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Usage Notes:
• None at this time.
ENGINE SEPARATION (SCF–PP–ES)
Separation of the engine, with or without the strut/pylon or attaching structure.
Usage Notes:
• Events resulting from ground contact are excluded.
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FALSE/MISLEADING INDICATION (SCF–PP–FMI)
Powerplant or propeller indication that was appreciably different from reality, to the point
where an indication difference was noticed by the pilot or subsequent investigation.
Usage Notes:
• Includes parameters that were higher than actuality, lower than actuality or completely
absent, and also discrete warnings or alerts that were falsely present or absent.
FLAMMABLE FLUID LEAK (SCF–PP–FFL)
Leak of fuel, oil or hydraulic fluid into the pylon or dry bay, or under the engine cowls,
which could credibly lead to a fire.
Usage Notes:
• Leaks collected from shrouds and components and drained directly overboard by a dedicated
drain are excluded, as are drips and seeps.
GEARBOX/STARTER UNCONTAINMENT (SCF–PP–GBXU)
The release of debris originating in the gearbox and/or starter outside of the engine nacelle.
Usage Notes:
• Other gearbox/starter malfunctions are documented as “Other engine malfunction.”
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IN-FLIGHT SHUTDOWN (IFSD) (SCF–PP–IFSD)
Engine ceases to function between aircraft rotation and touch-down and slows down to
sub-idle whether self-induced, flight crew initiated or caused by an external influence.
Usage Notes:
• Excludes:
- The airborne cessation of the functioning of an engine when immediately
followed by automatic engine relights.
- When desired thrust or power is not achieved and engine is not shutdown.
• Includes IFSD for all causes: for example, flameout, internal failure, flight crew initiated
shutdown, foreign object ingestion, and icing.
• Multiple shutdowns of an engine for the same cause, followed by restarts, should be
considered as one event.
LOSS OF ENGINE FUNCTIONALITY/ENGINE MALFUNCTIONPROCEDURAL
TRIGGER (SCF–PP–LOE)
An event caused by a propulsion system (including propeller system) malfunction or
improper operation that was initiated by crew action.
Usage Notes:
• Excludes sabotage, gross negligence, and suicide.
• Not counted are events from very indirect means such as engine malfunction resulting from
flying the airplane into the ground or running the airplane into equipment on the
taxiway/runway.
MAINTENANCE FINDING (SCF–PP–MF)
A finding resulting in an engine removed from service due to potential result of an
engine event.
Usage Notes:
• None at this time.
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MULTIPLE-ENGINE POWER LOSS (SCF–PP–MEPL)
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SYSTEM/COMPONENT FAILURE OR MALFUNCTION (POWERPLANT) (SCF–PP) SUB-CATEGORY DEFINITIONS AND USAGE NOTES(4)
