Small aircraft on test flight almost hit by bizjet coming from behind on approach.

Attributes
ACN	287324
Time
Date	199411
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sts
State Reference	CA
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sts
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach descent other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 3500 flight time type : 1900
ASRS Report	287324
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	other
Miss Distance	horizontal : 100 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Out of 10000 ft 23 mi southeast of sts after testing new turbo, called santa rosa (sts) tower for the ok to track localizer and GS to test autoplt. WX was severe clear. Sts said okay and asked for updates on position. I started down and called sts with reports every 3-5 mi. They informed me that 2 bizjets were inbound according to ZOA who handles all IFR traffic as there is no approach control. They were somewhere behind me but the tower and ZOA did not coordination carefully by either moving me off the localizer/GS or advising the bizjets to make some corrections to avoid the localizer which they did not need. The result was a bizjet almost eating my tail and having to break quickly to the west to avoid hitting me. This happened 5 mi from the airport -- long after oakland should have turned him over to the sts tower who I was in constant touch with. To quote the bizjet pilot -- 'that's the closest I've ever come to hitting somebody.' bad handling by controllers considering the elements that existed in an environment that has no approach control.

Original NASA ASRS Text

Title: SMA ON TEST FLT ALMOST HIT BY BIZJET COMING FROM BEHIND ON APCH.

Narrative: OUT OF 10000 FT 23 MI SE OF STS AFTER TESTING NEW TURBO, CALLED SANTA ROSA (STS) TWR FOR THE OK TO TRACK LOC AND GS TO TEST AUTOPLT. WX WAS SEVERE CLR. STS SAID OKAY AND ASKED FOR UPDATES ON POS. I STARTED DOWN AND CALLED STS WITH RPTS EVERY 3-5 MI. THEY INFORMED ME THAT 2 BIZJETS WERE INBOUND ACCORDING TO ZOA WHO HANDLES ALL IFR TFC AS THERE IS NO APCH CTL. THEY WERE SOMEWHERE BEHIND ME BUT THE TWR AND ZOA DID NOT COORD CAREFULLY BY EITHER MOVING ME OFF THE LOC/GS OR ADVISING THE BIZJETS TO MAKE SOME CORRECTIONS TO AVOID THE LOC WHICH THEY DID NOT NEED. THE RESULT WAS A BIZJET ALMOST EATING MY TAIL AND HAVING TO BREAK QUICKLY TO THE W TO AVOID HITTING ME. THIS HAPPENED 5 MI FROM THE ARPT -- LONG AFTER OAKLAND SHOULD HAVE TURNED HIM OVER TO THE STS TWR WHO I WAS IN CONSTANT TOUCH WITH. TO QUOTE THE BIZJET PLT -- 'THAT'S THE CLOSEST I'VE EVER COME TO HITTING SOMEBODY.' BAD HANDLING BY CTLRS CONSIDERING THE ELEMENTS THAT EXISTED IN AN ENVIRONMENT THAT HAS NO APCH CTL.

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.