Near midair collision.

Attributes
ACN	317023
Time
Date	199509
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mdw
State Reference	IL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Sail Plane
Operating Under FAR Part	Part 91
Flight Phase	descent other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : commercial pilot : private
Experience	flight time last 90 days : 200 flight time total : 7500 flight time type : 1100
ASRS Report	317023
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

On approach to midway, passed over sailplane/glider near our altitude. Shortly afterwards, spotted 2ND sailplane at our 11:30 O'clock slightly below us, range approximately 2 mi. As we closed to about a mi, the glider turned into us with a slight climb. We took evasive action by climbing. As we were descending back to our altitude, we had an 'RA' necessitating a 2ND climb. Observed a twin pass directly underneath us about 600-1000 ft underneath. As he passed underneath, chicago approach gave us a 'traffic' call. We then told him about the gliders, his response was 'yea, they don't show up on our radar, so we don't know they are there.' when we landed at midway, we met a pilot who lives in chicago who told us there is a soaring club southwest of midway and that the gliders have been an ongoing problem for yrs.

Original NASA ASRS Text

Title: NMAC.

Narrative: ON APCH TO MIDWAY, PASSED OVER SAILPLANE/GLIDER NEAR OUR ALT. SHORTLY AFTERWARDS, SPOTTED 2ND SAILPLANE AT OUR 11:30 O'CLOCK SLIGHTLY BELOW US, RANGE APPROX 2 MI. AS WE CLOSED TO ABOUT A MI, THE GLIDER TURNED INTO US WITH A SLIGHT CLB. WE TOOK EVASIVE ACTION BY CLBING. AS WE WERE DSNDING BACK TO OUR ALT, WE HAD AN 'RA' NECESSITATING A 2ND CLB. OBSERVED A TWIN PASS DIRECTLY UNDERNEATH US ABOUT 600-1000 FT UNDERNEATH. AS HE PASSED UNDERNEATH, CHICAGO APCH GAVE US A 'TFC' CALL. WE THEN TOLD HIM ABOUT THE GLIDERS, HIS RESPONSE WAS 'YEA, THEY DON'T SHOW UP ON OUR RADAR, SO WE DON'T KNOW THEY ARE THERE.' WHEN WE LANDED AT MIDWAY, WE MET A PLT WHO LIVES IN CHICAGO WHO TOLD US THERE IS A SOARING CLUB SW OF MIDWAY AND THAT THE GLIDERS HAVE BEEN AN ONGOING PROB FOR YRS.

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.