EMB145 first officer reports his aircraft failing to turn for vldez over domno on the drllr 1 RNAV t...

Attributes
ACN	1179710
Time
Date	201406
Local Time Of Day	1201-1800
Place
Locale Reference	IAH.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR DRLLR ONE
Flight Plan	IFR
Component
Aircraft Component	Autopilot
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Narrative:

Flying the drllr one arrival into iah we complied with the descend via instructions with no issues. At the fix domno the arrival and the flight plan in the FMS had vldez after domno on a 087 heading. With the autopilot on the FMS never started the turn to vldez and continued on our heading through domno; and kicked into rol mode. The captain was pilot flying and quickly took control and started a turn back on course. ATC never inquired therefore we never brought it up. The rest of the arrival was normal. With both the pilot flying and pilot monitoring the undesired aircraft state was limited and quickly corrected. We were aware of going into roll mode at the end of the STAR but did not expect it at domno. Realized the FMS did not make the turn to vldez and take action before completely passing through domno.

Original NASA ASRS Text

Title: EMB145 First Officer reports his aircraft failing to turn for VLDEZ over DOMNO on the DRLLR 1 RNAV to IAH. Manual intervention is required to turn the aircraft toward VLDEZ.

Narrative: Flying the DRLLR ONE arrival into IAH we complied with the descend via instructions with no issues. At the fix DOMNO the arrival and the flight plan in the FMS had VLDEZ after DOMNO on a 087 heading. With the autopilot on the FMS never started the turn to VLDEZ and continued on our heading through DOMNO; and kicked into ROL mode. The Captain was pilot flying and quickly took control and started a turn back on course. ATC never inquired therefore we never brought it up. The rest of the arrival was normal. With both the pilot flying and pilot monitoring the undesired aircraft state was limited and quickly corrected. We were aware of going into ROLL mode at the end of the STAR but did not expect it at DOMNO. Realized the FMS did not make the turn to VLDEZ and take action before completely passing through DOMNO.

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.

EMB145 first officer reports his aircraft failing to turn for vldez over domno on the drllr 1 RNAV to iah. Manual intervention is required to turn the aircraft toward vldez.