Near midair collision.

Attributes
ACN	287816
Time
Date	199411
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bna
State Reference	TN
Altitude	msl bound lower : 1600 msl bound upper : 1600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bna tracon : yhz
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Aircraft 2
Make Model Name	Champion Citabria
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 215 flight time total : 9300 flight time type : 7800
ASRS Report	287816
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 200 vertical : 20
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

While patrolling north of bna the tower continued to give me TA's after I had left the air traffic area. A blue/white citabria which was doing traffic watch passed off my right wing. I didn't see the citabria until he was 5 seconds away. I don't believe the other pilot saw me since he/she did not change his flight path or rock their wings. As usual blame can be put on both sides. I should have seen the other aircraft earlier, but I was patrolling in a congested area (lots of ground clutter) and was not watching as much for traffic as I should have. There is also the tendency to relax the traffic scan since I was getting radar advisories. But I also think ATC relaxed since I was out of the air traffic area. I expected the tower to either terminate service or handoff to approach when I left the air traffic area. This usually occurs, but this time I think they may have forgotten about me. The traffic level was light to moderate at bna, they were not in an air carrier airlines rush.

Original NASA ASRS Text

Title: NMAC.

Narrative: WHILE PATROLLING N OF BNA THE TWR CONTINUED TO GIVE ME TA'S AFTER I HAD LEFT THE ATA. A BLUE/WHITE CITABRIA WHICH WAS DOING TFC WATCH PASSED OFF MY R WING. I DIDN'T SEE THE CITABRIA UNTIL HE WAS 5 SECONDS AWAY. I DON'T BELIEVE THE OTHER PLT SAW ME SINCE HE/SHE DID NOT CHANGE HIS FLT PATH OR ROCK THEIR WINGS. AS USUAL BLAME CAN BE PUT ON BOTH SIDES. I SHOULD HAVE SEEN THE OTHER ACFT EARLIER, BUT I WAS PATROLLING IN A CONGESTED AREA (LOTS OF GND CLUTTER) AND WAS NOT WATCHING AS MUCH FOR TFC AS I SHOULD HAVE. THERE IS ALSO THE TENDENCY TO RELAX THE TFC SCAN SINCE I WAS GETTING RADAR ADVISORIES. BUT I ALSO THINK ATC RELAXED SINCE I WAS OUT OF THE ATA. I EXPECTED THE TWR TO EITHER TERMINATE SVC OR HDOF TO APCH WHEN I LEFT THE ATA. THIS USUALLY OCCURS, BUT THIS TIME I THINK THEY MAY HAVE FORGOTTEN ABOUT ME. THE TFC LEVEL WAS LIGHT TO MODERATE AT BNA, THEY WERE NOT IN AN ACR AIRLINES RUSH.

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.