BE30 - Annunciators

Question 1

L/R ENG FIRE
(firewall valve illumination)

Answer 1

Fire detector tube sensed an overtemperature condition :
- Any 1’ section >800°F
- Entire tube average >360°F
- Accessory cmpt. >545°F
- Hot section cmpt. >540°F

Question 2

L/R FW VALVE CLOSED

Answer 2

“[STEADY] Valve is closed
[FLASHING] Valve position does not agree with switch position”

Question 3

EXTINGUISHER PUSH

Answer 3

Fire extinguisher is armed wt. firewall valve closed

Question 4

DISCHARGED

Answer 4

Pyrotechnic cartridge has fired
Cartridge circuit is broken/open, regardless of firewall fuel-valve position

Question 5

L/R FUEL PRES LO

Answer 5

Fuel pressure failure
“Engine-driven boost-pump outlet pressure below 10 PSI :
- Engine-driven boost-pump failure [solved by switching standby boost-pump ON]
- Engine-driven high pressure fuel pump failure [Results in engine flame out]”

*Note = Limited to (10) hours before overhaul /or/ replacement of engine-driven fuel pump

Question 6

L/R BLEED FAIL

Answer 6

Environmental or pneumatic air-line failure
Rupture of bleed-air line exposes adjacent EVA tube to excessive heating. Pressure in th EVA tube has subsequently dropped below 2 PSI. [Closing the BLEED AIR VALVE switch will not extinguish the annunciator]

Question 7

1/#2 AC BUS

Answer 7

Failure of the inverter
Voltage on respective bus is out of tolerance (±10% of 26V / 115V), or frequency (±5% of 400Hz)

Question 8

A/P TRIM FAIL

Answer 8

Electric trim is not responding to commands from the A/P computer
“Detected failure in trim channel :
- Improper trim commands
- Trim runaway
- Trim system failure “

Question 9

CABIN ALT HI

Answer 9

Cabin altitude exceeds 12,000’

Question 10

CABIN DIFF HI

Answer 10

Cabin differential pressure exceeds 6.9 PSI

Question 11

L/R OIL PRES LO

Answer 11

Low oil pressure

Question 12

DOOR UNLOCKED

Answer 12

“Door not locked
(open / unsecured)”

Question 13

A/P FAIL

Answer 13

Autopilot monitor sensed a failure

Question 14

L/R DC GEN

Answer 14

Generator offline

Question 15

L/R CHIP DETECT

Answer 15

Metal contamination detected in oil

Question 16

L/R BL AIR OFF

Answer 16

Bleed-air flow control (shutoff valve) closed

Question 17

DUCT OVERTEMP

Answer 17

Duct air too hot
Over Temperature sensed in environmental bleed-air line >150°C in duct aft of mixing plenum

Question 18

L/R GEN TIE OPEN

Answer 18

Gen bus isolated from center bus
“Bus-tie relay open :
- Switch OFF
- HED sensed overcurrent
- Current limiter sensed reverse-flow”

Question 19

HYD FLUID LOW

Answer 19

Hydraulic fluid low in power pack
Fiber Optic sensing unit mounted on power-pack sensed a low fluid level

Question 20

L/R FUEL QTY

Answer 20

Fuel qty less than 30 min at MCP
“Fuel qty in main tank below 45 gallons / 300 lbs.
Annunciation illuminates after 5-7 sec. delay to prevent transient warnings”

*Note = Yellow arc indicates 265 lbs (no take-off allowed)

Question 21

L/R ENG ICE FAIL

Answer 21

Anti-ice actuator not fully extended within 30-40sec. after switched ON
“[35s sec. delay] Ice-vane door microswitch senses a position that does not agree with ON/OFF switch position
[Immediate] Loss of electrical power to the motor”

Question 22

L/R NO FUEL XFR

Answer 22

No motive flow pressure wt. fuel remaining in the aux tank
“Pressure-switch, adjacent to motive-flow valve, sensed ess than 6 PSI.
Annunciator illuminates after 11 sec. delay to prevent transients warnings “

Question 23

BAT TIE OPEN

Answer 23

Battery isolated from gen buses (Could indicate a CENTER bus fault)
“Bus-tie relay open :
- Switch OFF
- HED sensed overcurrent
- Current limiter sensed reverse-flow”

Question 24

OXY NOT ARMED

Answer 24

Oxygen arming handle not pulled (or) system failed to charge.
Pressure in the primary oxygen supply line is insufficient

Question 25

AUTOFTHER OFF

Answer 25

AFX system is not armed wt. landing gear extended

Question 26

RUD BOOST OFF

Answer 26

Rudder boost system failure (or) RUD BOOST control switch is in a position other than ON

Question 27

PITCH TRIM OFF

Answer 27

Electric elevator trim system disconnect using the trim disconnect switch

Question 28

RVS NOT READY

Answer 28

Propellers not in high RPM (low pitch) wt. landing gear extended

Question 29

EXT PWR

Answer 29

“[STEADY] GPU connected & supplying sufficient current
[FLASHING] GPU connected & not supplying sufficient current (or) EXT PWR switch OFF”
Sensor on external power relay sensed below 24 VDC or over 31 VDC

Question 30

PROP GND SOL

Answer 30

≥28 VDC is being delivered to one or both ground idle pitch stop solenoids for >10 sec. (reducing speed & power may result in either or both propellers going into ground idle)
Electrical power is normally removed from the solenoid by a microswitch on its respective power lever as it advance through 68-70%N1

Question 31

POD DOOR

Answer 31

Pod door is open/unsecured)

Question 32

L/R PITOT HEAT

Answer 32

Pitot heat inop.

Question 33

L/R IGNITION ON

Answer 33

Ignition & Engine start switch is ON (or) Auto-ignition system is activated when engine TRQ falls below 17%

Question 34

L/R ENG ANTI-ICE

Answer 34

Anti-ice vane extended
* Should also result in TRQ decrease & ITT increase

Question 35

L/R BK DEICE ON

Answer 35

Brake deice system in operation
Shutoff valve in wheel well is OPEN (allowing hot bleed air to enter brake deice line)

Question 36

MAN TIES CLOSE

Answer 36

Gen ties switch is in MAN CLOSE position & bus tie relay is closed (Gen buses are powered by battery)

Question 37

FUEL CROSSFEED

Answer 37

Crossfeed valve is open
If standby boost-pump on both sides operating wt. crossfeed valve open, fuel will be supplied in the normal manner due to equal pressure on each side of the valve

Question 38

WING DEICE

Answer 38

Wing surface deice system in operation (inflates)
Pressure switch senses 14-15 PSI in both wing boot

Question 39

TAIL DEICE

Answer 39

Tail surface deice system in operation (inflates)
Pressure switch senses 14-15 PSI in tail boot

Question 40

ELEC HEAT ON

Answer 40

Electric heat switch is ON & system is operational
[Extinguished, when switch was selected ON] Thermistor in duct sensed an overheat condition (ex. blower failure) & power was removed from the heat elements

Question 41

L/R PROP PITCH

Answer 41

Propeller below flight idle stop
Magnetic-proximity sensor sensed that propeller blade angle has decreased below the flight low-pitch stop.

Question 42

PASS OXYGEN ON

Answer 42

Passenger oxygen system charged (the passengers’ oxygen masks will deploy imminently)
“Oxygen pressure sensed in passenger oxygen supply lines
* Causes the cabin indirect lights to illuminate”

Question 43

CABIN ALTITUDE

Answer 43

Cabin altitude exceeds 10,000’

Question 44

LDG/TAXI LIGHT

Answer 44

Light is ON wt. landing gear retracted

Question 45

AIR COND N1 LOW

Answer 45

[R] Engine N1 too low to power the A/C freon compressor
“Air conditioner compressor cutout switch has disconnected the electric clutch for the A/C compressor.
* Minimum engine idle speed & A/C cutout switch coincide. Constant cycling of the clutch will cause pressure surge in A/C plumbing, which may in turn cause the resettable switch in nose wheel well to trip (amber light)”

Question 46

L/R AFX

Answer 46

AFX system is fully armed
AFX switch is in ARM position wt. both power levers advanced to the equivalent of N1 > 88%. If either TRQ falls <17%, system becomes inoperative on opposite side. If TRQ falls <10%, prop feathers on failed side.