Oil System Malfunction/Low Oil Pressure/CHIP Flashcards
For what conditions will you use the oil system malfunction or low oil pressure checklist?
- Red OIL PX annunciator
- Amber OIL PX annunciator
- Oil PX Fluctuations
- Oil Temp out of limits
- Visibly confirmed leaking oil from the aircraft
If an OIL PX annunciator illuminates, when should you first check the OIL TRX circuit breaker on the battery bus?
Are you allowed to re-set the circuit breaker if it is popped?
If the oil pressure indicates <5 psi
Yes
What is the indication for a SCU failure?
Illumination of both red and amber OIL PX annunciators while the oil pressure gage indicates normal pressure
Does any illumination of the amber OIL PX annunciator indicate a malfunction?
No, due to the sensitivity of the SCU a momentary illumination of the amber OIL PX annunciator may appear.
How long must the amber OIL PX annunciator be illuminated for consider the oil system to actually be malfunctioning?
5 seconds
What should you be cautious of in regards to your power settings with an oil malfunction or low oil pressure?
Use caution with high power settings because it may aggravate the condition
How does the oil system detect temperature and pressure?
They are sensed by transducers downstream of the main oil pump and the signal is sent to the EDM
With the engine shut down, what may oil px indicator display a value up to?
4 psi
What does a CHIP annunciator indicate?
Possible metal contamination in the engine oil supply.
Explain the causes for an amber and/or red annunciator for IDLE and ABOVE IDLE