Avionics – Transmission & Drive System Monitoring Instruments
The 90090006-01 XMSN Indicator (Transmission Indicator) is a critical dual-parameter cockpit instrument that displays transmission oil temperature and pressure. This instrument enables real-time monitoring of the main rotor transmission system, allowing the pilot and maintenance crew to detect potential drivetrain issues early and ensure safe flight operations.
Part Number: 90090006-01
- Installed in Bell 206, Bell 407, and other single and twin-engine turbine helicopters
- Commonly used in utility, EMS, law enforcement, and military missions
- Positioned in the main engine/transmission instrument panel cluster
PAG Support:
Precision Aviation Group (PAG) supports the 90090006-01 XMSN Indicator with:
- FAA/EASA-certified repair and overhaul services
- Inventory for exchange and outright purchase
- Calibration and testing of temperature/pressure circuits
- 24/7 AOG support for time-sensitive mission-critical aircraft +1.404.218.5777
- Technical support for installation and diagnostics
PAG ensures complete lifecycle support for your drivetrain monitoring instruments, maximizing uptime and safety.
Contact Us for Related Parts: Instruments frequently installed together.
- 90090001-02 – MGT (Measured Gas Temperature) Indicator
- 90090002-02 – Torque Indicator
- 90090003-01 – NG (Gas Generator Speed) Indicator
- 90090004-02 – Fuel Pressure Ammeter
- 90090005-01 – Fuel Quantity Indicator
- DL439 / 407-375-008-101 – Dual Tachometer Indicator
- 117-94053-03 – Triple Tachometer
Contact Us for Related Engine & Transmission Components: Components work with or support the operation of the XMSN Indicator:
- Transmission Oil Pressure Transmitter (e.g., 206-076-046-003) – Sends pressure data
- Transmission Oil Temperature Sensor (e.g., 206-076-060-001) – Monitors thermal data
- Main Transmission Assembly – Central rotor drivetrain unit
- ZCD-B9A023 – Contactor used in XMSN and engine electrical systems
- Torque Transducer (C3P15D6) – Works with torque and transmission systems
- XMSN Cooling Fan Assembly – Maintains operating temperatures
- Oil Filter and Pressure Relief Valve Assemblies – Protect and regulate the lubrication system
