This notice introduces the new Letter of Deviation Authority
(LODA) J552, Restricted Category Civil Aircraft Type Rating Training, Testing, and Checking
Limitations, to be issued, via the Web-based Operations Safety System (WebOPSS), to operators
providing training and testing in restricted category civil aircraft requiring a type rating. This
notice also provides the associated guidance to Federal Aviation Administration (FAA) aviation
safety inspectors (ASI) to issue the LODA

This notice provides information and guidance regarding an
extensive revision of Advisory Circular (AC) 120-17, Maintenance Control by Reliability
Methods. The revised guidance is expected to be published in the near future.

This order provides guidance applicable to the data approval
process for major repairs and alterations, including field approvals. The source basis for this
order is Title 14 of the Code of Federal Regulations (14 CFR) part 43.