Tempest AA1680-640-PMA
The Tempest AA1680-640 (Woodward OEM 1680-640) is an FAA-PMA overhaul sensor & o-ring kit.
- Helps maintain reliable governor-related sensing by replacing a wear-prone sensor component with the correct matched part number.
- Renews the O-ring seal to reduce seepage that can contaminate nearby components and degrade long-term reliability.
- Supports consistent operational checks and troubleshooting by returning the installation to a known-good baseline using OEM-referenced parts.
This kit is intended for aviation maintenance and governor overhaul shops where OEM part numbers drive search and cross-reference decisions.
Installation notes
Always refer to the applicable aircraft and governor maintenance manual for complete installation procedures.
- Follow approved maintenance data for removal and installation to avoid damage to sensor surfaces, wiring, and threaded bores.
- Lightly lubricate the new O-ring as specified by the manual and confirm it is seated correctly before final tightening.
- After installation, perform the required leak check and functional verification per the governor or synchronizer troubleshooting procedure.
Applications and fitment
This kit supports aviation line maintenance and overhaul workflows where the OEM 1680-640 is used to identify the correct sensor and seal components for Woodward governor configurations. Confirm compatibility by matching the OEM part number and reviewing approved fitment data for your governor model and serial number.
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 # | AA1680-640 |
| Manufacturer | Tempest |
| Shipping Information | |
|---|---|
| Product Weight | 0.06 lbs. |
| Product Dimensions | 3 x 2 x 1 in. |
| Schedule B | 8807300010 |
| ECCN | 9A991.d |
| Specifications | |
|---|---|
| Kit contents | Sensor with matched sealing O-ring (verify exact contents against the approved parts list for your governor model) |
| OEM P/N | 1680-640 (often shown as AA1680-640 in distribution catalogs)</li> |
| Tempest P/N | AA1680-640 |
| Type | Sensor and O-ring replacement kit for Woodward propeller governor applications |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
Tempest AA1680-640 is a direct FAA-PMA replacement for Woodward P/N 1680-640. Always verify compatibility with your specific propeller governor model and applicable maintenance documentation before placing an order.
The Tempest AA160-640 Sensor and O-Ring Kit provides the precision sensor and matched O-ring seals used in propeller governors to maintain accurate sensing function and prevent oil leakage around the sensor interface, helping preserve reliable RPM regulation and hydraulic integrity within the governor system.
PJi offers the Tempest AA1680-640 as an FAA-PMA-approved replacement for the Woodward 1680-640 Sensor and O-Ring Kit. 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.
