ETM Questions

Don't see an answer to your question here?

• Engine trend monitoring detects engine problems before secondary damage occurs. It may extend the aircraft's TBO which could result in dramatic savings. The Shadin Avionics ETM can reduce engine maintenance costs, reduce down time, and increase the market value of the aircraft. 

• Each key is data-stamped with the parameters of an individual aircraft. It is possible that a key specific to one aircraft being inserted in the wrong aircraft. Another possible reason is that particular parameters in the ETM may have been manually changed. Re-initialize the key after reading it using your PC and Key Reader.

• Memory is lost. The unit may be re-programmed in the field. Contact Technical Support for instructions. You may also choose to return the processor to Shadin Avionics for repair. Call Technical Support for a Return Material Authorization (RMA) number and quote. 

• Shadin Avionics sets the password at "A". This password remains until it is manually changed to a customized password of your choice. It is recommended that you record the password in a safe place.

• It is imperative to remember your password or the unit must be returned to the factory for repair.

• Yes. The Shadin Avionics ETM will continue to record exceedences in the exceedence file review section.

• Ensure the K-factor is set correctly to match the K-Factor imprinted on the side of the Transducer. Refer to the Engine Entry File chapter of the Security Section "Selecting the Fuel Flow K-Factor" procedure in the Operating Manual.

• It depends on how often the aircraft is flown. Shadin Avionics recommends downloading the Data Key as often as possible, or at least once per week.

• The display will start flashing when the key is 80% full, and report the memory used in 5% increments thereafter.

• Hot section deterioration, hot starts, faulty fuel nozzles, dirty compressors, foreign object damage, bleed leaks, and instrumentation errors.

• Early detection of engine problems may prevent costly secondary damage. It will lower engine maintenance cost, increase safety, reduce down time, and increase the marketability of your aircraft.

• Engine monitoring may begin at any time; the most accurate baseline is obtained when trend monitoring is implemented within the first one hundred (100) hours of engine life or once newly overhauled. If trend monitoring is started two to three (2 -3) months prior to overhaul or hot section inspection, it will provide a means of judging the effectiveness of a hot section or overhaul.

• Compare our system quote to the cost of a hot section inspection saved by using a Shadin Avionics ETM, and consider the cost of preventable, major repairs from deterioration in the gas path.

• Automated, non-biased record keeping eliminates the (subjective) human factor and saves hours of manual work. 

• Yes. It also displays torque, NG (gas generator speed) and NP (prop speed).

• This depends entirely on the number of engines, the installer's experience and whether or not the aircraft is already open for other modifications. An average ETM installation is 24 - 60 hours. Contact your local avionics shop for a firm quote.

• Trend houses like the Trend Group and DETA-TREND turn data analysis around in graphical format in less than six (6) hours. 

• Yes. Contact your Avionics Shop for details.

• No, It records the data to be trended. The Shadin Avionics Fleetview program assists this process and is now available in an easy-to-use WindowsTM format. The Shadin Avionics system is compatible with the P&W ECTM program.

• Yes. With the new Shadin Avionics Fleetview program in Windows format, this information is even easier to view.

• Exceedence is an event when the engine is pushed to parameters beyond the aircraft specifications. Shadin Avionics' ETM system is based on the airframe manufacturer's specifications which may differ from Pratt & Whitney's engine model specifications

• The Shadin Avionics ETM system provides fuel flow, airdata, and back-up navigation information. It also serves as a digital backup to the engine gauges.

• Contact Shadin Avionics Technical Support Dept. for procedural details. 

• We may be able to help you with a Form 337 Field Approval or mutually pursue an STC. Contact Shadin Avionics Sales. 

• This is trending software provided by Pratt & Whitney that Shadin Avionics' Fleetview program interfaces with that graphs ITT, FF, etc. over the course of the life of the engine.

• Your aircraft serial number, GPS models, reminder for annual inspections, fuel units of measurement, engine serial number(s). 

• When the Shadin Avionics ETM is interfaced with your GPS, fuel management information, airdata, wind direction and speed, etc. are displayed for your reference