Altitude deviation altitude undershot in descent.

Attributes
ACN	238849
Time
Date	199304
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 11000 msl bound upper : 11250
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 6500 flight time type : 600
ASRS Report	238849
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot non adherence : clearance non adherence : published procedure other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : became reoriented flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon descending into ord, we failed to reset altimeter out of 18000 ft. We leveled off at 11000 ft. Local altitude setting was 30.18. Altitude was 250 ft off because of erroneous setting. Cockpit environment was busy getting changeover, making crossing restrictions, tuning FMS for approachs and runway. Something so basic overlooked on fast descent and complex computer automation.

Original NASA ASRS Text

Title: ALTDEV ALT UNDERSHOT IN DSCNT.

Narrative: UPON DSNDING INTO ORD, WE FAILED TO RESET ALTIMETER OUT OF 18000 FT. WE LEVELED OFF AT 11000 FT. LCL ALT SETTING WAS 30.18. ALT WAS 250 FT OFF BECAUSE OF ERRONEOUS SETTING. COCKPIT ENVIRONMENT WAS BUSY GETTING CHANGEOVER, MAKING XING RESTRICTIONS, TUNING FMS FOR APCHS AND RWY. SOMETHING SO BASIC OVERLOOKED ON FAST DSCNT AND COMPLEX COMPUTER AUTOMATION.

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.