Governor Oil
No failure report names the governor oil. 3 FAA approvals let 2 companies make a replacement governor oil, Hartzell Engine Technologies LLC holding the most (2).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a governor oil and sell it as an approved part for the models named. These are the companies holding such approvals for a governor oil:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hartzell Engine Technologies LLC | Governor oil line AH790-1 | Lycoming 75167 | Lycoming O-235-E2A, G2A, M1 | 2013-02-24 | current |
| Hartzell Engine Technologies LLC | Governor oil line AH790-1 | Lycoming 75167 | Lycoming O-235-E2A, G2A, M1 | 2010-10-21 | current |
| Aeroheat INC | Governor Oil Line AH790-1 | Textron 75167 | Textron Lycoming O-235-E2A, -G2A, -M1 | 1991-10-16 | current |
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.