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TRACON controller failed to provide IFR standard separation between an aircraft on the ILS and an aircraft being vectored for a visual approach to a parallel runway 750' from other runway.
| Attributes | |
| ACN | 143759 |
| Time | |
| Date | 199004 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sfo |
| State Reference | CA |
| Altitude | msl bound lower : 2000 msl bound upper : 2500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak tower : bgr |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Flight Phase | descent other landing other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other landing other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 500 |
| ASRS Report | 143759 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 2500 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was the captain, not flying, on flight XXX rno-sfo on apr/fri/90. Flight normal. Cleared for ILS 28R to sfo. Broke out under 2500' overcast. Traffic was called 10 O'clock 4 mi, an light transport. He was on a 040 degree heading (base leg) at 2000'. He was never cleared for the visual approach to 28L although that is what the controller intended. He made evasive action to avoid our aircraft, just as I was about to push over to descend below him. This was a very close situation! The controller was not 'fully rated'. He should insure clrncs are given and adhered to! There is no room for error on those parallel runways. He may have been pressured to start visuals before he was ready. The light transport aircraft was the first he was trying to get in visually.
Original NASA ASRS Text
Title: TRACON CTLR FAILED TO PROVIDE IFR STANDARD SEPARATION BETWEEN AN ACFT ON THE ILS AND AN ACFT BEING VECTORED FOR A VISUAL APCH TO A PARALLEL RWY 750' FROM OTHER RWY.
Narrative: I WAS THE CAPT, NOT FLYING, ON FLT XXX RNO-SFO ON APR/FRI/90. FLT NORMAL. CLRED FOR ILS 28R TO SFO. BROKE OUT UNDER 2500' OVERCAST. TFC WAS CALLED 10 O'CLOCK 4 MI, AN LTT. HE WAS ON A 040 DEG HDG (BASE LEG) AT 2000'. HE WAS NEVER CLRED FOR THE VISUAL APCH TO 28L ALTHOUGH THAT IS WHAT THE CTLR INTENDED. HE MADE EVASIVE ACTION TO AVOID OUR ACFT, JUST AS I WAS ABOUT TO PUSH OVER TO DSND BELOW HIM. THIS WAS A VERY CLOSE SITUATION! THE CTLR WAS NOT 'FULLY RATED'. HE SHOULD INSURE CLRNCS ARE GIVEN AND ADHERED TO! THERE IS NO ROOM FOR ERROR ON THOSE PARALLEL RWYS. HE MAY HAVE BEEN PRESSURED TO START VISUALS BEFORE HE WAS READY. THE LTT ACFT WAS THE FIRST HE WAS TRYING TO GET IN VISUALLY.
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.