Captain of an large transport overshot descent assigned altitude due to distraction and a lack of warning from the altitude alerter and the first officer callout.

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Attributes
ACN	319940
Time
Date	199510
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	msl bound lower : 10300 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : msp
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 7000 flight time type : 1500
ASRS Report	319940
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude altitude deviation : overshoot non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared to 11000 ft, set properly in altitude warning indicator. Passing 12000 ft given radar vector about 30 degree left of track. As I leaned over to turn heading bug, I also dialed inbound ILS course and tuned frequency. At that point, I noted the aircraft passing 10500 ft. I immediately disconnected autoplt, pulled nose up and added power to return to 11000 ft (lowest point was 10300 ft). First officer missed '1000 ft to go' call. Autoplt did not have altitude set mode. ATC did not notice or notify us of our altitude diversion. We did not report the discrepancy to approach control.

Original NASA ASRS Text

Title: CAPT OF AN LGT OVERSHOT DSCNT ASSIGNED ALT DUE TO DISTR AND A LACK OF WARNING FROM THE ALT ALERTER AND THE FO CALLOUT.

Narrative: CLRED TO 11000 FT, SET PROPERLY IN ALT WARNING INDICATOR. PASSING 12000 FT GIVEN RADAR VECTOR ABOUT 30 DEG L OF TRACK. AS I LEANED OVER TO TURN HDG BUG, I ALSO DIALED INBOUND ILS COURSE AND TUNED FREQ. AT THAT POINT, I NOTED THE ACFT PASSING 10500 FT. I IMMEDIATELY DISCONNECTED AUTOPLT, PULLED NOSE UP AND ADDED PWR TO RETURN TO 11000 FT (LOWEST POINT WAS 10300 FT). FO MISSED '1000 FT TO GO' CALL. AUTOPLT DID NOT HAVE ALT SET MODE. ATC DID NOT NOTICE OR NOTIFY US OF OUR ALT DIVERSION. WE DID NOT RPT THE DISCREPANCY TO APCH CTL.

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.