15 - Warning Systems Flashcards
What will cause a Takeoff config warning?
6 Items
- Stab trim not green
- TE flaps not 1-25, or skew/assymetry/uncommanded motion
- LE flaps not extended, or uncommanded motion
- Speedbrake lever not down
- Spoilers not down
- Parking brake is set
When will the landing gear horn sound with 30 degrees of flaps?
Always, and cannot be cut out (>25 degrees)
Will a single fault in a redundant system usually trigger the master caution?
No, but the “recall” function will
When will the landing gear horn sound with flaps 1-10
Below 800’ RA, with the thrust levers reduced (below 20 degrees)
In a climb to selected altitude, when does the altitude alerter sound.
What are the visual indications?
900 feet before
White box around selected altitude, current altitude box turns bold
When deviating from selected altitude, when does the altitude alerter sound. What are the visual indications
Deviating more than 300 feet, amber current altitude until >900, returning below 300 feet, or selecting a new altitude
Can the PSEU light illuminate in flight?
No, not for most airplanes in the fleet
What system discovers the predictive windshear warnings
Weather RADAR
On the terrain display, what do the following indications mean?
- Solid RED
- Solid AMBER
- Dotted RED
- Dotted AMBER
- Dotted GREEN
- Black
- Dotted magenta
- Solid RED: look-ahead terrain warning active
- Solid AMBER: look-ahead terrain caution active
- Dotted RED: terrain mor than 2,000 feet above airplane’s current altitude
- Dotted AMBER: 500(250 gear down) below to 2,000 fet above
- Dotted green: 2,000 feet below to 500 (250 gear down) below aircraft
- black: no significant terrain
- magenta: no terrain data available
When can you do the following tests:
- High speed (clacker)
- Low speed (shaker)
- GPWS (aurals etc)
All only on the ground
How do you cancel a below GS alert under 1,000 feet RA
Press the illuminated switch
When is predictive windshear available
Below 1,200’ RA
Look-ahead alert system for terrain will show for terrain within what altitude
2,000 feet
The fire warning activates under which conditions?
Fire warning in:
- Engines
- APU
- Wheel Well
- Cargo
Which errors will usually only illuminate during a recall?
Single channel faults in a redundant system
What does the INOP light on the GPWS panel signify
GPWS computer malfunction, power loss, or invalid inputs from connected systems (RA, ADIRU etc)
What does the TERR INHIBIT switch do?
Disables look-ahead features and display
What does the cyan TERR indication on the DU mean
Terrain display is enabled, either automatically or manually
What does green lights in the flight deck usually signify
A fully extended condition. Either by landing gear or LE devices
What are the purpose of master caution lights
To alert the crew of something outside the normal field of vision
When is altitude alerting inhibited
When flaps are 25 or more, or a glideslope is captured
Look-ahead terrain is based on barometric or radar altitude
barometric
Look ahead/obstacle terrain cautions are approximately how far from the plane?
40-60 seconds
Look-ahead/obstacle terrain warnings are approximately how far away from the plane
20-30 seconds
