On March 12, 2018 the FAA has published a SAFO (Safety Alert for Operators) 18002.
This SAFO alerts aircraft owners, operators, air agencies, and maintenance technicians of improper overhaul performed by Aircraft Technical Support, Inc. (ATS) Repair Station, which previously held Federal Aviation Administration (FAA) Certificate No. UX7R295Y.
The improper overhaul includes aircraft ejection jacks (part numbers 114160005 and 114160004A), aircraft shaft assembly (part number CHA704-786), and aircraft ball screw assembly (part number 554265-1).
Refer to SAFO 18002 issued by FAA.