Air carrier medium large transport altitude deviation overshot during descent into den.

Attributes
ACN	147767
Time
Date	199006
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : den
State Reference	CO
Altitude	msl bound lower : 15900 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent other
Route In Use	arrival star : star enroute airway : zdv
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 100 flight time total : 14000 flight time type : 3000
ASRS Report	147767
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure non adherence : clearance
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying at medium large transport EFIS equipped aircraft. The first officer was highly qualified in other transport category aircraft, however, this was his third flight since completion of initial training in an EFIS equipped aircraft. Approaching denver VOR from the northwest, we were cleared from FL240 for the profile descent to denver (drako intersection FL230-170, 250 KTS) then descend to 13000'. I discussed entry of the crossing data in the CDU with the first officer. Additionally, I stressed 17000', our first restriction, to be inserted in the altitude alert window. Despite that conversation, I inserted the final crossing altitude in both the CDU and the altitude alert window for drako intersection (FL230-17000'). ARTCC alerted us of our deviation at 15900'. We rapidly returned to 17000' to be reclred to 13000' within one min. A simple oversight in a detailed conversation still concerns me. Once the numbers are punched in, the pilot feels secure that everything will work smoothly. However, the aircraft still would not have descended early had I not entered the wrong altitude in the altitude alert window. That's a fundamental precept even in older generation aircraft. Henceforth, after all numbers are inserted by one pilot, the other pilot will have to confirm entered data, especially concerning crossing restrictions.

Original NASA ASRS Text

Title: ACR MLG ALT DEVIATION OVERSHOT DURING DESCENT INTO DEN.

Narrative: I WAS FLYING AT MLG EFIS EQUIPPED ACFT. THE F/O WAS HIGHLY QUALIFIED IN OTHER TRANSPORT CATEGORY ACFT, HOWEVER, THIS WAS HIS THIRD FLT SINCE COMPLETION OF INITIAL TRNING IN AN EFIS EQUIPPED ACFT. APCHING DENVER VOR FROM THE NW, WE WERE CLRED FROM FL240 FOR THE PROFILE DSNT TO DENVER (DRAKO INTXN FL230-170, 250 KTS) THEN DSND TO 13000'. I DISCUSSED ENTRY OF THE XING DATA IN THE CDU WITH THE F/O. ADDITIONALLY, I STRESSED 17000', OUR FIRST RESTRICTION, TO BE INSERTED IN THE ALT ALERT WINDOW. DESPITE THAT CONVERSATION, I INSERTED THE FINAL XING ALT IN BOTH THE CDU AND THE ALT ALERT WINDOW FOR DRAKO INTXN (FL230-17000'). ARTCC ALERTED US OF OUR DEV AT 15900'. WE RAPIDLY RETURNED TO 17000' TO BE RECLRED TO 13000' WITHIN ONE MIN. A SIMPLE OVERSIGHT IN A DETAILED CONVERSATION STILL CONCERNS ME. ONCE THE NUMBERS ARE PUNCHED IN, THE PLT FEELS SECURE THAT EVERYTHING WILL WORK SMOOTHLY. HOWEVER, THE ACFT STILL WOULD NOT HAVE DSNDED EARLY HAD I NOT ENTERED THE WRONG ALT IN THE ALT ALERT WINDOW. THAT'S A FUNDAMENTAL PRECEPT EVEN IN OLDER GENERATION ACFT. HENCEFORTH, AFTER ALL NUMBERS ARE INSERTED BY ONE PLT, THE OTHER PLT WILL HAVE TO CONFIRM ENTERED DATA, ESPECIALLY CONCERNING XING RESTRICTIONS.

Data retrieved from NASA's ASRS site as of July 2007 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.