Altimeter setting. Air carrier flight crew does not reset the altimeters above FL180 so they level off high until the ARTCC radar controller reminds them.

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Attributes
ACN	306357
Time
Date	199505
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pll
State Reference	IL
Altitude	msl bound lower : 31000 msl bound upper : 31400
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute airway : zau
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain instruction : trainee
Qualification	pilot : commercial pilot : cfi pilot : atp pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 80 flight time total : 8700 flight time type : 28
ASRS Report	306357
Person 2
Affiliation	company : air carrier
Function	instruction : instructor oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Climbing to cruise altitude, I was the PNF. I was operating the radios and plotting sigmets that had been sent to us along our route via ACARS. Upon leveling at FL310, ATC notified us that their radar showed us at FL314. Checking our altimeters we immediately set them to 29.92 and descended to FL310. There was no conflict and the excursion was corrected in less than 30 seconds. Altimeter in dtw was 29.54 and our workload was very high in the climb.

Original NASA ASRS Text

Title: ALTIMETER SETTING. ACR FLC DOES NOT RESET THE ALTIMETERS ABOVE FL180 SO THEY LEVEL OFF HIGH UNTIL THE ARTCC RADAR CTLR REMINDS THEM.

Narrative: CLBING TO CRUISE ALT, I WAS THE PNF. I WAS OPERATING THE RADIOS AND PLOTTING SIGMETS THAT HAD BEEN SENT TO US ALONG OUR RTE VIA ACARS. UPON LEVELING AT FL310, ATC NOTIFIED US THAT THEIR RADAR SHOWED US AT FL314. CHKING OUR ALTIMETERS WE IMMEDIATELY SET THEM TO 29.92 AND DSNDED TO FL310. THERE WAS NO CONFLICT AND THE EXCURSION WAS CORRECTED IN LESS THAN 30 SECONDS. ALTIMETER IN DTW WAS 29.54 AND OUR WORKLOAD WAS VERY HIGH IN THE CLB.

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.