Air carrier crew misset altimeters by 1 inch when setting qnh. They were 1000 ft below their cleared...

Attributes
ACN	581312
Time
Date	200305
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : m98.tracon
State Reference	MN
Altitude	msl single value : 10000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : m98.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 3500 flight time type : 650
ASRS Report	581312
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : overshoot inflight encounter : weather inflight encounter other non adherence : clearance non adherence : company policies non adherence : far non adherence : published procedure other anomaly other
Independent Detector	atc equipment other atc equipment : radar other controllera
Resolutory Action	controller : issued alert flight crew : returned to assigned altitude none taken : detected after the fact other
Supplementary
Problem Areas	Weather Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The morning of may/mon/03, air carrier X from orf to msp, we were in the descent phase of flight. We had already got the ATIS and the altimeter setting was 29.44 for msp. Approach control gave us a crossing restr to cross at 10000 ft. When we got there, ATC asked us what was our altitude, we replied 10000 ft. He then said what's your altimeter setting, because it should be 29.44. We replied with embarrassment 30.44 and that meant we were 1000 ft off. We immediately corrected the altimeter setting and climbed back to the appropriate altitude. I have no idea why the first officer and myself put in 30.44 because I had the correct setting on my paper from the ATIS. I believe the cause for this was, we put the incorrect altimeter setting which caused us to be close to 1000 ft off altitude.

Original NASA ASRS Text

Title: ACR CREW MISSET ALTIMETERS BY 1 INCH WHEN SETTING QNH. THEY WERE 1000 FT BELOW THEIR CLRED ALT.

Narrative: THE MORNING OF MAY/MON/03, ACR X FROM ORF TO MSP, WE WERE IN THE DSCNT PHASE OF FLT. WE HAD ALREADY GOT THE ATIS AND THE ALTIMETER SETTING WAS 29.44 FOR MSP. APCH CTL GAVE US A XING RESTR TO CROSS AT 10000 FT. WHEN WE GOT THERE, ATC ASKED US WHAT WAS OUR ALT, WE REPLIED 10000 FT. HE THEN SAID WHAT'S YOUR ALTIMETER SETTING, BECAUSE IT SHOULD BE 29.44. WE REPLIED WITH EMBARRASSMENT 30.44 AND THAT MEANT WE WERE 1000 FT OFF. WE IMMEDIATELY CORRECTED THE ALTIMETER SETTING AND CLBED BACK TO THE APPROPRIATE ALT. I HAVE NO IDEA WHY THE FO AND MYSELF PUT IN 30.44 BECAUSE I HAD THE CORRECT SETTING ON MY PAPER FROM THE ATIS. I BELIEVE THE CAUSE FOR THIS WAS, WE PUT THE INCORRECT ALTIMETER SETTING WHICH CAUSED US TO BE CLOSE TO 1000 FT OFF ALT.

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.

Air carrier crew misset altimeters by 1 inch when setting qnh. They were 1000 ft below their cleared altitude.