LR45 ENGINE CAS (12/13/2023)

Question 1

L FUEL PRESS LOW
R FUEL PRESS LOW
L R FUEL PRESS LOW
(RED)

Answer 1

Low pressure to engine fuel pump inlet (< 1 psi)

The altitude for suction feed cannot be specifically stated since it varies with fuel temperature and type.

Question 2

L OIL PRESS LOW
R OIL PRESS LOW
(RED)

Answer 2

Low oil pressure (< 50 psi)

• If oil pressure is low and temperature is high you might need to do a precautionary engine stutdown in flight.
• An oil pressure below 65 psi is undesirable and should only be allowed for the completion of the flight. Operation at an oil pressure below 50 psi will result in engine damage.

Question 3

L ENGCOMPTR FAULT
R ENGCOMPTR FAULT
LR ENGCOMPTR FAULT
(YELLOW)

Answer 3

Malfunction has occurred in DEEC; may revert to MAN mode

Acceleration & deceleration in MAN mode will be slower than normal. Consider this is a go-around situation.

Question 4

L ENGINE CHIP
R ENGINE CHIP
LR ENGINE CHIP
(YELLOW)

Answer 4

Metal particles detected in oil (ground)

Question 4

L ENG FIRE FAIL
R ENG FIRE FAIL
LR ENG FIRE FAIL
(YELLOW)

Answer 4

Fire sensing system has detected a fault (ground); may prevent detection

Question 5

L FUEL FILTER
R FUEL FILTER
LR FUEL FILTER
(YELLOW)

Answer 5

Respective engine/airframe fuel filter has an impending bypass (ground)

Question 6

L FUEL HEATER
R FUEL HEATER
LR FUEL HEATER
(YELLOW)

Answer 6

Fuel is less than + 10C and oil temp > 86 C

Question 7

L OIL FILTER
R OIL FILTER
LR OIL FILTER
(YELLOW)

Answer 7

Respective oil filter has an impending bypass (ground)

Question 8

L APR FAULT
R APR FAULT
LR APR FAULT
(WHITE)

Answer 8

Respective DEEC has detected a fault within computer APR function

Question 9

L CHECK EDS
R CHECK EDS
LR CHECK EDS
(WHITE)

Answer 9

• EDS (Engine Diagnostic System) has lost power
• EDS built-in-test (BIT) has detected a system failure
• EDS memory is 85% full
• System has detected an engine condition which is out of acceptance parameters

Question 10

L ENGCOMPTR FAULT
R ENGCOMPTR FAULT
LR ENGCOMPTR FAULT
(WHITE)

Answer 10

DEEC has detected a minor malfunction on the ground; computer is still in control

In order to clear this fault you may be able to do the following; Thrust Lever IDLE, ENG CMPTR OFF, then ON

Question 11

L ENGINE CHIP
R ENGINE CHIP
LR ENGINE CHIP
(WHITE)

Answer 11

Metal particles detected in oil (inflight)

Question 12

L R ENG FIRE FAIL (WHITE)

Answer 12

Engine fire system has detected a fault; may prevent detection

Question 13

L R ENG SHUTDOWN (WHITE)

Answer 13

COLLECTOR MESSAGE
OIL PRESS LOW (red), FUEL PRESS LOW (red), GEN FAIL (amber), HYD PUMP LO (white) with the TL (Thurst Lever) in cutoff

Question 14

L R ENG VIB MON (WHITE)

Answer 14

Engine vibration beyond preset limits

Question 15

L R FUEL FILTER (WHITE)

Answer 15

Respective engine/airframe fuel filter has an impending bypass (inflight)

Question 16

L R FUEL HEATER (WHITE)

Answer 16

Respective fuel/oil cooler has failed - to the hot condition

Question 17

L R OIL FILTER (WHITE)

Answer 17

Respective engine oil filter has an impending bypass (inflight)