Narrative:

While flying a practice ILS at trenton airport to runway 6, I was told by tower to report crossing the delaware river. After reporting overhead the river, tower told me fly overhead the airport and to the left of centerline of runway 6. I followed those instructions immediately and read back 'breaking off the localizer and will remain well west of the centerline of runway 6'. Tower acknowledged my readback and then cleared an small transport into position and hold on runway 24. The small transport was advised by tower that I was on final but would be clear of the centerline. The small transport was instructed to maintain runway heading after takeoff and to comply with noise abatement procedures. The small transport pilot acknowledged the instructions and started his takeoff roll. At this point I was within the perimeter of the airport and about 2000 ft left of the centerline of runway 6. After takeoff the small transport made a steep right turn at about 100 ft and flew almost directly beneath my aircraft. I notified tower that the small transport is in a right turn and I made a right bank in order to keep the small transport in sight. We had about 400 ft of vertical separation. The small transport pilot claimed that my aircraft was directly in front of him and that he was taking evasive action. Tower's response was that the small transport did not follow instructions and that there was no conflict with my aircraft. The small transport pilot became very argumentative and never did follow tower's instructions. This was not a near miss incident in my estimation but it very easily could have been. Happily I had leveled off about 200 ft above circling mins so we had adequate vertical separation. Trenton tower was 'heads up' during this experience and deserves to be commended. The small transport pilot was clearly in the wrong and failed to comply with an ATC clearance that he had acknowledged receiving and failed to question.

Related reports:

Google
 

Original NASA ASRS Text

Title: SMA ON PRACTICE INST APCH BREAKS OFF AS INSTRUCTED TO PARALLEL RWY TO THE L. ACFT CLRED TKOF OPPOSITE DIRECTION TO MAINTAIN RWY HDG BUT TURNS AT 100 FT. NMAC.

Narrative: WHILE FLYING A PRACTICE ILS AT TRENTON ARPT TO RWY 6, I WAS TOLD BY TWR TO RPT XING THE DELAWARE RIVER. AFTER RPTING OVERHEAD THE RIVER, TWR TOLD ME FLY OVERHEAD THE ARPT AND TO THE L OF CENTERLINE OF RWY 6. I FOLLOWED THOSE INSTRUCTIONS IMMEDIATELY AND READ BACK 'BREAKING OFF THE LOC AND WILL REMAIN WELL W OF THE CENTERLINE OF RWY 6'. TWR ACKNOWLEDGED MY READBACK AND THEN CLRED AN SMT INTO POS AND HOLD ON RWY 24. THE SMT WAS ADVISED BY TWR THAT I WAS ON FINAL BUT WOULD BE CLR OF THE CENTERLINE. THE SMT WAS INSTRUCTED TO MAINTAIN RWY HDG AFTER TKOF AND TO COMPLY WITH NOISE ABATEMENT PROCS. THE SMT PLT ACKNOWLEDGED THE INSTRUCTIONS AND STARTED HIS TKOF ROLL. AT THIS POINT I WAS WITHIN THE PERIMETER OF THE ARPT AND ABOUT 2000 FT L OF THE CENTERLINE OF RWY 6. AFTER TKOF THE SMT MADE A STEEP R TURN AT ABOUT 100 FT AND FLEW ALMOST DIRECTLY BENEATH MY ACFT. I NOTIFIED TWR THAT THE SMT IS IN A R TURN AND I MADE A R BANK IN ORDER TO KEEP THE SMT IN SIGHT. WE HAD ABOUT 400 FT OF VERT SEPARATION. THE SMT PLT CLAIMED THAT MY ACFT WAS DIRECTLY IN FRONT OF HIM AND THAT HE WAS TAKING EVASIVE ACTION. TWR'S RESPONSE WAS THAT THE SMT DID NOT FOLLOW INSTRUCTIONS AND THAT THERE WAS NO CONFLICT WITH MY ACFT. THE SMT PLT BECAME VERY ARGUMENTATIVE AND NEVER DID FOLLOW TWR'S INSTRUCTIONS. THIS WAS NOT A NEAR MISS INCIDENT IN MY ESTIMATION BUT IT VERY EASILY COULD HAVE BEEN. HAPPILY I HAD LEVELED OFF ABOUT 200 FT ABOVE CIRCLING MINS SO WE HAD ADEQUATE VERT SEPARATION. TRENTON TWR WAS 'HEADS UP' DURING THIS EXPERIENCE AND DESERVES TO BE COMMENDED. THE SMT PLT WAS CLRLY IN THE WRONG AND FAILED TO COMPLY WITH AN ATC CLRNC THAT HE HAD ACKNOWLEDGED RECEIVING AND FAILED TO QUESTION.

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.