Engine Ops Limits Flashcards
Normal engine ITT range is _____ (Malfunction if stabilized above).
275°-865°C
Stabilized engine ITT above _____ at IDLE power could indicate a failing outer transition liner; ABORT.
675°C
Maximum acceptable engine ITT during engine starting or acceleration is _____ ITT for _____.
900°C; 12 seconds
ENG HOT light will illuminate at _____ ITT.
880°C
Continuous engine core RPM operating range is _____.
56%-100%
Allowable core RPM range is _____ RPM for 3 seconds (yellow band).
100%-102%
Engine core RPM must not exceed _____ RPM (red line).
102%
Normal oil pressure range, core RPM IDLE to MAX, is _____ PSI.
55-95
Acceptable oil pressure range, core RPM IDLE to 85%, is _____ PSI.
40-55
Engine may operate at IDLE for emergency use only if oil pressure falls to the range of _____ PSI (red band).
30-40
Do not operate an engine if oil pressure falls below _____ PSI.
30
ENG OIL PRESS light will illuminate at _____ PSI and below.
34-39
Max oil pressure when air temperature is -30°C or below is _____ PSI.
100
Oil pressure fluctuation limits are _____ PSI within steady state range.
+/- 5
Allowable intermittent oil pressure fluctuation limits are _____ PSI for a maximum of _____.
+/- 10; 2 seconds
During zero-G or negative-G flight, oil pressure may fall to _____ PSI.
0