McCauley A-20117, Flyweight Damper Washer - Tempest PMA
Tempest AGA-20117-PMA
The Tempest AGA-20117 (McCauley OEM A-20117) is an FAA-PMA replacement flyweight damper washer for McCauley applications.
- Helps damp flyweight movement to reduce hunting tendencies and improve steady-state RPM stability when the system is correctly assembled and calibrated.
- Supports consistent governor response by maintaining the intended friction and spacing characteristics within the flyweight damping stack.
- Commonly replaced during overhaul when wear, glazing, distortion, or contamination is found in the damping components.
Flyweight damping is a detail that matters in aircraft governors because it influences feel, stability, and long-term wear patterns.
Installation notes
These notes are general guidance only; always refer to the approved maintenance and overhaul manual for complete installation procedures.
- Replace damper components as a set if required by the overhaul manual to maintain consistent damping behavior.
- Keep the flyweight area clean. Contamination can change damping characteristics and accelerate wear.
Applications and fitment
Used on McCauley governors where OEM A-20117 is specified. Confirm compatibility by matching the OEM part number and reviewing governor model and serial number applicability in approved maintenance data.
Tempest AGA-20117 is the direct replacement for OEM A-20117. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International stocks Tempest PMA propeller governor parts for propeller overhaul shops, MROs, FBOs, and A&P mechanics supporting aircraft maintenance and ground support operations.
| General Information | |
|---|---|
| Part # | AGA-20117 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.02 lbs. |
| Product Dimensions | 1.3 x 1.3 x 0.1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part |
| OEM P/N | A-20117 |
| System | McCauley propeller governor, flyweight damping assembly |
| Tempest P/N | AGA-20117 |
| Type | Washer, flyweight damper |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Hawker Beechcraft | 95-55 - Baron , 95-A55 - Baron , 95-B55 - Baron , 95-C55 - Baron , D55 - Baron |
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QUESTIONS & ANSWERS
Tempest AGA-20117 is a direct FAA-PMA replacement for McCauley P/N A-20117. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AGA-20117 Flyweight Damper Washer is designed for use in aircraft equipped with McCauley model DCFUS290D9 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AGA-20117 Flyweight Damper Washer absorbs motion and vibration within the flyweight system. Damping reduces oscillation and helps prevent governor hunting.
PJi offers the Tempest AGA-20117 as an FAA-PMA-approved replacement for the McCauley A-20117 flyweight damper washer. View our full selection of Tempest propeller governor parts to find the correct component for your application.
For a deeper look at how propeller governors work, why proper maintenance matters, and how to identify compatible replacement components, refer to our Ultimate Guide to Aircraft Propeller Governor Maintenance.
