McCauley A-20116, Unfeather Spring Plug - Tempest PMA
Tempest AGA-20116-PMA
The Tempest AGA-20116 (McCauley OEM A-20116) is an FAA-PMA replacement unfeather spring plug for McCauley applications.
- Supports proper unfeather circuit integrity by sealing the specified port per the governor design.
- Helps prevent external oil seepage and internal bypass that can affect unfeather response and troubleshooting accuracy.
- Common replacement during overhaul or when the unfeather circuit is opened for inspection, cleaning, or parts replacement.
Unfeathering circuit reliability is especially important in multi engine aircraft operations and maintenance where returning a propeller from feather must be dependable.
Installation notes
Always refer to the approved maintenance and overhaul manual for full installation guidance before starting work.
- Replace any associated seal, gasket, or crush washer as required by the approved maintenance data.
- Use the specified torque and sealing method. Over-torque can damage threads or distort sealing surfaces.
Applications and fitment
Used on McCauley governors where OEM A-20116 is specified. Confirm eligibility by matching the OEM part number and reviewing governor model and serial number applicability in approved maintenance data.
Tempest AGA-20116 is the direct replacement for OEM A-20116. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International supplies Tempest PMA propeller governor components to propeller overhaul shops, FBOs, MROs, and aviation maintenance technicians supporting aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AGA-20116 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.5 x 0.2 x 0.2 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part |
| OEM P/N | A-20116 |
| System | McCauley propeller governor, unfeathering circuit |
| Tempest P/N | AGA-20116 |
| Type | Plug, unfeather |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Cessna | 310 |
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QUESTIONS & ANSWERS
Tempest AGA-20116 is a direct FAA-PMA replacement for McCauley P/N A-20116. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AGA-20116 Unfeathering Spring Plug is designed for use in aircraft equipped with McCauley model DCFU290D1 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AGA-20116 Unfeathering Spring Plug retains and protects the unfeathering spring within the assembly. Proper retention ensures proper spring preload and reliable unfeathering.
PJi offers the Tempest AGA-20116 as an FAA-PMA-approved replacement for the McCauley A-20116 unfeathering spring plug. 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.
