A pilot flying a navion unfamiliar with prc has an near midair collision with a C172 on a VOR approa...

Attributes
ACN	461882
Time
Date	200001
Day	Fri
Local Time Of Day	0601 To 1200
Place
State Reference	AZ
Altitude	agl single value : 6500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : prc.tower
Operator	general aviation : personal
Make Model Name	Navion
Operating Under FAR Part	Part 91
Flight Phase	descent other
Route In Use	approach : traffic pattern arrival : vfr
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tower : prc.tower
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Route In Use	approach : instrument non precision
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	pilot : private
Experience	controller time certified in position2 : 3 flight time total : 150
ASRS Report	461882
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne critical conflict : nmac non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance none taken : detected after the fact
Miss Distance	horizontal : 20 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Aircraft X was on a VOR approach practice inbound. Aircraft Y inbound 15 mi from west. It was discovered that aircraft X was passed by aircraft Y right to left by 20 ft over drk VOR. Tower was first informed of this after aircraft X landed. Aircraft Y never saw #1 and was unfamiliar with airport. Aircraft Y was first instructed right traffic runway 21R to report a 2 mi right 45 degree to the downwind, and was first observed on a left base to runway 21L, nearly missing aircraft Z, another aircraft on the left downwind.

Original NASA ASRS Text

Title: A PLT FLYING A NAVION UNFAMILIAR WITH PRC HAS AN NMAC WITH A C172 ON A VOR APCH.

Narrative: ACFT X WAS ON A VOR APCH PRACTICE INBOUND. ACFT Y INBOUND 15 MI FROM W. IT WAS DISCOVERED THAT ACFT X WAS PASSED BY ACFT Y R TO L BY 20 FT OVER DRK VOR. TWR WAS FIRST INFORMED OF THIS AFTER ACFT X LANDED. ACFT Y NEVER SAW #1 AND WAS UNFAMILIAR WITH ARPT. ACFT Y WAS FIRST INSTRUCTED R TFC RWY 21R TO RPT A 2 MI R 45 DEG TO THE DOWNWIND, AND WAS FIRST OBSERVED ON A L BASE TO RWY 21L, NEARLY MISSING ACFT Z, ANOTHER ACFT ON THE L DOWNWIND.

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.

A pilot flying a navion unfamiliar with prc has an near midair collision with a C172 on a VOR approach.