Falcon 900EX flight crew reported receiving an RA on approach to apc when ATC gave them a turn clear...

Attributes
ACN	1270254
Time
Date	201506
Local Time Of Day	0601-1200
Place
Locale Reference	APC.Airport
State Reference	CA
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Make Model Name	Falcon 900
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Vectors
Aircraft 2
Make Model Name	Small Aircraft
Person 1
Function	Pilot Flying Captain
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict

Narrative:

The event occurred while being vectored onto VOR runway 6 approach into apc. We were at 4;000 feet and were told to turn left to join approach course. The TCAS system then gave us a resolution advisory to descend immediately after reading back our instructions. The autopilot was disengaged and we descended following our vsi. The TCAS system then gave us another resolution advisory to climb while we were in the descent. The resolution advisory was followed exactly how we are trained. Clear of conflict was announced and we saw the small cessna pass below us off our left wing. If we would have taken the turn we would have been pointed directly at the traffic that caused our resolution advisory.there needs to be better separation between VFR and IFR traffic in this area.

Original NASA ASRS Text

Title: Falcon 900EX flight crew reported receiving an RA on approach to APC when ATC gave them a turn clearance; which they felt could have resulted in a collision had it been followed.

Narrative: The event occurred while being vectored onto VOR RWY 6 approach into APC. We were at 4;000 feet and were told to turn left to join approach course. The TCAS system then gave us a Resolution Advisory to DESCEND immediately after reading back our instructions. The autopilot was disengaged and we descended following our VSI. The TCAS system then gave us another Resolution Advisory to CLIMB while we were in the descent. The Resolution Advisory was followed exactly how we are trained. CLEAR OF CONFLICT was announced and we saw the small Cessna pass below us off our left wing. If we would have taken the turn we would have been pointed directly at the traffic that caused our Resolution Advisory.There needs to be better separation between VFR and IFR traffic in this area.

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.

Falcon 900EX flight crew reported receiving an RA on approach to apc when ATC gave them a turn clearance; which they felt could have resulted in a collision had it been followed.