Emb-145 first officer reports being switched from 26R to runway 26L during the drllr RNAV arrival. W...

Narrative:

We were given the drllr one arrival on takeoff. We were rerouted to a different arrival and later given drllr one again. We entered the 26R approach in our FMS and some point around drllr; we were given the 26L runway assignment. We changed the FMS to the new runway and verified it. We arrived at the domno fix and our plane continued on its present course and did not turn. As the navigation system changed to roll mode; we were tcs'ing the plane to the left to get it back on course. The controller then questioned if we were turning and replied we were already in the turn. He stated that a lot of company planes were having issues with changing runways in the FMS and it was causing a problem. After we were back on course and going through 7;000 ft; the captain stated we were to stop at 7;000 ft for vldez. I tcs'ed the plane again and started a climb back up to the new altitude of 7;000 ft. The controller was busy with other a/c and we did not hear anything about the momentary altitude change. Iah changing runways and having two different altitudes for the same arrival is a major threat. Our current FMS software during changing runways is also a major threat since the system does not work right. Not accepting any runway changes or arrival changes once we are on the arrival.

Original NASA ASRS Text

Title: EMB-145 First Officer reports being switched from 26R to Runway 26L during the DRLLR RNAV arrival. When the runway is changed the transition drops out and is not re-entered by the crew; resulting in a track deviation at DOMNO.

Narrative: We were given the DRLLR one arrival on takeoff. We were rerouted to a different arrival and later given DRLLR one again. We entered the 26R approach in our FMS and some point around DRLLR; we were given the 26L runway assignment. We changed the FMS to the new runway and verified it. We arrived at the DOMNO fix and our plane continued on its present course and did not turn. As the NAV system changed to roll mode; we were TCS'ing the plane to the left to get it back on course. The Controller then questioned if we were turning and replied we were already in the turn. He stated that a lot of Company planes were having issues with changing runways in the FMS and it was causing a problem. After we were back on course and going through 7;000 FT; the Captain stated we were to stop at 7;000 FT for VLDEZ. I TCS'ed the plane again and started a climb back up to the new altitude of 7;000 FT. The Controller was busy with other a/c and we did not hear anything about the momentary altitude change. IAH changing runways and having two different altitudes for the same arrival is a major threat. Our current FMS software during changing runways is also a major threat since the system does not work right. Not accepting any runway changes or arrival changes once we are on 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.

Attributes
ACN	1178533
Time
Date	201406
Local Time Of Day	1801-2400
Place
Locale Reference	I90.TRACON
State Reference	TX
Environment
Flight Conditions	VMC
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
Component
Aircraft Component	FMS/FMC
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Aircraft Equipment Problem Less Severe Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types

Emb-145 first officer reports being switched from 26R to runway 26L during the drllr RNAV arrival. When the runway is changed the transition drops out and is not re-entered by the crew; resulting in a track deviation at domno.