234 Annunciator Panel

Question 1

ENG 1/2 FAIL

Answer 1

N1 has dropped below 50-65% on the indicated engine with the ECL at FLIGHT

Question 2

GEN 1/2 HOT

Answer 2

The indicated GEN has exceeded 150°c

Question 3

TR 1/2 HOT

Answer 3

The indicated TR has exceeded 150°c

Question 4

ENG 1/2 OIL PRESS LOW

Answer 4

Engine oil pressure is below 15-19psi

Question 5

ROTOR BRAKE ON

Answer 5

Rotor brake is pressurized or handle is not stowed

Question 6

ENG 1/2 OIL LEVEL

Answer 6

Indicates 2 hours of oil remaining under normal consumption rates

Question 7

STEERING FAIL

Answer 7

Power steering circuits have failed or has exceeded steering limits

Question 8

DOOR UNLOCKED

Answer 8

Cabin door is unlocked

Question 9

AFCS

Answer 9

Indicates AFCS failure. Refer to the AFCS panel for failed system/axis

Question 10

RAMP OPEN

Answer 10

Indicates the ramp is not locked

Question 11

ENG 1/2 XMSN HOT

Answer 11

Indicates temperature is above 199°c

Question 12

XMSN OIL HOT

Answer 12

Oil in one of the five XMSN’s is above 140°c

Question 13

HEATER HOT

Answer 13

Heater outlet temp exceeds 300°f

Question 14

L/R FUEL LOW

Answer 14

Fuel level in associated tank is at 1200lbs

Question 15

XMSN OIL PRESS

Answer 15

Main oil pressure in one of the five XMSN’s is below 20psi

Question 16

L/R FUEL BOOST

Answer 16

Fuel pressure in the associated fuel line in less than 10psi

Question 17

XMSN AUX PRESS

Answer 17

Aux pressure in one of the five XMSN’s is less than 10psi

Question 18

GEN 1/2 FAIL

Answer 18

The associated generator contractor has opened and the Gen is offline

Question 19

ENG 1/2 FUEL PRESS

Answer 19

Pressure in engine fuel supply line has dropped below 10 to 13psi

Question 20

TR 1/2 FAIL

Answer 20

Associated TR contractor has opened and the TR is offline

Question 21

NO. 1/2 AC ESS BUS

Answer 21

Power to the associated AC essential bus has failed

Question 22

EMERG GEN BEARING

Answer 22

Emergency generator bearing is hot

Question 23

AFT RAMP SMOKE

Answer 23

Smoke has been detected in the ramp/baggage area

Question 24

NO.1/2 DC ESS BUS

Answer 24

Power has failed to the associated DC ESS BUS

Question 25

BATTERY OFF

Answer 25

Indicates battery switch is off,

OR

The battery relay has opened automatically,

OR

The battery relay has failed

Question 26

HYD 1/2 PRESS

Answer 26

Pressure in the associated flight boost hydraulics is below 2000psi

Question 27

HYD OVERTEMP

Answer 27

Temp is the affected HYD system has exceeded 138°c.

Check hydraulic control panel overhead to determine the affected system. HYD 1, HYD 2, or UTIL HOT

Question 28

ICE DETECTED

Answer 28

Ice is building on the AFT pylon detector

Question 29

L/R FUEL JETTISON

Answer 29

Indicates the associated fuel jettison valve is open

Question 30

ENG 1/2 CHIP DET

Answer 30

Metal particles detected in the associated engine or engine XMSN lube system.

Engine XMSN chip detector
Debris Screen chip detector
Or
Accessory sump chip detector

Question 31

XMSN CHIP DET

Answer 31

Metal particles detected in the FWD, C-BOX, AFT, or AFT rotor shaft thrust bearing lube system.

Question 32

APU ON (amber caution)

Answer 32

APU is running and one or both ECL’s are at fly

Question 33

EMERG HYD FAIL

Answer 33

Output pressure of the emergency hydraulic pump is less than 2000psi

Question 34

EXT PWR ON

Answer 34

External AC or DC power online

Question 35

PARKING BRAKE ON

Answer 35

Pressure in one or both brake systems

Question 36

ENG STARTER

Answer 36

One or both engine start switches are at MOTOR or START

Question 37

HOOK OPEN

Answer 37

Cargo hook is open

Question 38

EMERG GEN READY

Answer 38

Emergency generator is energized due to the following:

1)Emerg Gen test switch is set to TEST
2) A main Gen has failed
3) A main TR has failed

Question 39

GROUND CONTACT

Answer 39

Left AFT landing gear has made ground contact

Question 40

APU ON (green advisory)

Answer 40

APU is running

Question 41

LDG LT ON

Answer 41

Either collective grip searchlight switch is on