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A320 crew and a C172 had an near midair collision when the A320 crew accepted responsibility for visual separation with the C172 departing sfo.
| Attributes | |
| ACN | 601765 |
| Time | |
| Date | 200312 |
| Day | Tue |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl single value : 1800 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : nct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude climbout : initial |
| Route In Use | departure sid : offshore |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : nct.tracon |
| Operator | Other |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure oversight : pic |
| Qualification | controller : radar |
| ASRS Report | 601765 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : nmac non adherence : company policies non adherence : far non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Miss Distance | horizontal : 1500 vertical : 200 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
C172 VFR operating in sfo 'B' airspace 2 mi west of runway 28L/right at 2000 ft/1500 ft. Tower was in communication with aircraft. A320 departed sfo runway 28 at offshore SID. On initial contact traffic was issued. Air carrier responded 'in sight.' air carrier was instructed to maintain visual separation. Air carrier then descended from 1900 ft to approximately 1500 ft MSL (approximately 500-1000 ft AGL) due to a TCASII RA.
Original NASA ASRS Text
Title: A320 CREW AND A C172 HAD AN NMAC WHEN THE A320 CREW ACCEPTED RESPONSIBILITY FOR VISUAL SEPARATION WITH THE C172 DEPARTING SFO.
Narrative: C172 VFR OPERATING IN SFO 'B' AIRSPACE 2 MI W OF RWY 28L/R AT 2000 FT/1500 FT. TWR WAS IN COM WITH ACFT. A320 DEPARTED SFO RWY 28 AT OFFSHORE SID. ON INITIAL CONTACT TFC WAS ISSUED. ACR RESPONDED 'IN SIGHT.' ACR WAS INSTRUCTED TO MAINTAIN VISUAL SEPARATION. ACR THEN DSNDED FROM 1900 FT TO APPROX 1500 FT MSL (APPROX 500-1000 FT AGL) DUE TO A TCASII RA.
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.