Exceedance & Trend Monitor

Exceedance & Trend Monitor

Approved & Validated By:

EASA CAT.POL.H.305 Compliance

The AKV Exceedance and Trend Monitor ETM1000 is an Engine Data Acquisition Unit (EDAU). It provides legacy operators with a highly effective and affordable means to monitor and record all drive train parameters for exceedances and trending. The ETM1000 is the only system available that is programmed with the complete Rotorcraft Flight Manual (RFM) operating limitations and helps prevent an exceedance from being recorded by providing alert tones to the pilot in conjunction with panel mounted pushbutton annunciators with caution and warning indication. A dedicated instrument panel mounted power check pushbutton and health indication is also provided.

As an options, the ETM1000 can provided cycle counting for the Arriel 1 and LTS101 engines via a dedicated display with back light, our patented iOS Remote Gauge App (for the Arriel 1D1) or 3rd party Flight Data Recorders (FDR) system interface for live data streaming. FDR purchased separately.

Recorded data from the ETM1000 is easily offloaded via an SD card, or in real time when connected to a 3rd party satellite or cellular tracking system. This data is then viewed with the supplied graphing and trending software to meet FAA FOQA and EASA AMC2 CAT.POL.H.305(b) system requirements.

Parameters recorded include:

  • N1 - Gas Producer
  • N2 - Free Turbine
  • Nr - Rotor
  • MGT - Measured Gas Temperature
  • Tq - Torque
  • OAT - Outside Air Temperature Probe
  • PA - Pressure Altitude
  • Airspeed Switch
  • Flight Time
  • Engine Run Time
  • Engine Starts
  • Aircraft Registration No.

System Features include:

  • Field programming
  • Quick Access Recorder (QAR) via SD card
  • Power check recording
  • Interface with all existing engine and
    airframe signal generators
  • Optional 3rd party FDM/satellite data connection
  • Custom graphing  / trending software
  • Optional Cycle Counting (Arriel 1 and LTS101) with Remote Display and Exceedance information
  • Optional iOS Remote Gauge App for HESLO (Arriel 1D1)
Custom Graphing / Trending Viewer

Included in this kit:

Available cycle counters for:

Kit P/N ETM1000 supplied with a fully assembled airframe wire harness including graphing/trending software

Utility Operators:

Optional iOS Remote Gauge App for the ETM1000

*iPhone Shown

Approved for use in:

Airbus Helicopters AS350C, D, D1, B, BA, B1, B2, B2 (VEMD) with Arriel 1 or LTS101 Engines


It has been absolutely flawless!

"And as for the performance of the equipment, it has been absolutely flawless.  You build a fantastic product and we couldn’t be happier with it.  I refuse to field a SD1 or SD2 engine without your ETM1000 installed.  To me its that important.  Personally, I think it should be integrated into the STC, but that’s a whole other discussion."

Justin M. Kallner, Director of Maintenance
US Helicopters Inc.