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|Why do I need the Shadin Avionics ETM? |
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.
|Why is "WRONG KEY" being displayed? |
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.
|What does "Memory Status 123" mean? |
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.
|What is the default password set at the factory? |
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.
|What if I forget my password? |
- It is imperative to remember your password or the unit must be returned to the factory for repair.
|Will the Shadin Avionics ETM record exceedence data even if the key is not installed? |
- Yes. The Shadin Avionics ETM will continue to record exceedences in the exceedence file review section.
|What do I do if the fuel flow read-out is incorrect?|
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
|How often should the Data Key be downloaded? |
depends on how often the aircraft is flown. Shadin Avionics recommends
downloading the Data Key as often as possible, or at least once per
|How will I know when my data key is full?|
- The display will start flashing when the key is 80% full, and report the memory used in 5% increments thereafter.
|What will trend monitoring identify? |
section deterioration, hot starts, faulty fuel nozzles, dirty
compressors, foreign object damage, bleed leaks, and instrumentation
|Why should I monitor my engine trends? |
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.
|When should a trend monitoring program be implemented?|
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.
|How much does the system cost? |
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.
|Why is the Shadin Avionics ETM automatic trending better than the hand-trending?|
- Automated, non-biased record keeping eliminates the (subjective) human factor and saves hours of manual work.
|Will the Shadin Avionics ETM show me how the engine is doing by the fuel flow or by the temperature of the turbine section? |
- Yes. It also displays torque, NG (gas generator speed) and NP (prop speed).
|How long does the average ETM installation take? |
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.
|What is the cost/time required to trend data from the Shadin Avionics ETM automatically? |
- Trend houses like the Trend Group and DETA-TREND turn data analysis around in graphical format in less than six (6) hours.
|Can the Shadin Avionics ETM replace a different manufacturer's system installed at the factory? |
- Yes. Contact your Avionics Shop for details.
|Does the Shadin Avionics ETM do the trending? How does it relate to the P&W ECTM program? |
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.
|Does the Shadin Avionics ETM record exceedences? Cycles? Starts? Hot starts?|
- Yes. With the new Shadin Avionics Fleetview program in Windows format, this information is even easier to view.
|How is "exceedence" defined? |
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
|Aside from engine trending, what are the other features offered by the Shadin Avionics ETM?|
Shadin Avionics ETM system provides fuel flow, airdata, and back-up
navigation information. It also serves as a digital backup to the
|What happens if you wrap the Datakey? |
- Contact Shadin Avionics Technical Support Dept. for procedural details.
|What if my aircraft isn't listed on your STC list?|
- We may be able to help you with a Form 337 Field Approval or mutually pursue an STC. Contact Shadin Avionics Sales.
|What is the Pratt & Whitney H/ECTM? |
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.
|What kind of parameters are custom configured on the ETM for my aircraft?|
aircraft serial number, GPS models, reminder for annual inspections,
fuel units of measurement, engine serial number(s).
|What are the benefits of having my Shadin Avionics ETM interfaced with my GPS? |
the Shadin Avionics ETM is interfaced with your GPS, fuel management
information, airdata, wind direction and speed, etc. are displayed for