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Air carrier X had near midair collision with small aircraft Y. See and avoid concept above sfo TCA. TCASII RA evasive action taken.
| Attributes | |
| ACN | 183794 |
| Time | |
| Date | 199107 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : oak |
| State Reference | CA |
| Altitude | msl bound lower : 8000 msl bound upper : 8500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak tracon : pvd |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Fixed Gear |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 26000 |
| ASRS Report | 183794 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Air carrier X after departure turned right to 030 degree contacted departure control. Clearance after takeoff turn right 030 degree climb to 23000. Departure stopped climb at 6000 ft for small aircraft traffic 12 O'clock position 6500 ft. After clear of traffic cleared 020 degree heading climb 23000. TCAS RA warning of traffic above. Leveled off at 8500 to avoid conflict. Departure control was questioned by me as to traffic conflict and TCAS resolution. Response by departure controller was that 'small aircraft Y traffic above our flight was too close'(?) then instructed to contact center. TCAS worked and possible conflict of closer proximity was avoided.
Original NASA ASRS Text
Title: ACR X HAD NMAC WITH SMA Y. SEE AND AVOID CONCEPT ABOVE SFO TCA. TCASII RA EVASIVE ACTION TAKEN.
Narrative: ACR X AFTER DEP TURNED R TO 030 DEG CONTACTED DEP CTL. CLRNC AFTER TKOF TURN R 030 DEG CLB TO 23000. DEP STOPPED CLB AT 6000 FT FOR SMA TFC 12 O'CLOCK POS 6500 FT. AFTER CLR OF TFC CLRED 020 DEG HDG CLB 23000. TCAS RA WARNING OF TFC ABOVE. LEVELED OFF AT 8500 TO AVOID CONFLICT. DEP CTL WAS QUESTIONED BY ME AS TO TFC CONFLICT AND TCAS RESOLUTION. RESPONSE BY DEP CTLR WAS THAT 'SMA Y TFC ABOVE OUR FLT WAS TOO CLOSE'(?) THEN INSTRUCTED TO CONTACT CENTER. TCAS WORKED AND POSSIBLE CONFLICT OF CLOSER PROX WAS AVOIDED.
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.