Message Level Notes Condition MEL Item
PARKING BRAKE Warning Basic Parking brake set and takeoff N/A
thrust selected on either engine.
PARKING BRAKE Advisory Basic Parking brake set. 32-44-3
PASS OXYGEN LOW Advisory Option Pass oxygen pressure is less than 35-21-1
500 psi.
PASS OXYGEN ON Advisory Basic Oxygen passenger service unit 35-21-1
latch energized.
PILOT RESPONSE Warning
Caution Advisory Prov’n No MCDU, EFIS/EICAS radio
control panel, MCP activity, and no HF/VHF flight deck transmission detected by airline’s requested time delay, or in coupled LNAV/VNAV cruise operation, NAV integrity is suspect of excessive deviation from latitude flight plan, cruise altitude, predicted thrust or target airspeed is detected, or reaching TOD and no crew
activity for airline requested time delay. N/A
POWER XFER UNIT Status Basic Power transfer unit protection
circuitry failure.
PRINTER Comm E Option Data link printer message is
printing for crew review.
PRINTER Comm F Option Data link printer message is
printing for crew review. Message is set for a minimum of 10
seconds.
PROBE HEAT Advisory Basic Two or more probe heat failures
or continuity loss.
R AC BUS OFF
Caution Basic Right AC main bus unpowered.
R AFT EMER DOOR Advisory Basic Right aft emergency door unlatched on overwing exit.
R AFT ENT DOOR Advisory Basic Right aft entry door unlatched.
Message Level Notes Condition MEL Item
R AFT FUEL PUMP Advisory Basic Low fuel pump output pressure. 28-22-1
R AIR DATA Advisory Basic Right Air Data self-detected fault. 34-26-1
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