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Flashcards in 15. Warning Systems Deck (14):
1

Recall features of the Weather Radar system

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Incorporates a predictive windshear function

 Detects and displays ground mapping and areas of severe weather

 Must not be operated within 50 feet of personnel or a fuel spill

 Must not be operated inside a hangar

2

Recall features of the Central Aural Warning System (CAWS)

The aircraft Central Aural Warning System consists of tones such as horns, chimes, and bells accompanied by voice messages and warnings

 Each voice message is preceded by its associated tone warning

3

Recall when a takeoff warning will occur

A takeoff warning will sound anytime aircraft is on the ground, both throttles are advanced and any of the following conditions exist:

Brakes – parking brake engaged

Flaps – Not in agreement with setting entered into FMS

Slats – Not in takeoff

Spoilers – Not Stowed

Stabilizer – Not in green band

Rudder Trim – Not centered

4

Recall features of the Predictive Windshear system

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Detects microburst windshear hazards during takeoff and landing

 Automatically activated in flight when aircraft is below 2300’ radio altitude (even if radar is OFF)

**Note: radar must be ON to receive any predictive alerts on the ground (during takeoff)

 Cockpit alerts generated below 1200’ radio altitude and microburst detected

5

Recall Predictive Windshear Alert Levels

Three levels of alert for windshear conditions

WARNING - CAUTION - ADVISORY

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WARNING ALERT

DURING TAKEOFF

**Note: Warnings are inhibited from 100 knots until reaching 50’ AGL

 Max effective range 3 NM

 WINDSHEAR icon displayed on ND

 Red WINDSHEAR AHEAD icon displayed on PFD

 Aural warning: "WINDSHEAR AHEAD- WINDSHEAR AHEAD"

DURING LANDING

**Note: Warnings are inhibited below 50’ AGL

 Max effective range 1.5 NM

 WINDSHEAR icon displayed on ND

 Red WINDSHEAR AHEAD icon displayed on PFD

 Aural warning: "GO AROUND - WINDSHEAR AHEAD"

6

Recall Predictive Windshear Alert Levels

Three levels of alert for windshear conditions

WARNING - CAUTION - ADVISORY

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CAUTION ALERT

**Note: Caution Alerts are inhibited from 100 knots until reaching 50’ AGL

Generated for windshear events outside the warning area

Max range 3 NM

WINDSHEAR icon displayed on ND

Amber WINDSHEAR AHEAD icon displayed on PFD

Aural warning: "MONITOR RADAR DISPLAY"

7

Recall Predictive Windshear Alert Levels

Three levels of alert for windshear conditions

WARNING - CAUTION - ADVISORY

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ADVISORY ALERT

Generated for windshear events outside the warning and caution area

Max range 5 NM

WINDSHEAR icon only displayed on ND

**Note: Reactive Windshear Warnings are similar with aural warnings for "HEADWIND SHEAR" and "TAILWIND SHEA R" (detected increasing/decreasing performance) and are available from 80 knots to 1500’

Aural alerts are accompanied by the following messages on the PFDs

 WINDSHEAR – Headwind shear (increasing performance)

 WINDSHEAR – Tailwind shear (decreasing performance)

8

Recall features of the Electronic Instrument System (EIS) Alerting

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*Note: The EIS Alerting System displays alerts and applicable consequences on the aircraft Display Units (DU)

Note: Pushing the associated cue light on the System Display Control Panel (SDCP) displays the associated SD synoptic and resets the MASTER CAUTION or MASTER WARNING lights

9

EIS alerts are categorized into four levels, each with unique characteristics

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LEVEL 3 ALERT – BOXED RED

 Indicate emergency operational conditions that require immediate crew attention

 Red MASTER WARNING Lights illuminate

 Boxed RED alert on the EAD

 Associated cue light on SDCP illuminates

LEVEL 2 ALERT – BOXED AMBER

 Indicate abnormal operational conditions that require immediate crew attention

 Amber MASTER CAUTION lights illuminate

 Boxed AMBER alert on the EAD

 Associated cue light on SDCP illuminates

LEVEL 1 ALERT – AMBER

 Indicate conditions that may require maintenance attention before takeoff, a logbook entry, confirmation of desired condition, etc

 Amber MASTER CAUTION lights may illuminate

 AMBER alert on EAD

 Associated cue light on SDCP may illuminate

LEVEL 0 ALERT – CYAN

 Generally operational, or aircraft status information

 CYAN alert on EAD

CONSEQUENCES

**Note: When some level 1, 2 or 3 alerts are displayed, statements called CONSEQUENCES are displayed on the associated synoptic

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10

Recall the inhibit features of the aircraft’s alert system during takeoff

Level 3 Alerts and associated MASTER WARNING lights are inhibited from V1 to 400’ RA, but no longer than 25 seconds in flight

 Level 2 or 1 Alerts and associated MASTER CAUTION lights are inhibited at throttle advance, 80 knots, or V1-20 knots

 The takeoff inhibits are released at 400’ RA, after 25 seconds in flight or above 1000’ AFE

 Level 0 Alerts are not inhibited

11

Recall indications of a completed and successful aircraft Takeoff Essential Items Checklist

During taxi, aircraft takeoff requirements are automatically checked sequentially

 When all takeoff items have been satisfied, a green takeoff-checklist-complete box is displayed on the EAD

 The green box is removed once the aircraft becomes airborne

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12

Recall indications of a completed and successful aircraft Landing Essential Items Checklist

During approach, essential aircraft landing requirements are automatically checked

 When all landing items have been satisfied, a green landing-checklist-complete box is displayed on the EAD (same as above)

 The green box is removed once the aircraft is on the ground

**Note: Do not delay calling the LANDING CHECKLIST complete while waiting for the "Green Box" to appear

13

Recall features of the aircraft Enhanced Ground Proximity Warning System (EGWPS)

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The aircraft EGPWS interfaces with the radio altimeters, ADIRUs, VIAs, ILS and landing gear position lever to detect dangerous aircraft proximity to the ground

 Effective below 2500’

Terrain Switch

 Push – Inhibits enhanced EGPWS features

 Illuminates OVRD light

 Basic EGPWS modes not affected

 

GND PROX WARN Switch

FLAP OVRD – Inhibits warning when landing with less than normal flaps

 NORM – Normal position

WX/TERR Switch

Push – Selects weather radar display on ND

 Push again to deselect weather

 Terrain is displayed when weather radar is not selected

BELOW G/S Switch

 Indicates excess deviation below glideslope

 Light accompanied by vocal warning "GLIDE SLOPE"

 Pushing switch below 1,000’ RA inhibits or cancels warning

Several Modes to detect:

Excessive descent rates

 Excessive terrain closure rates

 Altitude loss after takeoff

 Unsafe terrain clearance

Descent below ILS glide slope

 Excessive bank angles

 Descent through predefined radio altitudes

 

14

Recall features of the aircraft Traffic Alert and Collision Avoidance System (TCAS)

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Airborne systems interrogate ATC transponders in nearby aircraft to identify and display potential collision threats

RA - Resolution Advisory

 Displayed on the ND and PFD to display potential conflicts

 Imminent collision threat

 Depicted by a red square on the ND

 Voice warnings will command climb or descent, as required, and notify crew when clear of conflict

TA - Traffic Advisory

 TA threats depicted by amber circles on the ND

 Voice warning: "TRAFFIC, TRAFFIC"

 Corrective action will not be required

Proximate Traffic

 Displayed on the ND as solid cyan diamonds

**Note: RA corrective commands may be shown by a green fly-to zone on the PFD vertical speed display – or – by red forbidden zones on the PFD vertical speed display