Narrative:

We were on an IFR flight plan from sac to sjc with the flight terminating at the sjc airport. We were on bay approach on a right downwind for a landing on runway 12R. Bay cleared us for a visual approach and instructed us to turn base over moffett at 2000 ft to allow for departures at sjc. A short time later, bay came back and cleared us to turn base before moffett because there were no departures in progress at the time. I was the PNF and my first officer was the PF. We turned base and I ran the before landing checklist. It was a chilly morning so we had the heat on in the cabin. The cockpit was warm, the flight was smooth and there was no traffic on the frequency and nothing moving on the ground at sjc. Our landing was uneventful and quite normal until I reached up to change to ground control frequency and found to my horror that we were still on the approach frequency. I immediately switched to tower and confessed my grievous error. We were very lucky that we were the only aircraft in the pattern at the time (a very unusual situation at sjc). The last communication was with bay approach before reaching moffett. Bay did not hand us off to the tower. We should have caught this. Factors which contributed to this situation include the following: 1) we frequent sjc on a daily basis and therefore were complacent. 2) this was the 4TH early wake-up this week and we were both a little weary. 3) even though I try to run a tight and disciplined cockpit -- by the book -- this morning I was enjoying the sights and did not keep my mind in the cockpit. Repetitious flts such as this one can be fine tuned to run very smoothly, however, we must discipline ourselves to not allow our attention to be diverted because we have done it so many times.

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Original NASA ASRS Text

Title: FLC OF A CPR OPERATED BEECH 1900 LANDED WITHOUT CLRNC DUE TO NOT BEING INSTRUCTED TO DO SO BY APCH AND COMPLACENCY.

Narrative: WE WERE ON AN IFR FLT PLAN FROM SAC TO SJC WITH THE FLT TERMINATING AT THE SJC ARPT. WE WERE ON BAY APCH ON A R DOWNWIND FOR A LNDG ON RWY 12R. BAY CLRED US FOR A VISUAL APCH AND INSTRUCTED US TO TURN BASE OVER MOFFETT AT 2000 FT TO ALLOW FOR DEPS AT SJC. A SHORT TIME LATER, BAY CAME BACK AND CLRED US TO TURN BASE BEFORE MOFFETT BECAUSE THERE WERE NO DEPS IN PROGRESS AT THE TIME. I WAS THE PNF AND MY FO WAS THE PF. WE TURNED BASE AND I RAN THE BEFORE LNDG CHKLIST. IT WAS A CHILLY MORNING SO WE HAD THE HEAT ON IN THE CABIN. THE COCKPIT WAS WARM, THE FLT WAS SMOOTH AND THERE WAS NO TFC ON THE FREQ AND NOTHING MOVING ON THE GND AT SJC. OUR LNDG WAS UNEVENTFUL AND QUITE NORMAL UNTIL I REACHED UP TO CHANGE TO GND CTL FREQ AND FOUND TO MY HORROR THAT WE WERE STILL ON THE APCH FREQ. I IMMEDIATELY SWITCHED TO TWR AND CONFESSED MY GRIEVOUS ERROR. WE WERE VERY LUCKY THAT WE WERE THE ONLY ACFT IN THE PATTERN AT THE TIME (A VERY UNUSUAL SIT AT SJC). THE LAST COM WAS WITH BAY APCH BEFORE REACHING MOFFETT. BAY DID NOT HAND US OFF TO THE TWR. WE SHOULD HAVE CAUGHT THIS. FACTORS WHICH CONTRIBUTED TO THIS SIT INCLUDE THE FOLLOWING: 1) WE FREQUENT SJC ON A DAILY BASIS AND THEREFORE WERE COMPLACENT. 2) THIS WAS THE 4TH EARLY WAKE-UP THIS WK AND WE WERE BOTH A LITTLE WEARY. 3) EVEN THOUGH I TRY TO RUN A TIGHT AND DISCIPLINED COCKPIT -- BY THE BOOK -- THIS MORNING I WAS ENJOYING THE SIGHTS AND DID NOT KEEP MY MIND IN THE COCKPIT. REPETITIOUS FLTS SUCH AS THIS ONE CAN BE FINE TUNED TO RUN VERY SMOOTHLY, HOWEVER, WE MUST DISCIPLINE OURSELVES TO NOT ALLOW OUR ATTN TO BE DIVERTED BECAUSE WE HAVE DONE IT SO MANY TIMES.

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.