Emb-145 captain reported that while flying the DRLLR3 RNAV to iah his aircraft came out of LNAV and ...

Attributes
ACN	1228242
Time
Date	201412
Local Time Of Day	1801-2400
Place
Locale Reference	I90.TRACON
State Reference	TX
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR DRLLR
Flight Plan	IFR
Component
Aircraft Component	Autoflight System
Person 1
Function	Pilot Not Flying Captain
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Track / Heading All Types

Narrative:

Flight filed the DRLLR3 arrival into iah. Upon [being] switched over to approach control with runway assigned and programmed in the FMS; aircraft continues to flying the arrival until domno fix [when] ac took itself off LNAV mode and went into roll mode. Crew notify ATC of the situation; of which they are aware and had the crew fly a heading to re-intercept. ATC notified crew this is normal for [our] aircraft [type] or happens a lot for [company] aircraft. This has happened a few times on this arrival with my crew coming into iah. There weren't any ghost fixes on the arrival once the runway was inputed into the FMS. Crew review the arrival.

Original NASA ASRS Text

Title: EMB-145 Captain reported that while flying the DRLLR3 RNAV to IAH his aircraft came out of LNAV and reverted to ROLL mode. Reporter commented this is not uncommon on this type aircraft.

Narrative: Flight filed the DRLLR3 arrival into IAH. Upon [being] switched over to approach control with runway assigned and programmed in the FMS; aircraft continues to flying the arrival until DOMNO fix [when] ac took itself off LNAV mode and went into roll mode. Crew notify ATC of the situation; of which they are aware and had the crew fly a heading to re-intercept. ATC notified crew this is normal for [our] aircraft [type] or happens a lot for [company] aircraft. This has happened a few times on this arrival with my crew coming into IAH. There weren't any ghost fixes on the arrival once the runway was inputed into the FMS. Crew review the arrival.

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.

Emb-145 captain reported that while flying the DRLLR3 RNAV to iah his aircraft came out of LNAV and reverted to roll mode. Reporter commented this is not uncommon on this type aircraft.