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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier widebody transport flew through both locs when lining up for a visual approach to runway 28R at sfo. There was another aircraft flying on the runway 28L localizer.
| Attributes | |
| ACN | 336750 |
| Time | |
| Date | 199605 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : flight engineer pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 100 flight time total : 20000 flight time type : 1000 |
| ASRS Report | 336750 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other spatial deviation |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
This flight was vectored east across san francisco bay for a visual approach to runway 28R in cavu conditions. On a south heading for a cross leg at 210 KTS assigned, approach asked if we saw the runway and we said 'yes.' he also pointed out 2 aircraft coming from our 10 O'clock (I think) also vectored for approachs to sfo. We were cleared for a visual approach to runway 28R too late on that heading. In the right turn (first officer was flying) I saw 1 of the aircraft approaching from the left but thought that our turn would clear him. After losing sight of him in the turn, which crossed the extended centerline of runway 28L, a TCASII RA was activated. Approach control made several calls such as 'slow to 170 KTS' and 1 that we missed as I was instructing the first officer to line up with the right side runway and to obey the TCASII. It might not be correct to say that we took evasive action because the 30 degree banked turn to the right was started, intended and needed for the approach. The other plane was seen on TCASII and at 1 point visually we lost sight of him in the right turn. This was after a long, descending downwind vector. There is sufficient time and space for maneuvering and vectoring to avoid this kind of juxtaposition.
Original NASA ASRS Text
Title: AN ACR WDB FLEW THROUGH BOTH LOCS WHEN LINING UP FOR A VISUAL APCH TO RWY 28R AT SFO. THERE WAS ANOTHER ACFT FLYING ON THE RWY 28L LOC.
Narrative: THIS FLT WAS VECTORED E ACROSS SAN FRANCISCO BAY FOR A VISUAL APCH TO RWY 28R IN CAVU CONDITIONS. ON A S HDG FOR A CROSS LEG AT 210 KTS ASSIGNED, APCH ASKED IF WE SAW THE RWY AND WE SAID 'YES.' HE ALSO POINTED OUT 2 ACFT COMING FROM OUR 10 O'CLOCK (I THINK) ALSO VECTORED FOR APCHS TO SFO. WE WERE CLRED FOR A VISUAL APCH TO RWY 28R TOO LATE ON THAT HEADING. IN THE R TURN (FO WAS FLYING) I SAW 1 OF THE ACFT APCHING FROM THE L BUT THOUGHT THAT OUR TURN WOULD CLR HIM. AFTER LOSING SIGHT OF HIM IN THE TURN, WHICH CROSSED THE EXTENDED CTRLINE OF RWY 28L, A TCASII RA WAS ACTIVATED. APCH CTL MADE SEVERAL CALLS SUCH AS 'SLOW TO 170 KTS' AND 1 THAT WE MISSED AS I WAS INSTRUCTING THE FO TO LINE UP WITH THE R SIDE RWY AND TO OBEY THE TCASII. IT MIGHT NOT BE CORRECT TO SAY THAT WE TOOK EVASIVE ACTION BECAUSE THE 30 DEG BANKED TURN TO THE R WAS STARTED, INTENDED AND NEEDED FOR THE APCH. THE OTHER PLANE WAS SEEN ON TCASII AND AT 1 POINT VISUALLY WE LOST SIGHT OF HIM IN THE R TURN. THIS WAS AFTER A LONG, DSNDING DOWNWIND VECTOR. THERE IS SUFFICIENT TIME AND SPACE FOR MANEUVERING AND VECTORING TO AVOID THIS KIND OF JUXTAPOSITION.
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.