An altimeter setting is issued by approach control. The crew notes they have been using an incorrect...

Attributes
ACN	569923
Time
Date	200301
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mdw.airport
State Reference	IL
Altitude	msl single value : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : c90.tracon tower : dtw.tower
Operator	common carrier : air carrier
Make Model Name	B737-600
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 31c other vortac
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival star : motif
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 145 flight time total : 9000 flight time type : 7000
ASRS Report	569923
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 250 flight time total : 7000 flight time type : 3000
ASRS Report	569924
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : far
Independent Detector	other controllerb
Resolutory Action	flight crew : returned to assigned altitude
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Wrong altimeter. On descent, approaching joliet (jot) on the motif arrival, approaching 6000 ft crossing restr 5 mi south of joliet, we were switched over to chicago approach. He cleared us direct gleam on the ILS runway 31C, and told us the altimeter was 30.02. I noticed we had xx.xx(?) did not say anything out of the ordinary. Altimeter set improperly due to having the abq ATIS napkin facing out, I had written mdw ATIS on the other side (throw old napkin out). I also missed the altimeter setting given by ZAU on descent. Normally, I set this in the standby to check local ATIS.

Original NASA ASRS Text

Title: AN ALTIMETER SETTING IS ISSUED BY APCH CTL. THE CREW NOTES THEY HAVE BEEN USING AN INCORRECT ONE.

Narrative: WRONG ALTIMETER. ON DSCNT, APCHING JOLIET (JOT) ON THE MOTIF ARR, APCHING 6000 FT XING RESTR 5 MI S OF JOLIET, WE WERE SWITCHED OVER TO CHICAGO APCH. HE CLRED US DIRECT GLEAM ON THE ILS RWY 31C, AND TOLD US THE ALTIMETER WAS 30.02. I NOTICED WE HAD XX.XX(?) DID NOT SAY ANYTHING OUT OF THE ORDINARY. ALTIMETER SET IMPROPERLY DUE TO HAVING THE ABQ ATIS NAPKIN FACING OUT, I HAD WRITTEN MDW ATIS ON THE OTHER SIDE (THROW OLD NAPKIN OUT). I ALSO MISSED THE ALTIMETER SETTING GIVEN BY ZAU ON DSCNT. NORMALLY, I SET THIS IN THE STANDBY TO CHK LCL ATIS.

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.

An altimeter setting is issued by approach control. The crew notes they have been using an incorrect one.