Embraer regional jet flight crew reported that the aircraft did not turn toward the correct fix on d...

Attributes
ACN	1493113
Time
Date	201711
Local Time Of Day	0001-0600
Place
Locale Reference	SLC.Airport
State Reference	UT
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Embraer Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	SID WEVIC6
Flight Plan	IFR
Component
Aircraft Component	Navigational Equipment and Processing
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Track / Heading All Types

Narrative:

Slc tower cleared us for takeoff runway 16L on the RNAV WEVIC6 to hopto which is the first fix; RNAV captured as usual and at acceleration altitude autopilot were engaged and as pm (pilot monitoring) after engaging autopilot I saw the aircraft started heading to the left of course; PF (pilot flying) disconnected the autopilot and start hand flying; meantime departure key on the mic asking where we were going and we advised them with the situation. My observation on pfd the flight director were to the right; LNAV course to the left totally in disagreement with the right picture. After hand flying few fixes PF asked to re-engage the LNAV mode which at this point capture properly. Upon landing; captain had the opportunity to speak with slc tower about the issue; which looks per the conversation it's been happening to several aircraft; a write up were made and maintenance came to fix the issue and tested the automation.since this event happened to several different airplanes on the RNAV wevic departure it will benefit if tower clear airplanes on a heading then maybe direct to hopto till the problem gets figured out; the database or programming (coordinates) issue.

Original NASA ASRS Text

Title: Embraer Regional Jet Flight Crew reported that the aircraft did not turn toward the correct fix on departure.

Narrative: SLC Tower cleared us for takeoff Runway 16L on the RNAV WEVIC6 to HOPTO which is the first fix; RNAV captured as usual and at acceleration altitude autopilot were engaged and as PM (Pilot Monitoring) after engaging autopilot I saw the aircraft started heading to the left of course; PF (Pilot Flying) disconnected the autopilot and start hand flying; meantime departure key on the mic asking where we were going and we advised them with the situation. My observation on PFD the flight director were to the right; LNAV course to the left totally in disagreement with the right picture. After hand flying few fixes PF asked to re-engage the LNAV mode which at this point capture properly. Upon landing; Captain had the opportunity to speak with SLC Tower about the issue; which looks per the conversation it's been happening to several aircraft; a write up were made and maintenance came to fix the issue and tested the automation.Since this event happened to several different airplanes on the RNAV WEVIC departure it will benefit if tower clear airplanes on a heading then maybe direct to HOPTO till the problem gets figured out; the database or programming (coordinates) issue.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Embraer regional jet flight crew reported that the aircraft did not turn toward the correct fix on departure.