2 failure reports named the adf in the last ten years, 6 since 1996, most often on the Learjet 35; the condition most often found was "burned out". 2 FAA approvals let 1 company make a replacement adf, Daico Industries INC holding the most (2).
Reports by year
Reports by year, as a table
reports
1996
1
1998
1
2013
1
2014
1
2017
2
Which system the reports file it under last ten years
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a adf and sell it as an approved part for the models named. These are the companies holding such approvals for a adf:
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.
