Captain of a DC9 overshot assigned intermediate altitude on descent.

Attributes
ACN	474360
Time
Date	200005
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : jst.vortac
State Reference	PA
Altitude	msl bound lower : 24700 msl bound upper : 25000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob.artcc
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 9000 flight time type : 3000
ASRS Report	474360
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : altimeter other flight crewa
Resolutory Action	flight crew : returned to assigned altitude
Consequence	Other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Captain was flying aircraft. I was copying down ATIS. ATC cleared us to descend to FL250 I read back clearance. While I was copying ATIS I looked up to see altitude at 24700 ft, called out altitude to captain who immediately corrected up to 25000 ft with no further action.

Original NASA ASRS Text

Title: CAPT OF A DC9 OVERSHOT ASSIGNED INTERMEDIATE ALT ON DSCNT.

Narrative: CAPT WAS FLYING ACFT. I WAS COPYING DOWN ATIS. ATC CLRED US TO DSND TO FL250 I READ BACK CLRNC. WHILE I WAS COPYING ATIS I LOOKED UP TO SEE ALT AT 24700 FT, CALLED OUT ALT TO CAPT WHO IMMEDIATELY CORRECTED UP TO 25000 FT WITH NO FURTHER ACTION.

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.