Woodward 5261-036, Unfeathering Valve Assembly - Tempest PMA
Tempest AG5261-036-PMA
The Tempest AG5261-036 (Woodward OEM 5261-036) is an FAA-PMA replacement unfeathering valve assembly for Woodward applications.
- Supports unfeathering function by managing the governor oil control behavior required to move the propeller blades from feather toward governing range.
- Helps address unfeathering related faults where valve wear, contamination, or mechanical damage can prevent proper oil flow and response.
- Referenced in Woodward A210780 governor applications across multiple Beechcraft platforms, where unfeathering capability is essential for normal operations and certain emergency procedures.
In aviation maintenance, unfeathering performance is a safety and dispatch reliability concern, especially on twin engine aircraft where feather and unfeather capability is tied to operational procedures.
Installation notes
Refer to the applicable governor and engine maintenance manual for full installation procedures, torque values, and inspection requirements.
- Maintain strict cleanliness during installation to prevent debris from entering oil control passages.
- Verify correct orientation and any associated seals or retaining components per the maintenance manual.
- After installation, perform the unfeathering related functional checks specified in the approved data.
Applications and fitment
Eligibility references this assembly in aircraft applications where Woodward model A210780 reciprocating engine speed governors are installed, including multiple Beechcraft Baron and related models. Confirm compatibility by matching OEM 5261-036 and validating governor model and aircraft approved data.
Tempest AG5261-036 is the direct replacement for OEM 5261-036. Search by 5261-036 first, then confirm eligibility by Woodward governor model and the approved maintenance documentation.
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 # | AG5261-036 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.01 lbs. |
| Product Dimensions | 0.4 x 0.3 x 0.3 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Approval basis | FAA PMA (application dependent) |
| Governor family reference | Woodward A210780 parts grouping |
| Material and construction | Manufactured to the applicable OEM specification for fit and function. Confirm configuration details in the approved governor documentation. |
| OEM P/N | 5261-036 |
| Tempest P/N | AG5261-036 |
| Type | Unfeathering valve assembly (governor oil control component) |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* | |
|---|---|
| Cessna | 310 , 401 , 402 , 414 |
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QUESTIONS & ANSWERS
Tempest AG5261-036 is a direct FAA-PMA replacement for Woodward P/N 5261-036. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AG5261-036 Unfeathering Valve Assembly is designed for use in aircraft equipped with Woodward model A210780 propeller governors. Matching replacement parts to the correct governor model is essential to ensure proper fit, function, and reliable operation.
The Tempest AG5261-036 Unfeathering Valve Assembly controls oil flow during unfeathering operations. Reliable valve performance is essential for safe recovery from feathered states.
PJi offers the Tempest AG5261-036 as an FAA-PMA-approved replacement for the Woodward 5261-036 unfeathering valve assembly. 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.
