• article
• [ejet:gps_rnav]

GPS RNAV Approach

General

• Shall be autopilot flown with
• LNAV by the IAF
• VGP / FPA by the FAF
• Prior to Approach, checking
• Tracks / Dist / Altitudes
• 3 deg vertical profile

Nuemonic

R - RNP / RAIM

N - Navigation (Tracks / Dist / Alt / 3 deg)

A - Autopilot

V - Viable

Discontinuing an Approach

In IMC & having passsed the IAF

• EPU > 0.30
• 'GPS RAIM UNAVAILABLE'
• 'GPS RAIM ABOVE LIMITS'
• 'UNABLE RNP'
• 'DEGRAD'
• Both GPS have failed
• Both FMS have failed
• CDI > 1 dot

Arming VGP

• FMS is navigation source
• Non-LOC approach
• within 30 NM
• NOT in DR
• altitude and angle contraints have NOT been changed
• a vertical direct-to the FAF has NOT been activated

Engagement of VGP

• APP button has been pressed
• LNAV is active
• within 5 NM of FAF
• able to capture final approach slope

Categories: Embraer 170/190 | Approach