Garmin G1000H Bell 407GX Pilot's Guide - Page 351

HAZARD AVOIDANCE Alert Type Reduced Required Terrain Clearance Warning (RTC) Imminent Terrain Impact Warning (ITI) PFD/HTAWS MFD Page Alert Pop-Up Alert (except Annunciation HTAWS Page) Aural Message "Warning; Terrain, Terrain" "Warning; Terrain, Terrain" Reduced Required Obstacle Clearance Warning (ROC) Imminent Obstacle Impact Warning (IOI) "Warning; Obstacle, Obstacle" "Warning; Obstacle, Obstacle" Reduced Required Terrain Clearance Caution (RTC) Imminent Terrain Impact Caution (ITI) "Caution; Terrain, Terrain" "Caution; Terrain, Terrain" Reduced Required Obstacle Clearance Caution (ROC) Imminent Obstacle Impact Caution (IOI) "Caution; Obstacle, Obstacle" "Caution; Obstacle, Obstacle" Voice Callout (VCO) None None "Five Hundred", "Four Hundred", "Three Hundred", "Two Hundred", "One Fifty", "One Hundred", "Fifty" Table 6-9 HTAWS Alerts Summary Aural HTAWS caution alerts can be muted while an alert is occurring. Muting an active caution alert has no effect on visual caution annunciations or aural or visual warnings. If new HTAWS cautions occur, muting will have no effect until it is enabled again. Muting/Unmuting an Active HTAWS Caution Aural Alert: Press the TA MUTE button on the collective. Or: 1) Turn the large FMS Knob to select the HTAWS Page on the MFD. 2) Press the MUTE CTN Softkey. Or: 1) Press the MENU Key. 2) Select 'Mute Active Caution' or 'Unmute Active Caution' (choice dependent on current state) and press the ENT Key. FORWARD LOOKING TERRAIN AVOIDANCE (FLTA) Reduced Required Terrain Clearance (RTC) and Reduced Required Obstacle Clearance (ROC) alerts are issued when the aircraft flight path is above terrain, yet is projected to come within the minimum clearance values in Figure 6-79. When an RTC alert is issued, a potential impact point is displayed on the HTAWS Page. 190-01255-00 Rev. A Garmin G1000H™ Pilot's Guide for the Bell 407GX 339