Narrative:

I was vectored to a visual approach runway 12L at stl. Conditions were VMC and although dawn was just starting it was still dark enough that I was picking out the runway from the 2 parallel lines on the approach lighting systems. The approach and touchdown were normal but when rolling out I noticed that tower hadn't said anything about switching to ground or which taxiway to turnoff at. I asked the first officer to inquire about it. At this point approach control said we should contact tower for the information we both looked at each other an asked ourselves 'did we ever get clearance to land?' he thought we did but wasn't sure. I just wasn't sure. Tower didn't give any indication that anything was wrong and naturally I didn't want to press the issue. In this job flying at night into a lot of airports where approach control, tower and ground control is all the same person, therefore it didn't send off any alarms when we weren't turned over to tower on approach as it should have. I still don't know if approach cleared us to land or not its embarrassing enough to screw up and even more if you can't remember if you have or not I realize now that I'm going to have to key myself to ask approach controls in the future if they want me to switch to tower frequency when they clear me for the approach. I used to think about this at the OM but in this case the turn to final was inside the OM.

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Original NASA ASRS Text

Title: UNAUTHORIZED LNDG, LNDG WITHOUT CLRNC.

Narrative: I WAS VECTORED TO A VISUAL APCH RWY 12L AT STL. CONDITIONS WERE VMC AND ALTHOUGH DAWN WAS JUST STARTING IT WAS STILL DARK ENOUGH THAT I WAS PICKING OUT THE RWY FROM THE 2 PARALLEL LINES ON THE APCH LIGHTING SYSTEMS. THE APCH AND TOUCHDOWN WERE NORMAL BUT WHEN ROLLING OUT I NOTICED THAT TWR HADN'T SAID ANYTHING ABOUT SWITCHING TO GND OR WHICH TAXIWAY TO TURNOFF AT. I ASKED THE FO TO INQUIRE ABOUT IT. AT THIS POINT APCH CTL SAID WE SHOULD CONTACT TWR FOR THE INFO WE BOTH LOOKED AT EACH OTHER AN ASKED OURSELVES 'DID WE EVER GET CLRNC TO LAND?' HE THOUGHT WE DID BUT WASN'T SURE. I JUST WASN'T SURE. TWR DIDN'T GIVE ANY INDICATION THAT ANYTHING WAS WRONG AND NATURALLY I DIDN'T WANT TO PRESS THE ISSUE. IN THIS JOB FLYING AT NIGHT INTO A LOT OF ARPTS WHERE APCH CTL, TWR AND GND CTL IS ALL THE SAME PERSON, THEREFORE IT DIDN'T SEND OFF ANY ALARMS WHEN WE WEREN'T TURNED OVER TO TWR ON APCH AS IT SHOULD HAVE. I STILL DON'T KNOW IF APCH CLRED US TO LAND OR NOT ITS EMBARRASSING ENOUGH TO SCREW UP AND EVEN MORE IF YOU CAN'T REMEMBER IF YOU HAVE OR NOT I REALIZE NOW THAT I'M GOING TO HAVE TO KEY MYSELF TO ASK APCH CTLS IN THE FUTURE IF THEY WANT ME TO SWITCH TO TWR FREQ WHEN THEY CLR ME FOR THE APCH. I USED TO THINK ABOUT THIS AT THE OM BUT IN THIS CASE THE TURN TO FINAL WAS INSIDE THE OM.

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.