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Medium large transport air carrier aircraft takeoff over top of large transport air carrier aircraft crossing runway after landing due to tower controller error.
| Attributes | |
| ACN | 253932 |
| Time | |
| Date | 199310 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : takeoff climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 25000 |
| ASRS Report | 253932 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : instrument |
| Events | |
| Anomaly | conflict : nmac conflict : ground critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 150 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
After landing runway 28R sfo, hold short runway 28L. Cleared to cross runway 28L. As we were crossing runway 28L I noticed landing lights on at departure end of runway 28L. Closer observation detected that they were getting closer rapidly. I accelerated as fast as possible to complete the crossing of runway 28L. As we left the center of the runway an airplane passed overhead, I believe it was an medium large transport. It appeared that an airplane took off on runway 28L as we were crossing it. The first officer and I recapped the event and are certain that we both heard and acknowledged clearance to cross. Subsequent discussion with sfo tower elicited an apology saying 'this isn't our best work.' they advised that the tapes were being marked and that we did have clearance to cross. I believe the practice of changing runways close in and often at sfo may have contributed to this, it seems that even the tower does not have a complete handle on the changes.
Original NASA ASRS Text
Title: MLG ACR ACFT TKOF OVER TOP OF LGT ACR ACFT XING RWY AFTER LNDG DUE TO TWR CTLR ERROR.
Narrative: AFTER LNDG RWY 28R SFO, HOLD SHORT RWY 28L. CLRED TO CROSS RWY 28L. AS WE WERE XING RWY 28L I NOTICED LNDG LIGHTS ON AT DEP END OF RWY 28L. CLOSER OBSERVATION DETECTED THAT THEY WERE GETTING CLOSER RAPIDLY. I ACCELERATED AS FAST AS POSSIBLE TO COMPLETE THE XING OF RWY 28L. AS WE LEFT THE CTR OF THE RWY AN AIRPLANE PASSED OVERHEAD, I BELIEVE IT WAS AN MLG. IT APPEARED THAT AN AIRPLANE TOOK OFF ON RWY 28L AS WE WERE XING IT. THE FO AND I RECAPPED THE EVENT AND ARE CERTAIN THAT WE BOTH HEARD AND ACKNOWLEDGED CLRNC TO CROSS. SUBSEQUENT DISCUSSION WITH SFO TWR ELICITED AN APOLOGY SAYING 'THIS ISN'T OUR BEST WORK.' THEY ADVISED THAT THE TAPES WERE BEING MARKED AND THAT WE DID HAVE CLRNC TO CROSS. I BELIEVE THE PRACTICE OF CHANGING RWYS CLOSE IN AND OFTEN AT SFO MAY HAVE CONTRIBUTED TO THIS, IT SEEMS THAT EVEN THE TWR DOES NOT HAVE A COMPLETE HANDLE ON THE CHANGES.
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.