Woodward A-20572, Piston Cylinder Relief Valve Plug - Tempest PMA
Tempest AGA-20572-PMA
The Tempest AGA-20572 (Woodward OEM A-20572) is an FAA-PMA replacement piston cylinder relief valve plug for Woodward applications.
- Supports correct pressure relief operation by securing or limiting the relief valve cylinder components in the intended position.
- Helps prevent leakage and inconsistent pressure behavior when the original plug or stop shows damage, wear, or thread and sealing surface issues.
- Common replacement during overhaul or troubleshooting when relief valve function is being serviced and verified.
Depending on the manual and catalog, A-20572 is commonly described as a relief valve cylinder plug or a governor stop style part. Either way, it is directly tied to pressure control reliability in a constant speed governor.
Installation notes
Always refer to the approved maintenance and overhaul manual for full installation guidance before starting work.
- Replace any associated sealing washer, gasket, or O-ring as required by the approved maintenance data.
- Inspect the mating bore and relief valve parts for scoring or contamination before final assembly and test.
Applications and fitment
Used on governor assemblies where OEM A-20572 is specified. Confirm compatibility by matching the OEM part number and reviewing governor model and serial number applicability in the approved maintenance data.
Tempest AGA-20572 is the direct replacement for OEM A-20572. Match the OEM part number and confirm applicability by governor model and serial number in the approved maintenance data.
Pilot John International offers Tempest PMA propeller governor parts for propeller overhaul shops, FBOs, and aviation technicians to support aircraft maintenance and ground support.
| General Information | |
|---|---|
| Part # | AGA-20572 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.5 x 0.5 x 0.1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval | FAA-PMA replacement part |
| OEM P/N | A-20572 |
| System | Propeller governor pressure relief section |
| Tempest P/N | AGA-20572 |
| Type | Plug or stop component, relief valve cylinder area |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Cessna | 182 , 210 |
| Hawker Beechcraft | A24 , A24R - Sierra 200 , Beech Bonanza , Musketeer |
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QUESTIONS & ANSWERS
Tempest AGA-20572 is a direct FAA-PMA replacement for McCauley P/N A-20572. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AGA-20572 Relief Valve Cylinder Plug is designed for use in aircraft equipped with McCauley model C290D3 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AGA-20572 Relief Valve Cylinder Plug seals the relief valve bore and maintains pressure integrity. Proper sealing supports predictable relief valve operation and system protection.
PJi offers the Tempest AGA-20572 as an FAA-PMA-approved replacement for the McCauley A-20572 relief valve cylinder 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.
