Narrative:

We departed mia approximately 2 mi behind an MD80. We were initially cleared to 5000 ft on the SID. Departure control cleared us up to 7000 ft. Both MD80 and us were flying runway heading. Departure gave MD80 a 300 degree heading. Shortly after that we were given a 360 degree heading. MD80 was given a 270 degree heading (now heading towards us at the same altitude). We got a TA and spotted the MD80 approximately 2 mi away. Departure never told us about him. Departure then gave us a 280 degree heading which now put us on a parallel course. As I was reading back the clearance we got an RA. We lost sight of the MD80 as we rolled into the left turn. I assume the MD80 got an RA to descend as he passed under us and we ended up on the same heading approximately 500 ft apart after the event was over. (That 500 ft was based on information directly from our navigation display (nd)). I don't remember ever hearing the MD80 on the frequency, even after the RA. Supplemental information from acn 357836: aircraft #1 was issued a vector to diverge from aircraft #2. Aircraft #2 was then issued a climb 3 times without a response. Pilot returned on frequency stating an RA to descend was issued by his TCASII equipment. If not for diverging courses, this might have been a problem. Supplemental information from acn 357436: TCASII RA 7000 ft and level, 250 KTS, heading 300 degrees, in contact mia departure. Received RA, followed by descend command. Descended to 6000 ft. An airbus 320 also at 7000 ft passed overhead. ATC gave us a turn to 330 degrees. ATC seemed to have lost control of the situation. We were never closer than 1000 ft vertically. Horizontal range unknown.

Google
 

Original NASA ASRS Text

Title: A320 DEPARTED MIA 2 MI BEHIND MD80 BOTH ON RWY HEADING. BOTH ACFT CLRED TO 7000 FT, MD80 300 DEG HDG AND A320 360 DEG HDG. MD80 GIVEN 270 DEG HDG WHICH PUT THEM ON A CONVERGING COURSE. FLC OF A320 DID NOT HEAR THE MD80 ACKNOWLEDGE ANY CALLS. GOT TA ON TCASII AND ASSUMED MD80 GOT RA BECAUSE HE DSNDED AND PASSED 400 FT BELOW. CTLR FEELS HEADING CHANGES TOOK CARE OF THE SEPARATION.

Narrative: WE DEPARTED MIA APPROX 2 MI BEHIND AN MD80. WE WERE INITIALLY CLRED TO 5000 FT ON THE SID. DEP CTL CLRED US UP TO 7000 FT. BOTH MD80 AND US WERE FLYING RWY HEADING. DEP GAVE MD80 A 300 DEG HDG. SHORTLY AFTER THAT WE WERE GIVEN A 360 DEG HDG. MD80 WAS GIVEN A 270 DEG HDG (NOW HEADING TOWARDS US AT THE SAME ALT). WE GOT A TA AND SPOTTED THE MD80 APPROX 2 MI AWAY. DEP NEVER TOLD US ABOUT HIM. DEP THEN GAVE US A 280 DEG HDG WHICH NOW PUT US ON A PARALLEL COURSE. AS I WAS READING BACK THE CLRNC WE GOT AN RA. WE LOST SIGHT OF THE MD80 AS WE ROLLED INTO THE L TURN. I ASSUME THE MD80 GOT AN RA TO DSND AS HE PASSED UNDER US AND WE ENDED UP ON THE SAME HEADING APPROX 500 FT APART AFTER THE EVENT WAS OVER. (THAT 500 FT WAS BASED ON INFO DIRECTLY FROM OUR NAV DISPLAY (ND)). I DON'T REMEMBER EVER HEARING THE MD80 ON THE FREQ, EVEN AFTER THE RA. SUPPLEMENTAL INFO FROM ACN 357836: ACFT #1 WAS ISSUED A VECTOR TO DIVERGE FROM ACFT #2. ACFT #2 WAS THEN ISSUED A CLB 3 TIMES WITHOUT A RESPONSE. PLT RETURNED ON FREQ STATING AN RA TO DSND WAS ISSUED BY HIS TCASII EQUIP. IF NOT FOR DIVERGING COURSES, THIS MIGHT HAVE BEEN A PROB. SUPPLEMENTAL INFO FROM ACN 357436: TCASII RA 7000 FT AND LEVEL, 250 KTS, HDG 300 DEGS, IN CONTACT MIA DEP. RECEIVED RA, FOLLOWED BY DSND COMMAND. DSNDED TO 6000 FT. AN AIRBUS 320 ALSO AT 7000 FT PASSED OVERHEAD. ATC GAVE US A TURN TO 330 DEGS. ATC SEEMED TO HAVE LOST CTL OF THE SIT. WE WERE NEVER CLOSER THAN 1000 FT VERTLY. HORIZ RANGE UNKNOWN.

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.