Panel Emergency Abnormal Normal
Abnormal
False Engine Start (Engine Does Not Light) Engine Starter Will Not Disengage High Sustained ITT During Ground Shutdown Low Fuel Pressure (LH or RH Fuel Low Press Caution Light On and Master Caution) Low Fuel Quantity (LH or RH Fuel Low Level Caution Light On and Master Caution) Fuel Boost Pump On (LH or RH Fuel Boost On Advisory Light On) Fuel Filter Bypass (LH or RH Fuel Fltr Bypass Caution Light On and Master Caution) Fuel Gauge System Fault (LH or RH Fuel Gauge Caution Light On and Master Caution) Fuel Transfer (Fuel Transfer Advisory Light On) N1, N2 Flag (Yellow Dashes in Digital Readout) ITT Failure (No Pointer and Fail Displayed on ITT Tape) Loss of Oil Pressure Indication (No Pointers Displayed) Loss of Oil Temperature Indication (No Pointers Displayed) Loss of Fuel Quantity Indication (No Pointer and Yellow Dashes in Digital Readout) Loss of Fuel Flow Indication (Yellow Dashes in Digital Readout) Engine Comparator Monitor (Yellow ITT, N1, or N2 Displayed on Indicator) Loss of Engine Comparator Monitor (White ENG1, ENG2 Displayed on PFD) Single Generator Failure (LH or RH Gen Off Caution Light On and Master Caution) Aft J-Box Circuit Breaker Not Engaged (Aft J-Box CB Caution Light On and Master Caution) 250 Amp Current Limiter Blown (Aft J-Box Lmt Caution Light On and Master Caution) Bleed Air Overheat (LH or RH Bld Air O'Heat Caution Light On and Master Caution) Fresh Air Selected (Fresh Air Caution Light On and Master Caution) Environmental System Air Duct Overheat (Air Duct O'Heat Caution Light On and Master Caution) Cabin Pressurization Controller Failure Cabin Door Pressure Seal Failure (Door Seal Light On and Master Caution) Emergency Pressurization On (Emerg Press On Caution Light On and Master Caution) Environmental System Cabin Overheat Use of Supplemental Oxygen (Unpressurized) Electric Elevator Trim Runaway Electric Elevator Trim Inoperative Jammed Elevator Trim Tab Engine or Wing Anti-Ice Failure (LH or RH ENG and/or LH or RH Wing Anti-Ice Caution Light On and Master Caution) Windshield Bleed Air Failure Windshield Air Overheat (W/S Air O’Heat Caution Light On and Master Caution) Pitot-Static Heater Failure (LH or RH P/S HTR OFF, Caution Light On and Master Caution) Angle-of-Attack Heater Failure (AOA HTR FAIL Caution Light On and Master Caution) Tail Deice Timer Failure (LH or RH Tail Deice Advisory Annunciator Fails to Illuminate or Continues to Cycle) Inadvertent Icing Encounter Severe Icing Encounter Pilot PFD Failure (Blank Display) Copilot PFD Failure (Blank Display) MFD Failure (Blank Display) Dual PFD and MFD Failure (Blank Display) Autopilot Out of Trim (Yellow Boxed "E↑,↓" or "A←,→" Displayed on PFDs) Autopilot Overspeed Recovery (Yellow FLC OVRSPD Mode) Single Attitude/AHRS Failure (Yellow AP, Red ATT and White XAHS Displayed) Dual Attitude/AHRS Failure (Yellow AP, Red ATT and White XAHS Displayed) Single Heading/AHRS Failure (Yellow AP, Red HDG and White XAHS Displayed) Dual Heading/AHRS Failure (Yellow AP, Red HDG, and White XAHS Displayed) Inflight AHRS Aligning (White ATT/HDG Aligning) Standby HSI Heading Failure (Red HDG Displayed) Air Data Computer Failure (Red IAS/ALT/VS Displayed on PFD) Copilot Altimeter Failure ADC and Copilot Altimeter Failure Comparator Monitor Alert (Yellow ROL, PIT, ATT, HDG) Loss of Comparator Monitor Alerts (White XAHS) Flight Guidance Computer Failure (Red Boxed FD Displayed) AFD Crosstalk Failure (Yellow XTLK Displayed) Low Speed Cue (LSC) AOA Failure (Red AOA1 or AOA2 Displayed) Display Control Panel Failure (Red DCP 1 Displayed) Panel Avionics Fan Failure (Fan 1 and/or Fan 2 Amber Light On) Landing Gear Will Not Extend Landing Gear Will Not Retract (Gear Unlock Light Remains On) Low Hydraulic Flow (L and/or R Hyd Flow Low Caution Light On and Master Caution) Hydraulic System Remains Pressurized (Hyd Press On Advisory Light Remains On After System Cycle Is Completed) Antiskid System Failure (Antiskid Inop Caution Light On, Master Caution, and Power Brake Low Press Caution Light Out) Dispatch With Antiskid System Inoperative (Antiskid Inop Caution Light On, Master Caution, and Power Brake Low Pressure Caution Light Out) Power Brake System Failure (Power Brake Low Press and Antiskid Inop Caution Lights On and Master Caution) Wheel Brake Failure Attenuator Unlocked (LH and/or RH Attenuator Unlock Advisory Light On) ATT Stow Selected Advisory Light On and Master Caution Dispatch With Attenuator Stowed (ATT Stow Selected Advisory Light On) Speed Brakes Extended (SPD BRK Extend Advisory Light On) Flaps Inoperative Approach and Landing (Not in Landing Position) Flaps Greater Than 35° (Flaps >35° Caution Light On and Master Caution) Landing With Failed Primary Flight Control Cable Single-Engine Approach and Landing Single-Engine Go-Around Door Not Locked (Door Not Locked Caution Light On and Master Caution) Master Warning Light On Steady or Flashing, No Warning Lights Illuminated Master Caution Light On Steady, No Caution Lights Illuminated Firewall Shutoff Valve Closed (F/W Shutoff Caution Light On and Master Caution) Annunciator Video Failure (Video Fail Light On and Master Caution and Warning Lights Remain On) Annunciator Audio Failure (Audio Fail Light On)
LOW SPEED CUE (LSC) AOA FAILURE (RED AOA1 OR AOA2 DISPLAYED)
Indicates AOA information is not valid.
1. Airspeed - VREF during approach.
NOTE
• CAUTION: VREF MUST BE BASED ON AIRCRAFT WEIGHT. LSC MAY NOT BE USED AS A PRIMARY SOURCE OF VREF.
• The default LSC indication is a default yellow vertical line displayed on top of the ISS checkerboard. The yellow vertical line represents the minimum and maximum stall speeds, 72 knots to 97 knots.