MD80 crew had altitude overshoot on the pmm 3 into ord.

Attributes
ACN	468670
Time
Date	200004
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : pmm.vortac
State Reference	IL
Altitude	msl bound lower : 7700 msl bound upper : 8000
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : pmm 3
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	468670
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Altitude deviation. Was hand flying and was distraction momentarily by difference in vors. My VOR showed we were off course. I lost about 300 ft and corrected immediately.

Original NASA ASRS Text

Title: MD80 CREW HAD ALT OVERSHOOT ON THE PMM 3 INTO ORD.

Narrative: ALTDEV. WAS HAND FLYING AND WAS DISTR MOMENTARILY BY DIFFERENCE IN VORS. MY VOR SHOWED WE WERE OFF COURSE. I LOST ABOUT 300 FT AND CORRECTED IMMEDIATELY.

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.