As a heads up the FAA just released an Unapproved Parts Notification on various systems produced by Aviation Communication and Surveillance Systems (ACSS). The FAAs background info on the issue  indicates that “information received during a FAA suspected unapproved parts investigation (SUP), confirmed that ACSS shipped TCAS and transponder units with suspected unapproved component parts between early 2009 and 2012 in the units...

For those of you interested the lastest newsletter, it is posted here;  Jul 2012 SFF Newsletter

The question came up as to whether all Technical Standard Order Authorization (TSOA) holders here in the U.S. are required to apply for and received ETSO validation through EASA prior to exporting those TSOd articles to a member country. Here’s what the EASA Technical Implementation Procedures (TIP) state; 5.1.6 New TSO Appliances Including APUs That Have Been Granted an ETSO, JTSO Authorisation, or Other National Approval. (a) An...