Pulled wrong SID chart for mdw resulting in climbing to 3000 versus 2000'.

Attributes
ACN	100069
Time
Date	198812
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mdw
State Reference	IL
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial
Route In Use	departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 60 flight time total : 9500 flight time type : 1300
ASRS Report	100069
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I had just completed administering a line check to one of our capts on the previous 2 legs. I was flying the last leg. I copied the clearance and when he returned to the aircraft I had not yet selected the SID from the charts. My first officer checked the clearance, selected the SID and we discussed it. The WX conditions included winds gusting to 30 KTS and low level wind shear which was reported by several aircraft. Since my first officer had operated out of this airport for almost 2 yrs he was very familiar with it. The altitude alerter was set to 3000' and we made every effort to stay south of a radial which is depicted on the chart as a northern boundary for the turn. Having done everything correctly we were both surprised when departure said we were supposed to level off at 2000, not 3000'. Our clearance was for the canal 3 departure and we had looked up the mdw 3 departure. No traffic conflict existed, but this will surely teach me to make absolutely certain that the correct SID is being referenced and not to assume that the other pilot, due to his past experience, has pulled the correct chart. I would suggest a better system would be not to use the same number (ie, 3) on 2 departures which are so similar.

Original NASA ASRS Text

Title: PULLED WRONG SID CHART FOR MDW RESULTING IN CLIMBING TO 3000 VERSUS 2000'.

Narrative: I HAD JUST COMPLETED ADMINISTERING A LINE CHK TO ONE OF OUR CAPTS ON THE PREVIOUS 2 LEGS. I WAS FLYING THE LAST LEG. I COPIED THE CLRNC AND WHEN HE RETURNED TO THE ACFT I HAD NOT YET SELECTED THE SID FROM THE CHARTS. MY F/O CHKED THE CLRNC, SELECTED THE SID AND WE DISCUSSED IT. THE WX CONDITIONS INCLUDED WINDS GUSTING TO 30 KTS AND LOW LEVEL WIND SHEAR WHICH WAS RPTED BY SEVERAL ACFT. SINCE MY F/O HAD OPERATED OUT OF THIS ARPT FOR ALMOST 2 YRS HE WAS VERY FAMILIAR WITH IT. THE ALT ALERTER WAS SET TO 3000' AND WE MADE EVERY EFFORT TO STAY S OF A RADIAL WHICH IS DEPICTED ON THE CHART AS A NORTHERN BOUNDARY FOR THE TURN. HAVING DONE EVERYTHING CORRECTLY WE WERE BOTH SURPRISED WHEN DEP SAID WE WERE SUPPOSED TO LEVEL OFF AT 2000, NOT 3000'. OUR CLRNC WAS FOR THE CANAL 3 DEP AND WE HAD LOOKED UP THE MDW 3 DEP. NO TFC CONFLICT EXISTED, BUT THIS WILL SURELY TEACH ME TO MAKE ABSOLUTELY CERTAIN THAT THE CORRECT SID IS BEING REFERENCED AND NOT TO ASSUME THAT THE OTHER PLT, DUE TO HIS PAST EXPERIENCE, HAS PULLED THE CORRECT CHART. I WOULD SUGGEST A BETTER SYS WOULD BE NOT TO USE THE SAME NUMBER (IE, 3) ON 2 DEPS WHICH ARE SO SIMILAR.

Data retrieved from NASA's ASRS site as of August 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.