EMB170 flight crew does not meet crossing restr during arrival to dfw.

Attributes
ACN	714176
Time
Date	200610
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : karla
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 170/175 ER&LR
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival star : byp.byp5
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 240 flight time total : 7260 flight time type : 680
ASRS Report	714176
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial pilot : cfi
Experience	flight time last 90 days : 121 flight time total : 3600 flight time type : 1600
ASRS Report	714798
Events
Anomaly	altitude deviation : crossing restriction not met non adherence : published procedure non adherence : clearance
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were on the bonham five arrival into dfw. ATC issued us instructions to cross karla intersection at 11000 ft and to maintain 300 KTS until further advised. We entered and confirmed the crossing restr into the FMS and altitude selector and began our descent. During the descent; ATC advised us which runway to expect. I entered the new runway into the FMS; which involves reentering the arrival procedure. This also resets the crossing restr altitude entered earlier and enters a default altitude; which in this case was higher. I was unaware of this and therefore did not rechk the manual VNAV altitude. This resulted in an incorrect artificial glidepath indication; which we followed. We realized our mistake 10 mi from karla intersection; still 6000 ft high. ATC queried us if we would make the crossing restr and we informed them that it would be close. ATC then slowed us from 300 KTS to 250 KTS which further reduced our descent rate. We crossed karla 1000 ft above our crossing restr. Being aware of the FMS condition; which resets VNAV altitudes when choosing a new runway on the same approach; I will rechk altitudes entered manually. Also; being more situationally aware; by calculating our descent rate mentally as a back-up to the automation; should reduce the possibility of this situation reoccurring.

Original NASA ASRS Text

Title: EMB170 FLT CREW DOES NOT MEET XING RESTR DURING ARR TO DFW.

Narrative: WE WERE ON THE BONHAM FIVE ARR INTO DFW. ATC ISSUED US INSTRUCTIONS TO CROSS KARLA INTXN AT 11000 FT AND TO MAINTAIN 300 KTS UNTIL FURTHER ADVISED. WE ENTERED AND CONFIRMED THE XING RESTR INTO THE FMS AND ALT SELECTOR AND BEGAN OUR DSCNT. DURING THE DSCNT; ATC ADVISED US WHICH RWY TO EXPECT. I ENTERED THE NEW RWY INTO THE FMS; WHICH INVOLVES REENTERING THE ARR PROC. THIS ALSO RESETS THE XING RESTR ALT ENTERED EARLIER AND ENTERS A DEFAULT ALT; WHICH IN THIS CASE WAS HIGHER. I WAS UNAWARE OF THIS AND THEREFORE DID NOT RECHK THE MANUAL VNAV ALT. THIS RESULTED IN AN INCORRECT ARTIFICIAL GLIDEPATH INDICATION; WHICH WE FOLLOWED. WE REALIZED OUR MISTAKE 10 MI FROM KARLA INTXN; STILL 6000 FT HIGH. ATC QUERIED US IF WE WOULD MAKE THE XING RESTR AND WE INFORMED THEM THAT IT WOULD BE CLOSE. ATC THEN SLOWED US FROM 300 KTS TO 250 KTS WHICH FURTHER REDUCED OUR DSCNT RATE. WE CROSSED KARLA 1000 FT ABOVE OUR XING RESTR. BEING AWARE OF THE FMS CONDITION; WHICH RESETS VNAV ALTS WHEN CHOOSING A NEW RWY ON THE SAME APCH; I WILL RECHK ALTS ENTERED MANUALLY. ALSO; BEING MORE SITUATIONALLY AWARE; BY CALCULATING OUR DSCNT RATE MENTALLY AS A BACK-UP TO THE AUTOMATION; SHOULD REDUCE THE POSSIBILITY OF THIS SITUATION REOCCURRING.

Data retrieved from NASA's ASRS site as of January 2009 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.