Spring Brush
No failure report names the spring brush. 8 FAA approvals let 1 company make a replacement spring brush, Hartzell Engine Technologies LLC holding the most (8).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a spring brush and sell it as an approved part for the models named. These are the companies holding such approvals for a spring brush:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Lycoming Division... O-290-D, O-290-D2, O-290-D2A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Lycoming Engines O-235-A, O-235-AP, O-235-B | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Continental... A-50-1, A-50-3, A-50-4 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Continental Motors Inc A-40, A-40-2, A-40-3 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | AVCO Lycoming GO-145-C2, GO-145-C3, O-145-B2 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Franklin Sp. Z.o.o. 4A-235-B, 4A-235-B2, 4A-235-B3 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Textron Lycoming... IO-720-A1A, IO-720-A1B, IO-720-A1BD | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Spring & Brush Assembly AB-160844 | 10-160844 | Franklin Engine Company O-175-1, 4AC-176-B2, 4AC-176-B3 | 2025-11-10 | 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.