Near midair collision between air carrier a and uga B.

Attributes
ACN	276143
Time
Date	199407
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : smf
State Reference	CA
Altitude	msl bound lower : 3500 msl bound upper : 3500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mcc
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 14000 flight time type : 12000
ASRS Report	276143
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac non adherence : far non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

On climb out from smf climbing through 3000 ft MSL notices TCASII traffic on convergence course 1000 ft above us. Got a TA followed by an RA and visual sighting complied with RA and took evasive action consisting of 30 degree left aob and a descent. After our evasive action light aircraft passed by our right side 400 ft vertical and 1/4 NM horizontally. At no time prior to the RA did departure control issue a TA. Our first indication of a problem was the TCASII advisory. TCASII may very well have saved a B727 and 150 plus people! Supplemental information from acn 276160: on climb out from smf climbing through 3000 ft MSL noticed TCASII traffic on converging course 1000 ft above us. Got TA followed by RA and visual sighting complied with RA and took evasive action consisting of 30 degrees left aob and a descent. After evasive action light aircraft passed by our right side 400 ft vertical and 1/4 NM horizontal.

Original NASA ASRS Text

Title: NMAC BTWN ACR A AND UGA B.

Narrative: ON CLBOUT FROM SMF CLBING THROUGH 3000 FT MSL NOTICES TCASII TFC ON CONVERGENCE COURSE 1000 FT ABOVE US. GOT A TA FOLLOWED BY AN RA AND VISUAL SIGHTING COMPLIED WITH RA AND TOOK EVASIVE ACTION CONSISTING OF 30 DEG L AOB AND A DSCNT. AFTER OUR EVASIVE ACTION LIGHT ACFT PASSED BY OUR R SIDE 400 FT VERT AND 1/4 NM HORIZONTALLY. AT NO TIME PRIOR TO THE RA DID DEP CTL ISSUE A TA. OUR FIRST INDICATION OF A PROB WAS THE TCASII ADVISORY. TCASII MAY VERY WELL HAVE SAVED A B727 AND 150 PLUS PEOPLE! SUPPLEMENTAL INFO FROM ACN 276160: ON CLBOUT FROM SMF CLBING THROUGH 3000 FT MSL NOTICED TCASII TFC ON CONVERGING COURSE 1000 FT ABOVE US. GOT TA FOLLOWED BY RA AND VISUAL SIGHTING COMPLIED WITH RA AND TOOK EVASIVE ACTION CONSISTING OF 30 DEGS L AOB AND A DSCNT. AFTER EVASIVE ACTION LIGHT ACFT PASSED BY OUR R SIDE 400 FT VERT AND 1/4 NM HORIZ.

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.