[Federal Register Volume 60, Number 74 (Tuesday, April 18, 1995)]
[Notices]
[Pages 19442-19443]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-9503]



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DEPARTMENT OF TRANSPORTATION

Proposed Advisory Circular; Turbine Engine Vibration Survey

AGENCY: Federal Aviation Administration, DOT.

ACTION: Notice of availability of proposed advisory circulars and 
request for comments.

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SUMMARY: This notice announces the availability of Advisory Circular 
(AC), N0. 33.83, Turbine Engine Vibration Survey.

DATES: Comments must be received on or before May 18, 1995.

ADDRESSES: Send all comments on the proposed AC to the Federal Aviation 
Administration, Attn: Engine and Propeller Standards Staff, ANE-110, 
Engine and Propeller Directorate, Aircraft Certification Service, 12 
New England Executive Park, Burlington, MA, 10803-5299.
FOR FURTHER INFORMATION CONTACT: Thomas Boudreau, Engine and Propeller 
Standards Staff, ANE-110, 12 New England Executive Park, Burlington, 
MA, 01803, telephone (617) 238-7117, fax (617) 238-7199.

SUPPLEMENTARY INFORMATION:

Comments Invited

    A copy of the subject AC may be obtained by contacting the person 
named above under FOR FURTHER INFORMATION CONTACT. Interested persons 
are invited to comment on the proposed AC, and to submit such written 
data, views, or arguments as they desire, Commenters must identify 
[[Page 19443]] the subject of the AC, and submit comments in duplicate 
to the address specified above. All communications received on or 
before the closing date for comments will be considered by the Engine 
and Propeller Directorate, Aircraft Certification Service before 
issuance of the final AC.

Background

    The AC is on the subject of engine vibration tests and surveys, and 
was identified as one where differences existed between the Joint 
Aviation Requirements--Engines, and part 33 of the Federal Aviation 
Regulations. A study group composed of representatives of the Federal 
Aviation Administration, the Joint Aviation Authorities. Transport 
Canada and industry worked to produce a set of improved and harmonized 
requirements that was subsequently incorporated into part 33 of the 
FAR. This AC is intended to provide guidance in implementing these new 
harmonzied requirements during certification.
    These requirements have been published as a notice of proposed 
rulemaking in the Federal Register on March 16, 1995.
    This advisory circular, published under the authority granted to 
the Administrator by 49 U.S.C. 106(g), 49 U.S.C. App. 1354(a), 1421 and 
1423, provides guidance for these proposed requirements,

    Issued in Burlington, Massachusetts, on April 7, 1995.
James C. Jones,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 95-9503 Filed 4-17-95; 8:45 am]
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