Warning/Caution/Advisory Lights Flashcards
“CABIN ALT” warning
Cabin pressurization failure or air conditioning malfunction. May be due to high AOA or low airspeed.
- Air Conditioning sys failure caused by overpressure to the CAU compressor
- CAU compressor outlet temperature above 500 F
- CAU turbine inlet temp above 250 F
- Cockpit press failure, only when the CABIN press alt ind exceeds 24,500’
“FIRE” warning
Engine bay fire detected
“GENERATOR” warning
Generator Failure
- Under-voltage (25 Vdc or less)
- Overvoltage (30.2 V),
- Generator taken off line
(2 minute timer provides battery power to the DEU, both left MFDs, SADS, CEU when generator is taken off line by under-voltage or overvoltage condition. Removes power after 2 minutes)
“GTS FIRE” warning
GTS bay fire detected
“HOOK” warning
Hook position does not agree with handle position.
(At airspeeds above 300 kts with the hook extended, air loads may raise the hook slightly, causing the “HOOK” light to illuminate)
“HYD FAIL” warning
Total hydraulic pressure loss
Illuminates when HYD 1, HYD 2, and the emergency system loses pressure. Below 1600 psi on HYD 1 and HYD 2, and below 600 psi on the emergency system.
“L BAR” warning
In-flight Launch bar not locked up
Launch bar not retracted, all landing gear down and locked, and weight off wheels for 10 seconds
“LAW” warning (T-45C - MFD display)
Altitude is below LAW setting
Initiates when the aircraft descends to or below the LAW setting and continues until the aircraft ascends above the law setting. With gear extended LAW advisory will be displayed for 3 seconds.
LDG GEAR handle warning light
Any landing gear position disagrees with the handle.
All gear doors are not up and locked with the handle up.
- One landing gear differs from the handle position
- When one landing gear is not down and locked with the LDG Gear handle set to DN
- When the gear doors are not up and locked with the gear handle up
“OIL PRESS” warning
Oil pressure low
Oil pressure differential is low for more than 10 seconds. Momentary illumination is ok under positive G following a period of zero or negative G.
“OXYGEN” warning
OBOGS failure detected
Oxygen concentration below acceptable limits, bleed air supply temperature is above 250 °F, or OBOGS BIT failure
“WHEELS” warning
Indicates LDG GEAR handle is not set to DN,
throttle below 95% N2 rpm position, and
either:
Altitude below 7,200 feet MSL (less than 9,500
±300 feet MSL when climbing or
7,700 ±500 feet MSL when descending), and airspeed below 170 KIAS.
“AC INV” caution
Either or both inverters have failed.
“ACCEL” caution
Shot of fuel solenoid or steam ingestion bleed
valve is not in the proper position.
The two-position shot of fuel solenoid should be open on the ground and whenever the aircraft is below 7,200’ MSL.
The steam ingestion bleed valve should be open when the launch bar is not retracted, weight on wheels, and N2 rpm above 70 percent.
“AV HOT” caution
Avionics cooling air hot/ground indication only
Air temperature in the auxiliary equipment bay exceeds 67C
“BRK PRESS” caution
Brake pressure release system has failed.
In the catapult- brake pressure release system has failed, brake pressure is available. At other times, most likely an indication problem
“CANOPY” caution
Canopy unlocked
Master alert activated if throttle is advanced above 95% N2
“C AUG” caution
Control augmentation off, degraded, or in IBIT
Control augmentation provides yaw damping, turn coordination, speed brake-to-stabilator interconnect, and rudder trim.
“DOOR” caution
A landing gear door is open (not up and locked)
“ECA 2” caution
ECA dual channel failure
The Engine Control Amplifier (ECA) automatically prevents overspeed and overtemp conditions.
“FUEL” caution
Collector tank fuel is below 350 pounds
“F PRES” caution
Fuel tank pressurization failure, fuel boost pump failure, or one or both ENGINE switches set to OFF.
If fuel tank pressurization is lost, two inward relief valves allow ram air to enter the tanks.
If both boost pumps fail, a bypass valve will allow the engine driven pump to draw fuel directly from the bottom of the negative G compartment.
“HYD” caution
HYD system pressure low.
Illuminates when either HYD 1 or HYD 2 pressure drops below 1600 psi. Extinguishes when both HYD 1 and HYD 2 pressure is at least 2000 psi
“LP PUMP” caution
Engine driven low pressure fuel pump failure/outlet pressure low or low pressure fuel filter is clogged.
Illumintates when pressure drops below 35 psi
“M FUEL” caution
Manual fuel system is selected.
There is no automatic control of N1 rpm, N2 rpm, or EGT. Fuel metering is accomplished by direct movement of the throttle. Take extreme care to prevent exceeding rpm and EGT limits.
“MASTER ALERT”
A warning or caution light has been activated
“NWS” caution
Nose wheel steering failure or paddled off
“NWS AUG” caution
NWS AUG failure
“PK BRK” caution
Throttle above intermediate position (approximately 60-70% rpm) and parking brake set
“RAT” caution
RAT is extended
“SEAT” caution
One or both ejection seats not armed and throttle above intermediate position (approximately 60% to 70% rpm)
“SKID” caution
Anti-skid system failure
“SLATS” caution
Slats are not in the selected position, or a split slat condition exists, or exceeding 217 KIAS with flaps/slats selected down
“TP HOT” caution
Tailpipe bay temperature has exceeded limits
“AFT” advisory
Designated COMM or NAV is controlled by the aft cockpit
“ATTITUDE” advisory
Displayed when attitude data is invalid. All ADI attitude display information is removed. If a restart is attempted, the GINA attempts an alignment until attitudes are valid. Information is not available until the alignment has progressed to a point where attitude becomes valid. INS alignment requires up to 3 minutes. In-flight restarts require the aircraft to be in straight and level non-accelerated flight. Shipboard alignments require up to 18 minutes
“AV BIT” advisory
A BIT failure has occurred or been simulated since the last time the BIT display was selected
“BINGO” advisory
Fuel below BINGO setting
“CORRIDOR” advisory (T-45C MFD display)
GPS corridor violation (estimated error), GPS mode only
“ECA” advisory
Single lane failure in the ECA
“FULL” advisory
Flaps are fully extended
“FWD” advisory
Designated COMM or NAV is controlled by the forward cockpit
“GLIDESLOPE” advisory (T-45C MFD display)
Glideslope invalid, glideslope steering needle are blanked
“GTS” advisory
GTS is at idle speed and ready for start
“HALF” advisory
Flaps are in 1/2 position
“ILS” advisory (T-45C MFD display)
Localizer and glideslope invalid, both steering needles are blanked
“L BAR” advisory
Launch bar is extended on the deck and LAUNCH BAR switch is set to EXTEND.
“M FUEL” advisory
Manual fuel system is selected
“MISCOMPARE” advisory
Provides an advisory cue when the INS and GPS outputs do not agree within a certain threshold
“NWS HI” advisory
Nose wheel steering is in high gain
“POSITION” advisory (T-45C MFD Display)
Displayed when positional data is invalid. Heading and velocity data will not be presented on displays. If a restart is attempted, the GINA will attempt an alignment until attitudes are valid. Ground alignment requires 3 minutes. In-flight restarts require the aircraft to be in straight and level non-accelerated flight. Shipboard alignments require up to 18 minutes.
“READY” advisory
N1 ≥100 rpm in correct direction and igniters on
“SIM MODE” advisory (T-45C MFD display)
Improper discrete being input to the DEU. MFDs and HUD remain inoperative
“SKID” advisory
Anti-skid system is selected
“SPD BRK” advisory
Speed brakes not fully retracted
“SPD BRK/FULL” advisory
Speed brakes fully extended
