate, 3960 Paramount Blvd., Lakewood CA 90712– 4137; e-mail: joseph.costa@faa.gov; telephone: (562) 627–5246; fax: (562) 627– 5210, for more information about this AD. Material Incorporated by Reference (k) None. VerDate Aug<31>2005 16:03 Mar 17, 2008 Jkt 214001 [Docket No. FAA–2007–0216; Directorate Identifier 2007–NM–122–AD; Amendment 39–15435; AD 2008–06–23] Airworthiness Directives; McDonnell Douglas Model DC–8–55, DC–8F–54, and DC–8F–55 Airplanes; and Model DC–8–60, DC–8–70, DC–8–60F, and DC–8–70F Series Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: The FAA is superseding an existing airworthiness directive (AD) PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 that applies to certain McDonnell Douglas Model DC–8–55, DC–8F–54, and DC–8F–55 airplanes; and Model DC–8–60, DC–8–70, DC–8–60F, and DC–8–70F series airplanes. The existing AD currently requires a one-time inspection for previous repairs of the aft fuselage skin panel at the longeron 28 skin splice, repetitive inspections for cracks of the same area, and related investigative and corrective actions. The existing AD also provides optional actions for extending the repetitive inspection intervals. This new AD redefines and more clearly describes the optional actions for extending the repetitive inspection intervals. This AD results from our determination that the inspections and actions described in the existing AD do not adequately address the unsafe condition. We are issuing this AD to detect and correct cracks in the aft fuselage skin at the longeron 28 skin splice, which could lead to loss of structural integrity of the aft fuselage, resulting in rapid decompression of the airplane. DATES: This AD becomes effective April 22, 2008. The incorporation by reference of certain publications listed in the AD was approved previously by the Director E:\FR\FM\18MRR1.SGM 18MRR1

Agencies

[Federal Register Volume 73, Number 53 (Tuesday, March 18, 2008)]
[Rules and Regulations]
[Pages 14377-14378]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-5274]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-29092; Directorate Identifier 2007-NE-30-AD; 
Amendment 39-15431; AD 2008-06-19]
RIN 2120-AA64


Airworthiness Directives; Honeywell International Inc. ATF3-6 and 
ATF3-6A Series Turbofan Engines

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

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
Honeywell International Inc. ATF3-6 and ATF3-6A series turbofan engines 
equipped with a certain part number (P/N) low pressure compressor (LPC) 
aft shaft. This AD requires removing from service those LPC aft shafts 
and installing a serviceable LPC aft shaft. This AD results from 
reports of eight LPC aft shafts found cracked during fluorescent 
penetrant inspection (FPI). We are issuing this AD to prevent 
uncoupling and overspeed of the low pressure turbine, which could 
result in uncontained engine failure and damage to the airplane.

DATES: This AD becomes effective April 22, 2008.

ADDRESSES: You can get the service information identified in this AD 
from Honeywell International Inc., 111 S. 34th St., Phoenix, AZ 85034-
2802; Web site: https://portal.honeywell.com/wps/portal/aero; telephone 
(800) 601-3099.
    The Docket Operations office is located at Docket Management 
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, 
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.

FOR FURTHER INFORMATION CONTACT: Joseph Costa, Aerospace Engineer, Los 
Angeles Aircraft Certification Office, FAA, Transport Airplane 
Directorate, 3960 Paramount Blvd., Lakewood, CA 90712-4137; e-mail: 
joseph.costa@faa.gov; telephone: (562) 627-5246; fax: (562) 627-5210.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 
with a proposed AD. The proposed AD applies to Honeywell International 
Inc. ATF3-6 and ATF3-6A series turbofan engines equipped with a certain 
part numbered LPC aft shaft. We published the proposed AD in the 
Federal Register on October 5, 2007 (72 FR 56945). That action proposed 
to require removing LPC aft shafts, P/N 3002070-1, from service and 
installing serviceable LPC aft shafts.

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 AD, the regulatory evaluation, 
any comments received, and other information. The street address for 
the Docket Operations office (telephone (800) 647-5527) is provided in 
the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We received no comments on the proposal 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.

Costs of Compliance

    We estimate that this AD will affect 32 ATF3-6 and ATF3-6A series 
turbofan engines installed on airplanes of U.S. registry. We also 
estimate that it will take about 40 work-hours per engine to perform 
the actions if unscheduled, 20 work-hours per engine if during 
scheduled major periodic inspection (MPI), and 1 work-hour per engine 
during scheduled core zone inspection (CZI). We estimate that four 
engines would be unscheduled, 14 engines would be scheduled at MPI, and 
14 engines would be scheduled at CZI. The average labor rate is $80 per 
work-hour. Required parts would cost about $15,000 per engine. Based on 
these figures, we estimate the total cost of the proposed AD to U.S. 
operators to be $516,320.

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 summary of the costs to comply with this AD and 
placed it in the AD Docket. 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.

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

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


[[Page 14378]]


2008-06-19 Honeywell International Inc. (formerly AlliedSignal Inc. 
and Garrett Turbine Engine Co.): Amendment 39-15431. Docket No. FAA-
2007-29092; Directorate Identifier 2007-NE-30-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective April 
22, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Honeywell International Inc. ATF3-6-4C, 
ATF3-6A-3C, and ATF3-6A-4C turbofan engines equipped with part 
number (P/N) 3002070-1 low pressure compressor (LPC) Aft shaft. 
These engines are installed on, but not limited to, Dassault 
Aviation Fan Jet Falcon Series G (Falcon 20G/HU25), and Dassault 
Aviation Mystere-Falcon 200 airplanes.

Unsafe Condition

    (d) This AD results from reports of eight LPC aft shafts found 
cracked during fluorescent penetrant inspection (FPI). We are 
issuing this AD to prevent uncoupling and overspeed of the low 
pressure turbine, which could result in uncontained engine 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 in Table 1 and 
Table 2 of this AD, unless the actions have already been done.

    Table 1.--ATF3-6A-4C Turbofan Engines, LPC Aft Shaft Replacement
                           Compliance Schedule
------------------------------------------------------------------------
   For ATF3-6A-4C turbofan
engines, if the  cycles-since-
  new (CSN) on the effective        Then replace the LPC Aft shaft:
     date of this AD are:
------------------------------------------------------------------------
(1) 6,500 or more CSN........  Within an additional 100 cycles-in-
                                service (CIS).
(2) 5,000 to 6,499 CSN.......  Within an additional 800 CIS, but not
                                more than 6,600 CSN, whichever occurs
                                first.
(3) 4,000 to 4,999 CSN.......  Within an additional 1,500 CIS, but not
                                more than 5,800 CSN, whichever occurs
                                first.
(4) Fewer than 4,000 CSN.....  Within an additional 2,000 CIS, but not
                                more than 5,500 CSN, whichever occurs
                                first.
------------------------------------------------------------------------


   Table 2.--ATF3-6-4C and ATF3-6A-3C Turbofan Engines, LPC Aft Shaft
                     Replacement Compliance Schedule
------------------------------------------------------------------------
 For ATF3-6-4C and ATF3-6A-3C
turbofan  engines, if the CSN
on the effective date of this       Then replace the LPC Aft shaft:
           AD are:
------------------------------------------------------------------------
(1) 4,400 or more CSN........  Within an additional 100 CIS.
(2) 3,600 to 4,399 CSN.......  Within an additional 500 CIS, but not
                                more than 4,500 CSN, whichever occurs
                                first.
(3) 3,300 to 3,599 CSN.......  Within an additional 700 CIS, but not
                                more than 4,100 CSN, whichever occurs
                                first.
(4) Fewer than 3,300 CSN.....  Within an additional 1,000 CIS, but not
                                more than 4,000 CSN, whichever occurs
                                first.
------------------------------------------------------------------------

LPC Aft Shaft Replacement

    (f) Using the compliance schedule in Table 1 or Table 2 of this 
AD as applicable, remove the LPC aft shaft, P/N 3002070-1, from 
service, and install a serviceable LPC aft shaft.

Definition

    (g) For the purpose of this AD, a serviceable LPC aft shaft is 
an aft shaft with a P/N not referenced in this AD.

Alternative Methods of Compliance

    (h) The Manager, Los Angeles 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.

Related Information

    (i) Honeywell International Inc. Service Bulletin No. ATF3-72-
6240, Revision 1, dated May 14, 2007, pertains to the subject of 
this AD.
    (j) Contact Joseph Costa, Aerospace Engineer, Los Angeles 
Aircraft Certification Office, FAA, Transport Airplane Directorate, 
3960 Paramount Blvd., Lakewood CA 90712-4137; e-mail: 
joseph.costa@faa.gov; telephone: (562) 627-5246; fax: (562) 627-
5210, for more information about this AD.

Material Incorporated by Reference

    (k) None.

    Issued in Burlington, Massachusetts, on March 10, 2008.
Robert J. Ganley,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. E8-5274 Filed 3-17-08; 8:45 am]
BILLING CODE 4910-13-P

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