During descent, DC9 overshot assigned 7000 ft by 400 ft.

Attributes
ACN	349170
Time
Date	199610
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : stl
State Reference	MO
Altitude	msl bound lower : 6600 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : stl tower : dfw
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise other 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 : 250 flight time total : 13400 flight time type : 7600
ASRS Report	349170
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	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:

Approach assigned an altitude of 7000 ft. Upon descending from 15000 ft down to 7000 ft, aircraft descended to 6600 ft. Immediately climbed back to 7000 ft. First officer was flying aircraft.

Original NASA ASRS Text

Title: DURING DSCNT, DC9 OVERSHOT ASSIGNED 7000 FT BY 400 FT.

Narrative: APCH ASSIGNED AN ALT OF 7000 FT. UPON DSNDING FROM 15000 FT DOWN TO 7000 FT, ACFT DSNDED TO 6600 FT. IMMEDIATELY CLBED BACK TO 7000 FT. FO WAS FLYING ACFT.

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.