GA pilot reported an near midair collision event during final approach to sts airport after ATC deni...

Attributes
ACN	1749236
Time
Date	202007
Local Time Of Day	0601-1200
Place
Locale Reference	STS.Tower
State Reference	CA
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	Landing
Flight Plan	None
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 20 Flight Crew Total 3300 Flight Crew Type 3000
Events
Anomaly	ATC Issue All Types Conflict NMAC
Miss Distance	Horizontal 500 Vertical 50

Narrative:

I was in the traffic pattern being vectored to land by the sts tower and was on a base leg to runway 14. I was on right base about a mile form the final approach to runway 14 and was number two to land. As I was close to the runway and did not have the number one to land aircraft in view; I requested a 180 degree turn (to the right); but tower said 'negative;' proceed to land; you are number one. Upon turning from base to final; I spotted the other aircraft above and to my left less than 500 feet horizontally and about 50 feet vertically. The other aircraft saw me and made a sharp turn to the left. Thank goodness no contact was made between my aircraft and other one.

Original NASA ASRS Text

Title: GA pilot reported an NMAC event during final approach to STS airport after ATC denied a vector away from runway.

Narrative: I was in the traffic pattern being vectored to land by the STS tower and was on a base leg to Runway 14. I was on right base about a mile form the final approach to Runway 14 and was number two to land. As I was close to the runway and did not have the number one to land aircraft in view; I requested a 180 degree turn (to the right); but Tower said 'negative;' proceed to land; you are number one. Upon turning from base to final; I spotted the other aircraft above and to my left less than 500 feet horizontally and about 50 feet vertically. The other aircraft saw me and made a sharp turn to the left. Thank goodness no contact was made between my aircraft and other one.

Data retrieved from NASA's ASRS site 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.

GA pilot reported an near midair collision event during final approach to sts airport after ATC denied a vector away from runway.