ROTOR RPM DETECTOR (P/N 704a37-720-009) - Serviceable
P/N: 704a37-720-009
Category: Sensors
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| Serviceable | 1 Available |
Product Description
The 704a37-720-009 is a non-contact magnetic pickup rotor RPM detector for helicopter tachometer systems. This sensor detects main-rotor speed by reading ferrous target rotations and converts the signal into frequency output for rotor tachometer indicators and FADEC control units. Mounted adjacent to the rotor target assembly, the detector provides real-time Nr (main rotor RPM) monitoring critical for flight operations and engine management.
Installation follows aircraft maintenance manual procedures with proper positioning and electrical connection to the indicator system.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the ROTOR RPM DETECTOR (P/N 704a37-720-009)?
The 704a37-720-009 is a non-contact magnetic pickup rotor RPM detector for helicopter tachometer systems. This sensor detects main-rotor speed by reading ferrous target rotations and converts the signal into frequency output for rotor tachometer indicators and FADEC control units.
Is the 704a37-720-009 calibrated and ready to install?
Calibration status depends on the condition. Overhauled instruments come fully calibrated with an 8130-3 tag. The ROTOR RPM DETECTOR is available in: Serviceable. Contact us to confirm calibration status for your selected condition.
Can the 704a37-720-009 be used as a direct replacement in my aircraft?
The ROTOR RPM DETECTOR is designed as a form-fit-function replacement. Verify the part number against your aircraft's Illustrated Parts Catalog (IPC) and instrument panel layout to confirm compatibility before ordering.
Do you offer instrument exchange programs for the 704a37-720-009?
Yes, we offer core exchange programs on select instruments. Send your unserviceable unit and receive a discount on the replacement. Call (904) 998-9101 or submit an RFQ to check exchange availability for the 704a37-720-009.
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