Narrative:

Aircraft X was taxied into position to hold at taxiway J on runway 33. Aircraft Y was cleared to land on runway 33. Aircraft Y and aircraft Z (helicopter also inbound) required attention on left base and then aircraft Y and aircraft zz did not see each other in pattern. Aircraft Y executed a go around on 1/4 mi final because aircraft X was still in position on runway. (I forgot about aircraft X.)

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Original NASA ASRS Text

Title: CTLR AT BGR TWR FORGETS TFC IN POS WITH TFC ON FINAL BECAUSE OF DISTR AROUND THE ARPT.

Narrative: ACFT X WAS TAXIED INTO POS TO HOLD AT TXWY J ON RWY 33. ACFT Y WAS CLRED TO LAND ON RWY 33. ACFT Y AND ACFT Z (HELI ALSO INBOUND) REQUIRED ATTN ON L BASE AND THEN ACFT Y AND ACFT ZZ DID NOT SEE EACH OTHER IN PATTERN. ACFT Y EXECUTED A GAR ON 1/4 MI FINAL BECAUSE ACFT X WAS STILL IN POS ON RWY. (I FORGOT ABOUT ACFT X.)

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.