Suspected Unapproved Parts Details
Previously name EASA 2008-31.
Information received during a Federal Aviation Administration (FAA) investigation revealed that Aeronautical Technology, Inc., d.b.a. Aero Technology, a certificated repair station located at 3333 East Spring Street, Suite 311, Long Beach, CA 90806, overhauled and approved for return to service Honeywell Model IVA-81A, TCAS display indicators contrary to the regulations.
Aeronautical Technology, Inc., holds FAA Air Agency Certificate No. DQ3R458L.
Evidence indicates that Aero Technology approved display units that it did not overhaul in compliance with the methods, techniques, and practices prescribed in the current manufacturer’s maintenance manuals. Specifically, Aero Technology failed to install the required parts and correct part numbers during assembly of the display indicators. Discrepancies included, but are not limited to, the following:
1) Failure to install all required parts listed in the Honeywell parts manual and service bulletin ATA No. IVA-81A-34-63 (Pub No. 4693).
2) Failure to install the proper TCAS liquid crystal display in the Honeywell IVA-81A, Honeywell part number 043-20073-0005 and,
3) Failure to use proper test equipment in making airworthiness determinations for return to service of the display units.
