Unapproved Parts Notification Dukes Aerospace

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Unapproved Parts Notification Dukes Aerospace



Flight Standards Service


Aviation Safety

No.: 2014-20130403005

Date: July 8, 2014



Aircraft components approved for return to service by Dukes Aerospace Incorporated.


The purpose of this notification is to advise all aircraft owners, operators, manufacturers, maintenance organizations, and parts suppliers and distributors regarding improper maintenance performed on aircraft components.


Information received during a Federal Aviation Administration (FAA) Suspected Unapproved Parts (SUP) investigation revealed between March 2011 and March 2013 Dukes Aerospace Incorporated, located at 9060 Winnetka Avenue, Northridge, CA 91324, improperly maintained, overhauled, and approved for return to service various aircraft articles (listed later in this document) which were manufactured by Dukes Incorporated/Dukes Aerospace Incorporated contrary to the regulations. Dukes Aerospace Incorporated holds FAA Air Agency Certificate No. 1DUR590B with Accessory Class 1 and 2 Ratings.

Evidence indicates that Dukes Aerospace Incorporated approved aircraft articles for return to service that were not maintained in compliance with the manufacturer’s maintenance manuals or other data acceptable to the FAA. Discrepancies include, but are not limited to the following: (1) approving articles for return to service without using methods techniques and practices acceptable to the Administrator (2) converting and/or modifying aircraft components without using approved data.


Regulations require that type-certificated products conform to their type design. Aircraft owners, operators, manufacturers, maintenance organizations, and parts suppliers and distributors should inspect their aircraft, aircraft records, and/or articles inventories for aircraft components approved for return to service by Dukes Aerospace Incorporated Appropriate action should be taken if any referenced affected articles have been installed on an aircraft. If any existing inventory includes these affected articles, the FAA recommends that you quarantine the affected articles to prevent installation on an aircraft until a determination can be made regarding eligibility for installation.


Further information concerning this investigation, and guidance regarding these affected articles, can be obtained from the FAA Flight Standards District Office (FSDO) given below. The FAA would appreciate any information concerning the discovery of the referenced affected articles, the means used to identify the source, and the actions taken to remove the affected articles from aircraft and/or stock.

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