Aw Ground
No failure report names the aw ground. 2 FAA approvals let 1 company make a replacement aw ground, Sterling Helicopter holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a aw ground and sell it as an approved part for the models named. These are the companies holding such approvals for a aw ground:
For these models most: Leonardo Spa AW139 (2), Agusta Spa AB139 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sterling Helicopter | AW139 Aft Ground Plane Connector ST-21-520-10 | Modification Part | Leonardo S.p.a. AW139, AB139 | 2026-04-16 | current |
| Sterling Helicopter | AW139 Aft Ground Plane Connector ST-21-520-10 | Modification Part | Leonardo S.p.a.... AW139, AB139 | 2025-04-30 | 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.