Narrative:

Night visual approach lax 24R. After crossing smo at 7000 ft MSL, descended to 5000 ft MSL heading 070 degrees. After an extended downwind the controller cleared the flight for a visual approach to runway 24R and switched to tower frequency on base leg. No traffic was reported. Wind from the north caused a slight overshoot of centerline. After rolling out on final with the landing gear down and flaps 5 degrees, a TCASII TA was received quickly followed by an RA 'descend, descend, descend.' the TCASII screen was checked and indicated a plus 300 descending red square within the 2 NM ring with the vsi recommending a descent in excess of 2500 FPM, possibly more. Looked up and saw a commuter aircraft at 1 O'clock, descending in a right turn (20-30 degrees), also on approach to the runway 24 complex. Maneuvered to pass behind and slightly above the other aircraft. The maneuver consisted of an immediate right turn, a slight climb and flaps to 15 degrees. The tower then cleared the commuter to land on 24L and reclred our flight to land 24R supplemental information from acn 225538: controller training seems to be in progress. I reported inbound for 24R and asked tower about traffic. He seemed surprised. After a delay of any communication with the tower, we turned right about 60 degrees, leveled off, and passed behind the commuter.

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Original NASA ASRS Text

Title: FLC OF MLG ACR ACFT TOOK EVASIVE ACTION TO AVOID ANOTHER ACFT ON FINAL TO A PARALLEL RWY DURING A NIGHT VISUAL APCH.

Narrative: NIGHT VISUAL APCH LAX 24R. AFTER XING SMO AT 7000 FT MSL, DSNDED TO 5000 FT MSL HDG 070 DEGS. AFTER AN EXTENDED DOWNWIND THE CTLR CLRED THE FLT FOR A VISUAL APCH TO RWY 24R AND SWITCHED TO TWR FREQ ON BASE LEG. NO TFC WAS RPTED. WIND FROM THE N CAUSED A SLIGHT OVERSHOOT OF CTRLINE. AFTER ROLLING OUT ON FINAL WITH THE LNDG GEAR DOWN AND FLAPS 5 DEGS, A TCASII TA WAS RECEIVED QUICKLY FOLLOWED BY AN RA 'DSND, DSND, DSND.' THE TCASII SCREEN WAS CHKED AND INDICATED A PLUS 300 DSNDING RED SQUARE WITHIN THE 2 NM RING WITH THE VSI RECOMMENDING A DSCNT IN EXCESS OF 2500 FPM, POSSIBLY MORE. LOOKED UP AND SAW A COMMUTER ACFT AT 1 O'CLOCK, DSNDING IN A R TURN (20-30 DEGS), ALSO ON APCH TO THE RWY 24 COMPLEX. MANEUVERED TO PASS BEHIND AND SLIGHTLY ABOVE THE OTHER ACFT. THE MANEUVER CONSISTED OF AN IMMEDIATE R TURN, A SLIGHT CLB AND FLAPS TO 15 DEGS. THE TWR THEN CLRED THE COMMUTER TO LAND ON 24L AND RECLRED OUR FLT TO LAND 24R SUPPLEMENTAL INFO FROM ACN 225538: CTLR TRAINING SEEMS TO BE IN PROGRESS. I RPTED INBOUND FOR 24R AND ASKED TWR ABOUT TFC. HE SEEMED SURPRISED. AFTER A DELAY OF ANY COM WITH THE TWR, WE TURNED R ABOUT 60 DEGS, LEVELED OFF, AND PASSED BEHIND THE COMMUTER.

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.