Narrative:

While working with lax center we were given several heading changes and finally a turn to 230 degrees (approximately) to intercept the civet 2 profile and cleared the civet 2 profile descent to lax. Contact approach control on frequency (124.5?) approach control was contacted on proper frequency and in proper manner giving necessary ATIS information. There were several speed changes given on final approach that were complied with, the last being 'cross downe at 210 KTS, contact tower at limma.' flight landed at lax uneventfully, on rollout we heard '(carrier) contact lax tower on 120.95.' neither captain or first officer can actually remember whether a landing clearance was actually requested or received. The proper radio frequency was selected on the other side of the transceiver head. There did not appear to be any traffic conflict nor any conflict on landing rollout and turnoff from active runway 25L. Do believe crew should be attentive in this very busy traffic area. Would also have helped if approach control states the proper frequency to contact the tower on -- this would preclude the crew from having to look up the frequency during a very busy flight regime. 2 other suggestions would be for the change to tower frequency be given to the pilot closer to the changeover point and finally should the requested call not be made by the pilot, there could be a reminder made to the pilot from approach control. Supplemental information from acn 210975: looking at radio panel, noticed frequency selector switch was on 'approach control frequency.' tower frequency had been dialed in, but not selected. I do seem to recall hearing a landing clearance for our aircraft, but cannot verify same for a fact and do not recall knowingly moving or bumping the radio head selector switch.

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Original NASA ASRS Text

Title: UNAUTHORIZED LNDG. LNDG WITHOUT CLRNC.

Narrative: WHILE WORKING WITH LAX CTR WE WERE GIVEN SEVERAL HDG CHANGES AND FINALLY A TURN TO 230 DEGS (APPROX) TO INTERCEPT THE CIVET 2 PROFILE AND CLRED THE CIVET 2 PROFILE DSCNT TO LAX. CONTACT APCH CTL ON FREQ (124.5?) APCH CTL WAS CONTACTED ON PROPER FREQ AND IN PROPER MANNER GIVING NECESSARY ATIS INFO. THERE WERE SEVERAL SPD CHANGES GIVEN ON FINAL APCH THAT WERE COMPLIED WITH, THE LAST BEING 'CROSS DOWNE AT 210 KTS, CONTACT TWR AT LIMMA.' FLT LANDED AT LAX UNEVENTFULLY, ON ROLLOUT WE HEARD '(CARRIER) CONTACT LAX TWR ON 120.95.' NEITHER CAPT OR FO CAN ACTUALLY REMEMBER WHETHER A LNDG CLRNC WAS ACTUALLY REQUESTED OR RECEIVED. THE PROPER RADIO FREQ WAS SELECTED ON THE OTHER SIDE OF THE TRANSCEIVER HEAD. THERE DID NOT APPEAR TO BE ANY TFC CONFLICT NOR ANY CONFLICT ON LNDG ROLLOUT AND TURNOFF FROM ACTIVE RWY 25L. DO BELIEVE CREW SHOULD BE ATTENTIVE IN THIS VERY BUSY TFC AREA. WOULD ALSO HAVE HELPED IF APCH CTL STATES THE PROPER FREQ TO CONTACT THE TWR ON -- THIS WOULD PRECLUDE THE CREW FROM HAVING TO LOOK UP THE FREQ DURING A VERY BUSY FLT REGIME. 2 OTHER SUGGESTIONS WOULD BE FOR THE CHANGE TO TWR FREQ BE GIVEN TO THE PLT CLOSER TO THE CHANGEOVER POINT AND FINALLY SHOULD THE REQUESTED CALL NOT BE MADE BY THE PLT, THERE COULD BE A REMINDER MADE TO THE PLT FROM APCH CTL. SUPPLEMENTAL INFO FROM ACN 210975: LOOKING AT RADIO PANEL, NOTICED FREQ SELECTOR SWITCH WAS ON 'APCH CTL FREQ.' TWR FREQ HAD BEEN DIALED IN, BUT NOT SELECTED. I DO SEEM TO RECALL HEARING A LNDG CLRNC FOR OUR ACFT, BUT CANNOT VERIFY SAME FOR A FACT AND DO NOT RECALL KNOWINGLY MOVING OR BUMPING THE RADIO HEAD SELECTOR SWITCH.

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.