Narrative:

When we were flying into augusta today we picked up the weather and it was reporting calm winds; 10 statute miles visibility; clear sky's; with a temperature of 17 and a dew point of 8. Because we were coming in from the south we decided to do the visual to runway 35. Once we had the field in site we canceled IFR with portland who told us that there was no traffic observed between the airport and us. As we were coming into land we made our position reports on the aug CTAF for 10; 8; 5; and 3 mile finals. When we got to inside of a 5 mile final we heard somebody say that they were doing a touch and go for runway 17 in augusta. The radio was very congested due to multiple airports using the same frequency and we thought we heard wrong since there was another airplane at augusta waiting to depart runway 35 as well. Still; we asked if there was somebody taking off of 17 in augusta and got no response. The TCAS didn't show anything or give us any aural alarms and we didn't have anybody in sight; so we kept going; figuring we misheard. When we were just inside a 3 mile final both my first officer and I saw the small aircraft in front of us starting a turn to the left. Since he was turning left I did the same in order to avoid a mid air collision. We were within 100-200 ft of [the] other aircraft and had to do evasive maneuvering. Given how close to the ground we were and the fact that he was making left traffic for 17; I elected to land the plane; since we never went below the standard approach criteria; instead of going missed approach. If we had executed the missed approach I feared we would have had the same incident happen again. Once we landed my first officer asked the aircraft that was on the ground waiting to take off if he had heard all of our radio calls and he said that he had. After we parked the small aircraft landed and taxied up to the flight school just around the corner from us.

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Original NASA ASRS Text

Title: Turboprop Captain on short final for Runway 35 at AUG reports NMAC with a small aircraft departing Runway 17. Reporters aircraft was straight in and using CTAF procedures and the small aircraft was a touch and go.

Narrative: When we were flying into Augusta today we picked up the weather and it was reporting calm winds; 10 statute miles visibility; clear sky's; with a temperature of 17 and a dew point of 8. Because we were coming in from the south we decided to do the visual to Runway 35. Once we had the field in site we canceled IFR with Portland who told us that there was no traffic observed between the airport and us. As we were coming into land we made our position reports on the AUG CTAF for 10; 8; 5; and 3 mile finals. When we got to inside of a 5 mile final we heard somebody say that they were doing a touch and go for Runway 17 in Augusta. The radio was very congested due to multiple airports using the same frequency and we thought we heard wrong since there was another airplane at Augusta waiting to depart Runway 35 as well. Still; we asked if there was somebody taking off of 17 in Augusta and got no response. The TCAS didn't show anything or give us any aural alarms and we didn't have anybody in sight; so we kept going; figuring we misheard. When we were just inside a 3 mile final both my First Officer and I saw the small aircraft in front of us starting a turn to the left. Since he was turning left I did the same in order to avoid a mid air collision. We were within 100-200 FT of [the] other aircraft and had to do evasive maneuvering. Given how close to the ground we were and the fact that he was making left traffic for 17; I elected to land the plane; since we never went below the standard approach criteria; instead of going missed approach. If we had executed the missed approach I feared we would have had the same incident happen again. Once we landed my First Officer asked the aircraft that was on the ground waiting to take off if he had heard all of our radio calls and he said that he had. After we parked the small aircraft landed and taxied up to the flight school just around the corner from us.

Data retrieved from NASA's ASRS site as of April 2012 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.