5 - PROCEDURES108page. With “Load?” highlighted press ENT toload the approach into the flight plan.4. After the approach is loaded into the flightplan, you can view the approach waypoints.5. Press the PROC key to display the Procedurespage. With “Activate?” highlighted press ENTto activate the approach.Flying the LPV Approach1. Within 31 nautical miles of KSLE, the 400WSeries unit switches from en route mode toterminal mode and the CDI scale transitionsfrom 2.0 to 1.0 nautical miles, full scale deflec-tion.2. As you approach the IAF (GLORR), a waypointmessage (“LT TO 314° x S”) appears on thebottom of the screen.3. As the distance (DIST) to the IAF approacheszero, the message is replaced by a turn advi-sory that counts down 10 seconds prior to theturn.4. As you approach the FAF (LOTKE), the 400WSeries unit will begin to automatically rescalein an angular fashion. This will allow the LPVapproach to be flown in an identical fashionto a standard ILS. At 2.0 NM from the FAF, CDIscaling is tightened from 1.0 to the angular fullscale deflection (typically the angular full-scaledeflection is 2.0°, but will be as defined for theapproach.5. Sixty seconds prior to reaching the FAF (LOTKE),the unit will check the required Horizontal AlarmLimit (HAL) and Vertical Alarm Limit (VAL) toensure the GPS position integrity is within limitsto complete the LPV precision approach. In theevent the HAL or VAL limits are exceeded, theapproach will be downgraded to a non-preci-sion approach indicated by “LNAV” on themoving map, a message that the approach isdowngraded (“Approach downgraded - UseLNAV minima”), and the glideslope indicatorwill be flagged. You may continue the approachusing LNAV non-precision minimums if thereare LNAV minimums for this approach. In therare event the GPS integrity cannot meet thenon-precision HAL limits, the unit will send amessage to the pilot to abort the approach(“Abort Approach - Loss of Navigation”). TheLPV Approach
