DC10 crew failed to reset altimeter descending through FL180 near seattle.

Attributes
ACN	458620
Time
Date	199912
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : jaksn
State Reference	WA
Altitude	msl bound lower : 12000 msl bound upper : 12600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Route In Use	arrival star : glasr.3
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 200 flight time total : 19000 flight time type : 3500
ASRS Report	458620
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 7000 flight time type : 1400
ASRS Report	458616
Events
Anomaly	altitude deviation : undershoot non adherence : clearance non adherence : company policies non adherence : far other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During descent for arrival, PIC failed to call for descent checklist and we leveled off at 12600 ft rather than our assigned crossing altitude of 12000 ft. We were conducting a CAT ii approach briefing during descent and neglected to set local altimeter as we passed FL180.

Original NASA ASRS Text

Title: DC10 CREW FAILED TO RESET ALTIMETER DSNDING THROUGH FL180 NEAR SEATTLE.

Narrative: DURING DSCNT FOR ARR, PIC FAILED TO CALL FOR DSCNT CHKLIST AND WE LEVELED OFF AT 12600 FT RATHER THAN OUR ASSIGNED XING ALT OF 12000 FT. WE WERE CONDUCTING A CAT II APCH BRIEFING DURING DSCNT AND NEGLECTED TO SET LCL ALTIMETER AS WE PASSED FL180.

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.