A saab 340 flight crew had a DC9 pass behind and over it on departure from mem.

Attributes
ACN	452366
Time
Date	199910
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mem.airport
State Reference	TN
Altitude	msl single value : 8500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : mem.tracon
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mem.tracon
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 270 flight time total : 9800 flight time type : 4000
ASRS Report	452366
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Events
Anomaly	conflict : airborne critical non adherence : clearance non adherence : required legal separation
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took precautionary avoidance action
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

A DC9 passed 600 ft above and behind us during climb out. Departure control asked us to keep the DC9 in sight and the DC9 to keep us in sight. TCASII advised to shallow out our climb, which we did, before the warning (not to stop our climb). We had the DC9 in sight at all times and kept visual separation as best as we could, but the speed of the DC9 was fast and closing on us. All our exterior lights were illuminated. We did try to increase our airspeed to move further west out of its way, but it seemed as if the DC9 remained on a collision course with us.

Original NASA ASRS Text

Title: A SAAB 340 FLC HAD A DC9 PASS BEHIND AND OVER IT ON DEP FROM MEM.

Narrative: A DC9 PASSED 600 FT ABOVE AND BEHIND US DURING CLBOUT. DEP CTL ASKED US TO KEEP THE DC9 IN SIGHT AND THE DC9 TO KEEP US IN SIGHT. TCASII ADVISED TO SHALLOW OUT OUR CLB, WHICH WE DID, BEFORE THE WARNING (NOT TO STOP OUR CLB). WE HAD THE DC9 IN SIGHT AT ALL TIMES AND KEPT VISUAL SEPARATION AS BEST AS WE COULD, BUT THE SPD OF THE DC9 WAS FAST AND CLOSING ON US. ALL OUR EXTERIOR LIGHTS WERE ILLUMINATED. WE DID TRY TO INCREASE OUR AIRSPD TO MOVE FURTHER W OUT OF ITS WAY, BUT IT SEEMED AS IF THE DC9 REMAINED ON A COLLISION COURSE WITH US.

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.