Medium large transport on short final observed a VFR turboprop on final for a cross runway which was not giving way to the medium large transport even though it appeared on a collision course. Tower local controller had issued advisory for the crossing traffic.

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Attributes
ACN	515309
Time
Date	200106
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cyvr.airport
State Reference	FO
Altitude	agl single value : 1000
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cyvr.tower
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : cyhm.tower
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach
Route In Use	approach : straight in
Person 1
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : atp pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 3000 flight time type : 850
ASRS Report	515309
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued advisory none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 3000 vertical : 200
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

On final approach for runway 8L at cyvr, we experienced an near midair collision with another aircraft on approach for runway 12. We had been cleared for a visual approach to runway 8L and were proceeding at approach speed in the landing confign. At approximately 1000 ft AGL, tower issued a traffic call for VFR traffic landing runway 12 indicating that the other aircraft 'will maintain visual separation.' the captain, acting as the PNF from the left seat, immediately saw the traffic and pointed it out to me. We agreed that the other aircraft, a 2 engine, high wing turboprop (approximately 12 passenger) could become a conflict. We elected to continue based on the tower controller's assurance that the other pilot would maintain visual separation. The other aircraft was apparently on another tower frequency. We did not hear any xmissions between that aircraft and the tower. By the time we realized that the other pilot would take no further action to ensure adequate separation, a go around would have reduced separation. The other aircraft passed 200-300 ft above us and less than 1/2 NM behind us. We landed without further incident. Upon landing, the captain phoned the tower controller to discuss the incident.

Original NASA ASRS Text

Title: MLG ON SHORT FINAL OBSERVED A VFR TURBOPROP ON FINAL FOR A CROSS RWY WHICH WAS NOT GIVING WAY TO THE MLG EVEN THOUGH IT APPEARED ON A COLLISION COURSE. TWR LCL CTLR HAD ISSUED ADVISORY FOR THE XING TFC.

Narrative: ON FINAL APCH FOR RWY 8L AT CYVR, WE EXPERIENCED AN NMAC WITH ANOTHER ACFT ON APCH FOR RWY 12. WE HAD BEEN CLRED FOR A VISUAL APCH TO RWY 8L AND WERE PROCEEDING AT APCH SPD IN THE LNDG CONFIGN. AT APPROX 1000 FT AGL, TWR ISSUED A TFC CALL FOR VFR TFC LNDG RWY 12 INDICATING THAT THE OTHER ACFT 'WILL MAINTAIN VISUAL SEPARATION.' THE CAPT, ACTING AS THE PNF FROM THE L SEAT, IMMEDIATELY SAW THE TFC AND POINTED IT OUT TO ME. WE AGREED THAT THE OTHER ACFT, A 2 ENG, HIGH WING TURBOPROP (APPROX 12 PAX) COULD BECOME A CONFLICT. WE ELECTED TO CONTINUE BASED ON THE TWR CTLR'S ASSURANCE THAT THE OTHER PLT WOULD MAINTAIN VISUAL SEPARATION. THE OTHER ACFT WAS APPARENTLY ON ANOTHER TWR FREQ. WE DID NOT HEAR ANY XMISSIONS BTWN THAT ACFT AND THE TWR. BY THE TIME WE REALIZED THAT THE OTHER PLT WOULD TAKE NO FURTHER ACTION TO ENSURE ADEQUATE SEPARATION, A GAR WOULD HAVE REDUCED SEPARATION. THE OTHER ACFT PASSED 200-300 FT ABOVE US AND LESS THAN 1/2 NM BEHIND US. WE LANDED WITHOUT FURTHER INCIDENT. UPON LNDG, THE CAPT PHONED THE TWR CTLR TO DISCUSS THE INCIDENT.

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.