Close proximity 2 commuter small transport's north of sbp.

Attributes
ACN	119252
Time
Date	198908
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sbp
State Reference	CA
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Small Transport
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 10000
ASRS Report	119252
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 2000
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Commuter X flight (smf to sbp) was in a VFR descent for a visual approach to sbp airport runway 29. While in a VFR descent with navigation lights on, landing lights and recognition lights on, first officer spotted light twin aircraft at about 1 mi in a climb. An immediate left climbing evasive maneuver was performed by me in order to avoid near head-on collision. Even after maneuver, I was not sure both aircraft would clear. I believe other aircraft to be a commuter Y twin flying from sbp to salinas. Other aircraft took no evasive action. ZLA did not call out traffic to our flight and may not have seen him because of mountainous terrain. After I told ZLA about it he said he saw a mode C at 6800' on that other aircraft, so he was squawking IFF, at least after he passed us. My windows need cleaning. I also recommend approach and departure corridors assigned by tower/ATC to avoid midairs around sbp. This has been reported to company X chief pilot.

Original NASA ASRS Text

Title: CLOSE PROX 2 COMMUTER SMT'S NORTH OF SBP.

Narrative: COMMUTER X FLT (SMF TO SBP) WAS IN A VFR DSCNT FOR A VISUAL APCH TO SBP ARPT RWY 29. WHILE IN A VFR DSCNT WITH NAV LIGHTS ON, LNDG LIGHTS AND RECOGNITION LIGHTS ON, F/O SPOTTED LIGHT TWIN ACFT AT ABOUT 1 MI IN A CLIMB. AN IMMEDIATE LEFT CLIMBING EVASIVE MANEUVER WAS PERFORMED BY ME IN ORDER TO AVOID NEAR HEAD-ON COLLISION. EVEN AFTER MANEUVER, I WAS NOT SURE BOTH ACFT WOULD CLEAR. I BELIEVE OTHER ACFT TO BE A COMMUTER Y TWIN FLYING FROM SBP TO SALINAS. OTHER ACFT TOOK NO EVASIVE ACTION. ZLA DID NOT CALL OUT TFC TO OUR FLT AND MAY NOT HAVE SEEN HIM BECAUSE OF MOUNTAINOUS TERRAIN. AFTER I TOLD ZLA ABOUT IT HE SAID HE SAW A MODE C AT 6800' ON THAT OTHER ACFT, SO HE WAS SQUAWKING IFF, AT LEAST AFTER HE PASSED US. MY WINDOWS NEED CLEANING. I ALSO RECOMMEND APCH AND DEP CORRIDORS ASSIGNED BY TWR/ATC TO AVOID MIDAIRS AROUND SBP. THIS HAS BEEN REPORTED TO COMPANY X CHIEF PLT.

Data retrieved from NASA's ASRS site as of August 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.