[Federal Register Volume 62, Number 74 (Thursday, April 17, 1997)]
[Proposed Rules]
[Page 18726]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-9882]


========================================================================
Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

========================================================================


Federal Register / Vol. 62, No. 74 / Thursday, April 17, 1997 / 
Proposed Rules

[[Page 18726]]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 86-ANE-13]
RIN 2120-AA64


Airworthiness Directives; CFM International CFM56-3 and -3B 
Series Turbofan Engines

AGENCY: Federal Aviation Administration, DOT.

ACTION: Proposed rule; withdrawal.

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

SUMMARY: This action withdraws a notice of proposed rulemaking that 
would have added a new airworthiness directive (AD), applicable to CFM 
International (CFMI) CFM56-3 and -3B series turbofan engines. That 
action proposed to amend an existing AD and would have required the 
installation of a riveted oil distributor, Part Number (P/N) 335-305-
804-0. Since the issuance of the NPRM, the manufacturer has advised the 
Federal Aviation Administration (FAA) that the entire CFM56-3 and -3B 
fleet has been retrofitted with the new riveted oil distributor, P/N 
335-305-804-0, and that there are no oil distributors, P/N 335-305-800-
0, presently in service. The FAA has therefore reviewed its position, 
and has concluded that the proposed actions are unnecessary. 
Accordingly, the proposed rule is withdrawn.

FOR FURTHER INFORMATION CONTACT: Glorianne Messemer, Aerospace 
Engineer, Engine Certification Office, FAA, Engine and Propeller 
Directorate, 12 New England Executive Park, Burlington, MA 01803-5299; 
telephone (617) 238-7132, fax (617) 238-7199.

SUPPLEMENTARY INFORMATION:

    A proposal to amend part 39 of the Federal Aviation Regulations (14 
CFR part 39) to supersede an airworthiness directive (AD), applicable 
to CFM International (CFMI) CFM56-3 and -3B engines, was published in 
the Federal Register on December 2, 1986 (51 FR 43383). The proposed 
rule would have amended the existing AD that requires initial and 
repetitive inspections of the transfer gearbox for radial driveshaft 
oil distributor looseness and condition of the spirolock. The proposed 
rule would have required a riveted oil distributor, Part Number (P/N) 
335-305-804-0, to be installed in accordance with CFMI CFM56-3/-3B 
Service Bulletin No. 72-253, dated June 27, 1986, as a terminating 
action to the repetitive inspection program.
    Since the issuance of the NPRM, the manufacturer has advised the 
Federal Aviation Administration (FAA) that the entire CFM56-3 and -3B 
fleet has been retrofitted with the new riveted oil distributor, P/N 
335-305-804-0, and that there are no oil distributors, P/N 335-305-800-
0, presently in service, nor does the manufacturer plan to introduce 
any into service in the future. The installation of the riveted oil 
distributor provides a permanent fix for oil distributor looseness and 
eliminates the need for repetitive inspections. The FAA has therefore 
reviewed its position, and has concluded that the proposed actions are 
unnecessary.
    Accordingly, the proposed rule is hereby withdrawn.
    Withdrawal of this final rule constitutes only such action, and 
does not preclude the agency from issuing another notice in the future, 
nor does it commit the agency to any course of action in the future.
    Since this action only withdraws a notice of proposed rulemaking, 
it is neither a proposed nor a final rule and therefore, is not covered 
under Executive Order 12866, the Regulatory Flexibility Act, or DOT 
Regulatory Policies and Procedures (44 FR 11034, February 26, 1979).

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Withdrawal

    Accordingly, the Notice of Proposed Rulemaking, Docket 86-ANE-13, 
published in the Federal Register on December 2, 1986 (51 FR 43383), is 
withdrawn.

    Issued in Burlington, Massachusetts, on April 8, 1997.
Jay J. Pardee,
Manager, Engine and Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 97-9882 Filed 4-16-97; 8:45 am]
BILLING CODE 4910-13-U