Navigation

Question 1

True or False: LPV approaches are not influenced by temperature or bark-info.

Answer 1

True

Question 2

The LNAV/VNAV approach uses ___ information for lateral guidance and either ___ or ___ for vertical guidance.

Answer 2

Satellite Based Augmented System (SBAS)

SBAS or Baro-VNAV

Question 3

The WAAS (Wide Area Augmentation System) is uses ___, ____ and ___ to establish an aircraft’s position.

In other areas of the world WAAS is known as ___

Answer 3

GPS satellites, ground stations and geosynchronous satellite providing simultaneous broadcast

Satellite Based Augmented System (SBAS)

Question 4

The LPV (Localizer Performance with Vertical Guidance) approach uses a ___ constructed glide path.

Answer 4

FMS

Question 5

PFD Annunciations for WAAS/SBAS Nav:
LOI (white) -

LOI TERM (yellow) -

LPV APPR (white) -

LPV TERM (white) -

L/V APPR (white) -

L/V TERM (white) -

MSG (white) -

MSG (yellow) -

NO APPR (white) -

NO APPR (yellow) -

VNAV Flag (red) -

Answer 5

PFD Annunciations for WAAS/SBAS Nav:

LOI (white) - shows loss of integrity when FMS is operating in GNSS nag mode and aircraft is operating in the en route or oceanic/remote flight modes. The message will clear itself when the condition clears.

LOI TERM (yellow) - shows loss of integrity when in Terminal mode. Displays in white after takeoff until the aircraft reaches 400’ AGL. This will only display when the GNSS is enabled. On approach prior to the FAF the pilot has the option to switch approaches. After the FAF the pilot should accomplish a GA nlt LNAV mins if available. If not avail, a GA should be accomplished immediately.

LPV APPR (white) - when SF+BAS - VNAV LPV level of service approach is in use

LPV TERM (white) - when the autopilot is in NAV mode (not APPR), a SBAS LPV appch is selected and aircraft is afar first point on a STAR or within 31 NM of the airport for the selected approach in use

L/V APPR (white) - shows when SBAS - LNAV/VNAV level of service approach is in use

L/V TERM (white) - shows when autopilot is in NAV (not APPR), a SBAS LNAV/VNAV appch is selected and aircraft is after first point on a STAR or within 31 NM of the airport for selected approach

MSG (white) - white message on CDU

MSG (yellow) - yellow message on CDU

NO APPR (white) - displays when GNSS overlay is not authorized or approach has been disabled - lateral deviation scaling reverts to terminal environment level

NO APPR (yellow) - shows during final approach when required nag accuracy for approach is lost: GO AROUND

VNAV Flag (red) - VNAV data from FMS is missing/invalid and LPV appch is selected: GO AROUND nlt LNAV mins if available

Question 6

MFD Annunciations for WAAS/SBAS Nav:

APPR NOT AVAILABLE (yellow) -

LOSS OF INTEGRITY (yellow) -

USE LNAV MINIMUM (yellow) -

Answer 6

MFD Annunciations for WAAS/SBAS Nav:

APPR NOT AVAILABLE (yellow) - Displays when GNSS overlay is not authorized; white CDU message APPR For REF ONLY is also displayed

LOSS OF INTEGRITY (yellow) - Select another approach if applicable. FMS is operating in GNSS nav mode (SBAS PA, SBAS, or GPS) during an approach after passing the FAF. Shows when Horizontal Precision Limit (HPL) exceeds the Horizontal Alert Limit (HAL) and the Vertical Precision Limit (VPL) exceeds the Vertical Alert Limit (VAL) and no satellite fault has been detected.

USE LNAV MINIMUM (yellow) - shows when SBAS-VNAV LNAV conditions exists. This conditions exists when ALL the following are true:

• the FMS is in SBAS-VNAV Approach Mode
• the LNAV level of service is authorized for the selected approach.

Question 7

Approach Mode (LPV or L/V):

1) Push the APPR button on the FCP when less than ___ degrees from from inbound radial on the approach.
2) When the aircraft is inside the terminal area (___NM from the airport) or after the ____ the pilot display shows: ___
3) The approach is enabled when the ___ is the From waypoint or within ___ nm of the FAF if the intercept angle is less than ___ degrees.
4) ___ or ___ displays white in the PFD when the approach is enabled. Lateral and vertical scaling adjusts to angular scaling similar to ___ (increasing sensitivity as the aircraft approaches the runway).
5) ___ will appear in green above the altitude indicator when LPV APPR is active and properly configured inside the FAF

Answer 7

Approach Mode (LPV or L/V):

1) 90 deg

2) 31 NM; first point on a STAR;
LPV TERM or L/V TERM (white ) on PFD; lateral deviation scaling adjusts to +/-1.0 nm and vertical deviation scaling adjusts to +/- 500 feet

3) Final Approach Course Fix (FACF); 2 nm; 45 deg
4) LPV APPR or L/V APPR; ILS
5) RWY in green above altitude indicator