 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Medium large transport air carrier taxiing to runway 3L instructed to hold short of wolf taxiway. Flight crew misunderstood and proceeded past taxiway wolf. Taxiway wolf not depicted on commercial chart.
| Attributes | |
| ACN | 84914 |
| Time | |
| Date | 198804 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw |
| State Reference | MI |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | ground : preflight ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 8500 flight time type : 3500 |
| ASRS Report | 84914 |
| Person 2 | |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance |
| Independent Detector | other other : unspecified atc |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
This is a case where two people didn't make the difference. Taxi instructions were issued to us, 'taxi to runway 3L and hold short of wolf' which was acknowledged by the first officer and missed by me. When I asked the first officer if we were cleared to the runway or did they (ground) want us to hold somewhere, he replied, 'oh no, we're cleared all the way.' well, passing wolf, I was informed of my mistake. The first officer was embarrassed that he emphatically called it wrong. The lesson here is be certain of your instructions prior to acknowledgement. Also, if one of the crew members is uncertain, clarify it with the proper ATC agency. To err is human, that's why we have more than one person in the cockpit. The fact that 'wolf' doesn't appear on the commercial chart airport diagram didn't help either.
Original NASA ASRS Text
Title: MLG ACR TAXIING TO RWY 3L INSTRUCTED TO HOLD SHORT OF WOLF TXWY. FLC MISUNDERSTOOD AND PROCEEDED PAST TXWY WOLF. TXWY WOLF NOT DEPICTED ON COMMERCIAL CHART.
Narrative: THIS IS A CASE WHERE TWO PEOPLE DIDN'T MAKE THE DIFFERENCE. TAXI INSTRUCTIONS WERE ISSUED TO US, 'TAXI TO RWY 3L AND HOLD SHORT OF WOLF' WHICH WAS ACKNOWLEDGED BY THE F/O AND MISSED BY ME. WHEN I ASKED THE F/O IF WE WERE CLRED TO THE RWY OR DID THEY (GND) WANT US TO HOLD SOMEWHERE, HE REPLIED, 'OH NO, WE'RE CLRED ALL THE WAY.' WELL, PASSING WOLF, I WAS INFORMED OF MY MISTAKE. THE F/O WAS EMBARRASSED THAT HE EMPHATICALLY CALLED IT WRONG. THE LESSON HERE IS BE CERTAIN OF YOUR INSTRUCTIONS PRIOR TO ACKNOWLEDGEMENT. ALSO, IF ONE OF THE CREW MEMBERS IS UNCERTAIN, CLARIFY IT WITH THE PROPER ATC AGENCY. TO ERR IS HUMAN, THAT'S WHY WE HAVE MORE THAN ONE PERSON IN THE COCKPIT. THE FACT THAT 'WOLF' DOESN'T APPEAR ON THE COMMERCIAL CHART ARPT DIAGRAM DIDN'T HELP EITHER.
Data retrieved from NASA's ASRS site as of August 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.