HS25, on VOR approach to apc, initiated evasive maneuver due to an opposite direction climbing PA28.

Attributes
ACN	567571
Time
Date	200211
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : apc.airport
State Reference	CA
Altitude	agl single value : 800
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tower : apc.tower
Operator	general aviation : corporate
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : apc.tower
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Person 1
Affiliation	other
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 3000 flight time type : 500
ASRS Report	567571
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 300 vertical : 100
Supplementary
Problem Areas	Airspace Structure ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On final descent to runway 6 at apc, after being cleared for the VOR runway 6 approach, and as we were inside the VOR, I noticed a cherokee at our 10:30 - 11 O'clock position on a collision flight path. As our hawker was already in an established descent, and as the cherokee was climbing, I initiated a rapidly descending r-hand turn to avoid the oncoming traffic. After noticing our aircraft, the cherokee initiated a climbing r-hand turn. After both evasive maneuvers had been done, our separation resulted in approximately 100 ft vertical, with 300 ft horizontal. At the time, we had not received TA's regarding this traffic from the tower. We did receive advisories regarding a twin cessna that was also reported to be over the VOR and inbound to apc. As the twin cessna's proximity to our aircraft was also undesirable, it was fortunate, because the twin cessna position revealed the cherokee. As well, we had TCASII information from the twin cessna, but not the cherokee.

Original NASA ASRS Text

Title: HS25, ON VOR APCH TO APC, INITIATED EVASIVE MANEUVER DUE TO AN OPPOSITE DIRECTION CLBING PA28.

Narrative: ON FINAL DSCNT TO RWY 6 AT APC, AFTER BEING CLRED FOR THE VOR RWY 6 APCH, AND AS WE WERE INSIDE THE VOR, I NOTICED A CHEROKEE AT OUR 10:30 - 11 O'CLOCK POS ON A COLLISION FLT PATH. AS OUR HAWKER WAS ALREADY IN AN ESTABLISHED DSCNT, AND AS THE CHEROKEE WAS CLBING, I INITIATED A RAPIDLY DSNDING R-HAND TURN TO AVOID THE ONCOMING TFC. AFTER NOTICING OUR ACFT, THE CHEROKEE INITIATED A CLBING R-HAND TURN. AFTER BOTH EVASIVE MANEUVERS HAD BEEN DONE, OUR SEPARATION RESULTED IN APPROX 100 FT VERT, WITH 300 FT HORIZ. AT THE TIME, WE HAD NOT RECEIVED TA'S REGARDING THIS TFC FROM THE TWR. WE DID RECEIVE ADVISORIES REGARDING A TWIN CESSNA THAT WAS ALSO RPTED TO BE OVER THE VOR AND INBOUND TO APC. AS THE TWIN CESSNA'S PROX TO OUR ACFT WAS ALSO UNDESIRABLE, IT WAS FORTUNATE, BECAUSE THE TWIN CESSNA POS REVEALED THE CHEROKEE. AS WELL, WE HAD TCASII INFO FROM THE TWIN CESSNA, BUT NOT THE CHEROKEE.

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.