Near midair collision.

Attributes
ACN	146748
Time
Date	199005
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sts
State Reference	CA
Altitude	msl bound lower : 3000 msl bound upper : 3300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa tower : sts
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4500 flight time type : 2100
ASRS Report	146748
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac non adherence : far non adherence : required legal separation other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 300
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Aircraft attitude: 5 degree pitch, 200 KTS, 1000 FPM climb. Possible factors: right windshield post blocked pilot's view, light colored aircraft against high overcast, crew facing sun and late handoff to center by tower (?). Flight departed sts on INS flight play, following published SID. Crew had just been instructed by tower to switch to center. Prior to initial callup, captain (PNF) spotted traffic in approximately 1-2 O'clock position, 300' above. First officer initiated left (climbing) turn to avoid traffic (30 degree bank). First officer maintained visibility contact throughout maneuver. Crew had been on duty 6 hours, fourth day of 5 days on duty.

Original NASA ASRS Text

Title: NMAC.

Narrative: ACFT ATTITUDE: 5 DEG PITCH, 200 KTS, 1000 FPM CLB. POSSIBLE FACTORS: RIGHT WINDSHIELD POST BLOCKED PLT'S VIEW, LIGHT COLORED ACFT AGAINST HIGH OVCST, CREW FACING SUN AND LATE HDOF TO CENTER BY TWR (?). FLT DEPARTED STS ON INS FLT PLAY, FOLLOWING PUBLISHED SID. CREW HAD JUST BEEN INSTRUCTED BY TWR TO SWITCH TO CENTER. PRIOR TO INITIAL CALLUP, CAPT (PNF) SPOTTED TFC IN APPROX 1-2 O'CLOCK POS, 300' ABOVE. F/O INITIATED LEFT (CLBING) TURN TO AVOID TFC (30 DEG BANK). F/O MAINTAINED VIS CONTACT THROUGHOUT MANEUVER. CREW HAD BEEN ON DUTY 6 HRS, FOURTH DAY OF 5 DAYS ON DUTY.

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.