Engine Gearbox
No failure report names the engine gearbox. 18 FAA approvals let 2 companies make a replacement engine gearbox, Sterling Helicopter holding the most (17).
Approved replacement parts 18 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a engine gearbox and sell it as an approved part for the models named. These are the companies holding such approvals for a engine gearbox:
For these models most: Leonardo Spa AW109 (4), Airbus Helicopters EC-135 now H135 (4), Agustawestland Philadelphia Co AW119 (4), Agusta Spa A109 (4), Bell 407 (2), Bell 206 JetRanger and LongRanger (2), Md Helicopters Llc 369 (1), Md Helicopters Inc 500 (1), Md Helicopters Inc 369 (1), Bell 505 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Sterling Helicopter | ENGINE GEARBOX 1 INTL RMHA-000066-350 | Modification Part | Leonardo S.p.A. A109, A109A, A109A II | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX ACCEL RMHA-000059-120 | Modification Part | Bell Textron Canada Limited 505 | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX AFT ACCEL INTL RMHA-000084-240 | Modification Part | Leonardo S.p.A. AW119, AW119 MKII | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 2 ACCEL RMHA-000066-160 | Modification Part | Leonardo S.p.A. A109, A109A, A109A II | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX ACCEL RMHA-000032-120 | Modification Part | Bell Textron Canada Limited 206, 206A, 206A-1 (OH-58A) | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX FORWARD ACCEL RMHA-000084-130 | Modification Part | Leonardo S.p.A. AW119, AW119 MKII | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 1 ACCEL RMHA-000066-150 | Modification Part | Leonardo S.p.A. A109, A109A, A109A II | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX, INTL RMHA-000032-240 | Modification Part | Bell Textron Canada Limited 206, 206A, 206A-1 (OH-58A) | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 1 ACCEL INTL RMHA-000035-280 | Modification Part | Airbus Helicopters... EC135P1, EC135P2, EC135P2+ | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX AFT ACCEL RMHA-000084-140 | Modification Part | Leonardo S.p.A. AW119, AW119 MKII | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 2 ACCEL RMHA-000035-90 | Modification Part | Airbus Helicopters... EC135P1, EC135P2, EC135P2+ | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX FORWARD ACCEL INTL RMHA-000084-230 | Modification Part | Leonardo S.p.A. AW119, AW119 MKII | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 2 INTL RMHA-000066-360 | Modification Part | Leonardo S.p.A. A109, A109A, A109A II | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 2 ACCEL INTL RMHA-000035-290 | Modification Part | Airbus Helicopters... EC135P1, EC135P2, EC135P2+ | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX ACCEL RMHA-000029-160 | Modification Part | Bell Textron Canada Limited 407 | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX ACCEL INTL RMHA-000029-210 | Modification Part | Bell Textron Canada Limited 407 | 2025-12-22 | current |
| Sterling Helicopter | ENGINE GEARBOX 1 ACCEL RMHA-000035-80 | Modification Part | Airbus Helicopters... EC135P1, EC135P2, EC135P2+ | 2025-12-22 | current |
| Thoroughbred Aviation Maintenance, INC. | Engine Gearbox Breather Kit HT800 | Modification Article | MD Helicopters 369A, 369D, 369E | 2023-01-25 | 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.