Narrative:

Did not establish vertical/longitudinal separation prior to both established on final approach course on north/south parallel runway confign, simultaneous approachs in progress runway 18L/right. Error in controller judgement. Trying to 'hit' interval with air carrier X on runway 18L which interval did not materialize and decreased to point which resulted in less than standard separation. Air carrier X turned away from final approach course and resequenced for approach to runway 18L without further incident. Supplemental information from acn 252137: during the arrival phase of air carrier X, we were being vectored by clt approach control for ILS 18L approach at clt. There were multiple approachs in progress to runways 18L/right at the time. We were given a 360 degree heading for the downwind leg for ILS 18L clt. A descent was issued to 3600 ft MSL. At approximately 15 mi northeast, a left turn was issued by the controller to a heading of 280 degrees. During the turn the controller gave us a left turn to 360 degrees. When questioned on the direction of the turn, the controller said left to 260 degrees and cleared to descend to 3100 ft (still east of the 18L localizer.) upon reaching 3100 ft and heading 260 degrees, we received a TCASII warning RA with a don't climb, descend. We saw a target on the TCASII screen (5 mi range) just off our right side and confirmed the traffic visually (in broken clouds). At the same time the controller said, 'turn left to 360 degrees, tight turn and climb to 3600 ft' (still east of localizer 18L, never intercepted). The wind at 3500 ft was 270 degrees at 18 KTS. We received clear of conflict as we were turning through 180 degrees back around to 360 degrees. We were vectored north approximately 18 mi and turned back for a normal approach and landing.

Related reports:

Google
 

Original NASA ASRS Text

Title: MULTIPLE RWY OP PARALLEL RWY APCHS ACR X HAD LTSS FROM ACR Y. SYS ERROR. ACR X TCASII RA.

Narrative: DID NOT ESTABLISH VERT/LONGITUDINAL SEPARATION PRIOR TO BOTH ESTABLISHED ON FINAL APCH COURSE ON N/S PARALLEL RWY CONFIGN, SIMULTANEOUS APCHS IN PROGRESS RWY 18L/R. ERROR IN CTLR JUDGEMENT. TRYING TO 'HIT' INTERVAL WITH ACR X ON RWY 18L WHICH INTERVAL DID NOT MATERIALIZE AND DECREASED TO POINT WHICH RESULTED IN LTSS. ACR X TURNED AWAY FROM FINAL APCH COURSE AND RESEQUENCED FOR APCH TO RWY 18L WITHOUT FURTHER INCIDENT. SUPPLEMENTAL INFORMATION FROM ACN 252137: DURING THE ARR PHASE OF ACR X, WE WERE BEING VECTORED BY CLT APCH CTL FOR ILS 18L APCH AT CLT. THERE WERE MULTIPLE APCHS IN PROGRESS TO RWYS 18L/R AT THE TIME. WE WERE GIVEN A 360 DEG HDG FOR THE DOWNWIND LEG FOR ILS 18L CLT. A DSCNT WAS ISSUED TO 3600 FT MSL. AT APPROX 15 MI NE, A L TURN WAS ISSUED BY THE CTLR TO A HDG OF 280 DEGS. DURING THE TURN THE CTLR GAVE US A L TURN TO 360 DEGS. WHEN QUESTIONED ON THE DIRECTION OF THE TURN, THE CTLR SAID L TO 260 DEGS AND CLRED TO DSND TO 3100 FT (STILL E OF THE 18L LOC.) UPON REACHING 3100 FT AND HDG 260 DEGS, WE RECEIVED A TCASII WARNING RA WITH A DON'T CLB, DSND. WE SAW A TARGET ON THE TCASII SCREEN (5 MI RANGE) JUST OFF OUR R SIDE AND CONFIRMED THE TFC VISUALLY (IN BROKEN CLOUDS). AT THE SAME TIME THE CTLR SAID, 'TURN L TO 360 DEGS, TIGHT TURN AND CLB TO 3600 FT' (STILL E OF LOC 18L, NEVER INTERCEPTED). THE WIND AT 3500 FT WAS 270 DEGS AT 18 KTS. WE RECEIVED CLR OF CONFLICT AS WE WERE TURNING THROUGH 180 DEGS BACK AROUND TO 360 DEGS. WE WERE VECTORED N APPROX 18 MI AND TURNED BACK FOR A NORMAL APCH AND LNDG.

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.