B767-200ER aircraft descending flight crew failed to reset altimeter and descended 300 ft too low.

Attributes
ACN	399300
Time
Date	199804
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jfk
State Reference	NY
Altitude	msl bound lower : 11700 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	B767-200
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other descent other
Route In Use	enroute : on vectors enroute airway : zbw
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 28000 flight time type : 3000
ASRS Report	399300
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 8000 flight time type : 352
ASRS Report	399478
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure non adherence : clearance other anomaly other
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:

During descent, just prior to changing altimeter setting from 29.92, was given a vector heading by ATC for arrs into jfk. Assigned to descend to 12000 ft MSL. At 11800 ft noticed that we did not change to local altimeter setting. Climbed back to 12000 ft MSL. There was no conflict with any traffic. ATC noticed just moments later 200-300 ft below assigned altitude 12000 ft MSL.

Original NASA ASRS Text

Title: B767-200ER ACFT DSNDING FLC FAILED TO RESET ALTIMETER AND DSNDED 300 FT TOO LOW.

Narrative: DURING DSCNT, JUST PRIOR TO CHANGING ALTIMETER SETTING FROM 29.92, WAS GIVEN A VECTOR HDG BY ATC FOR ARRS INTO JFK. ASSIGNED TO DSND TO 12000 FT MSL. AT 11800 FT NOTICED THAT WE DID NOT CHANGE TO LCL ALTIMETER SETTING. CLBED BACK TO 12000 FT MSL. THERE WAS NO CONFLICT WITH ANY TFC. ATC NOTICED JUST MOMENTS LATER 200-300 FT BELOW ASSIGNED ALT 12000 FT MSL.

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.