Narrative:

After departure yng for hya. We were arriving at hya on a 2 1/2 mi final after boston handed us off to hya tower and we were clear to land, when suddenly TCASII went off and told us to climb, followed by a red alert on screen. We just started to climb when we spotted a C182 (guess) it was just 100 ft away and 100 ft below. We called the tower -- there was no response. After landing and turning on the taxiway, the tower told us to taxi to south ramp. While taxiing, we noticed on the taxiway ahead of us that there were 2 airplanes on a taxiway near the active runway with 1 airplane tail on the runway while the tower was clearing another commuter to land. (Note: when we had an near midair collision, aircraft behind us also reported he had an near midair collision with the same plane and there was no response from tower.) the tower controller was working ground and tower at the same time. It was a very good VFR day and the traffic we had on TCASII was heavy and more than 1 controller could handle.

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Original NASA ASRS Text

Title: A HAWKER 800 CPR FLC HAS AN NMAC WITH A C182 ON A 2 1/2 NM FINAL AND NOTED THAT THE CTLR WAS NOT ABLE TO MAINTAIN SEPARATION BTWN ACFT IN THE AIR AND ON THE GND AT HYA, MA.

Narrative: AFTER DEP YNG FOR HYA. WE WERE ARRIVING AT HYA ON A 2 1/2 MI FINAL AFTER BOSTON HANDED US OFF TO HYA TWR AND WE WERE CLR TO LAND, WHEN SUDDENLY TCASII WENT OFF AND TOLD US TO CLB, FOLLOWED BY A RED ALERT ON SCREEN. WE JUST STARTED TO CLB WHEN WE SPOTTED A C182 (GUESS) IT WAS JUST 100 FT AWAY AND 100 FT BELOW. WE CALLED THE TWR -- THERE WAS NO RESPONSE. AFTER LNDG AND TURNING ON THE TXWY, THE TWR TOLD US TO TAXI TO S RAMP. WHILE TAXIING, WE NOTICED ON THE TXWY AHEAD OF US THAT THERE WERE 2 AIRPLANES ON A TXWY NEAR THE ACTIVE RWY WITH 1 AIRPLANE TAIL ON THE RWY WHILE THE TWR WAS CLRING ANOTHER COMMUTER TO LAND. (NOTE: WHEN WE HAD AN NMAC, ACFT BEHIND US ALSO RPTED HE HAD AN NMAC WITH THE SAME PLANE AND THERE WAS NO RESPONSE FROM TWR.) THE TWR CTLR WAS WORKING GND AND TWR AT THE SAME TIME. IT WAS A VERY GOOD VFR DAY AND THE TFC WE HAD ON TCASII WAS HVY AND MORE THAN 1 CTLR COULD HANDLE.

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.