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Air carrier large transport is instructed to follow widebody transport on taxiway ahead and after crossing an active runway widebody transport is informed that they crossed without clearance to do so.
| Attributes | |
| ACN | 147166 |
| Time | |
| Date | 199005 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : yyz |
| State Reference | ON |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | ground : holding ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | ground : holding ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 110 flight time total : 2300 flight time type : 400 |
| ASRS Report | 147166 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | incursion : runway non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Operational Deviation Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
After holding short of a parallel taxiway, we were told to follow another air carrier tri-jet. That tri-jet passed off our left, xed an active runway and taxied to the departing runway 15. We followed as told to do so. Our prior position (when holding short) put us less than 300' from the active landing runway. After following the other aircraft across the runway, ground control advised that we were not cleared across the runway. We reminded him that we were told to follow the tri-jet. He agreed, but noted he never cleared us across. We expressed our interpretation. The lesson I've learned is not to take controllers literally. When given a clearance to follow another aircraft, question the controller as to what the actual clearance is.
Original NASA ASRS Text
Title: ACR LGT IS INSTRUCTED TO FOLLOW WDB ON TXWY AHEAD AND AFTER CROSSING AN ACTIVE RWY WDB IS INFORMED THAT THEY CROSSED WITHOUT CLRNC TO DO SO.
Narrative: AFTER HOLDING SHORT OF A PARALLEL TXWY, WE WERE TOLD TO FOLLOW ANOTHER ACR TRI-JET. THAT TRI-JET PASSED OFF OUR L, XED AN ACTIVE RWY AND TAXIED TO THE DEPARTING RWY 15. WE FOLLOWED AS TOLD TO DO SO. OUR PRIOR POS (WHEN HOLDING SHORT) PUT US LESS THAN 300' FROM THE ACTIVE LNDG RWY. AFTER FOLLOWING THE OTHER ACFT ACROSS THE RWY, GND CTL ADVISED THAT WE WERE NOT CLRED ACROSS THE RWY. WE REMINDED HIM THAT WE WERE TOLD TO FOLLOW THE TRI-JET. HE AGREED, BUT NOTED HE NEVER CLRED US ACROSS. WE EXPRESSED OUR INTERPRETATION. THE LESSON I'VE LEARNED IS NOT TO TAKE CTLRS LITERALLY. WHEN GIVEN A CLRNC TO FOLLOW ANOTHER ACFT, QUESTION THE CTLR AS TO WHAT THE ACTUAL CLRNC IS.
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.