Teledyne Continental Motors, Inc.
TM
Glossary
IOF-240 Series Engine Maintenance and Overhaul Manual
A-7
29 November 2006
Term Definition
Secondary Power
Source
Redundant electrical power source for the FADEC System. It may be an engine-
driven device, such as an alternator or it may be a battery.
Secondary Power
Source Charge
Breaker
The SPS battery charging circuit breaker.
Secondary Power
Switch
Switch used for interrupting the secondary electrical supply to the FADEC
System.
Service Bulletin
Service document that contains information considered by the product
manufacturer to constitute a substantial improvement to the inherent safety of an
aircraft or component of an aircraft; also includes updates of instructions for
continued airworthiness.
Service Information
Directive
Service document that contains information determined by the manufacturer to be
of value to an owner/operator in the use of a product by enhancing safety,
maintenance, or economy.
Service Information
Letter
Service information communiqué that may be of use to the owner/operator or
maintainer of the aircraft.
Spalling
Distress to a loaded surface where chips of the hardened surface are broken out.
Speed Sensor
Assembly
Indicates crankshaft speed and position for ignition and injection timing.
Static Seal
Vital seal in the engine cylinder that consists of valve-to-valve seat seals, spark
plug-to-spark plug port seals, and cylinder head-to-barrel seal
Technical Standard
Order
FAA-designated number and identification mark indicating that the part or
appliance meets applicable design standards and was manufactured in
accordance with the requirements of FAR 21 Subpart O.
Throttle Position
Switch
The TPS is set to trip between three to five degrees before the
WIDE OPEN
THROTTLE
position. When tripped, the TPS signals the ECU that maximum
power is required which causes the FADEC System to instantly set the fuel-to-air
ratio for Best Power. This feature is necessary on fixed pitch applications, as
maximum rated engine power is not achievable during take-off roll and climb
where best power is needed
