Narrative:

Aircraft with call sign ending in XXX called lhd tower (lake hood tower; a VFR tower located in anc tower) from the north inbound with information (current ATIS). Aircraft was told to report a point. Aircraft reported said point and was cleared to land. I became distraction and did not observe aircraft touchdown. I then scanned the area; many parts of which are not in sight from the tower; and attempted one call to the aircraft. I then informed the controller in charge that I did not see the aircraft land and clear. This is a common occurrence at lhd due to many obstructions from the tower. It happens daily. I believe all aircraft should always give a 'clear' transmission and that ATC should not have to rely on other reports to ensure an aircraft's clearance.

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Original NASA ASRS Text

Title: ANC-LHD CTLR EXPRESSED CONCERN REGARDING LIMITED TWR VISIBILITY WITH LHD OPS AND LACK OF PROCS FOR TWR NOTIFICATION OF LNDG; CLR OF RWY.

Narrative: ACFT WITH CALL SIGN ENDING IN XXX CALLED LHD TWR (LAKE HOOD TWR; A VFR TWR LOCATED IN ANC TWR) FROM THE N INBOUND WITH INFO (CURRENT ATIS). ACFT WAS TOLD TO RPT A POINT. ACFT RPTED SAID POINT AND WAS CLRED TO LAND. I BECAME DISTR AND DID NOT OBSERVE ACFT TOUCHDOWN. I THEN SCANNED THE AREA; MANY PARTS OF WHICH ARE NOT IN SIGHT FROM THE TWR; AND ATTEMPTED ONE CALL TO THE ACFT. I THEN INFORMED THE CIC THAT I DID NOT SEE THE ACFT LAND AND CLR. THIS IS A COMMON OCCURRENCE AT LHD DUE TO MANY OBSTRUCTIONS FROM THE TWR. IT HAPPENS DAILY. I BELIEVE ALL ACFT SHOULD ALWAYS GIVE A 'CLR' XMISSION AND THAT ATC SHOULD NOT HAVE TO RELY ON OTHER RPTS TO ENSURE AN ACFT'S CLRNC.

Data retrieved from NASA's ASRS site as of January 2009 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.